Johannesburg Intl Weather Records (SFM00068368)
Record envelope, standing records and threshold days for Johannesburg Intl (SFM00068368), South Africa, with 48 years of record.
Key Facts for Johannesburg Intl
- Johannesburg Intl (SFM00068368) is a weather station in South Africa at -26.14 latitude and 28.25 longitude, 1,694 m (5,558 ft) above sea level.
- The station reports from 1973 to 2020, 48 years of record.
- 1,464 records set at Johannesburg Intl still stand.
- Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
- Johannesburg Intl set a daily record low maximum temperature of 12.0 C (53.6 F) on 27 May 2020.
About the Station
- Location: South Africa, -26.14 latitude, 28.25 longitude.
- Elevation: 1,694 m (5,558 ft).
- Period of record: 1973 to 2020, 48 years.
- Eligible elements: tmax, tmin.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 37.0 C (98.6 F) | 6.0 C (42.8 F) | n/a | n/a |
| Feb | 33.5 C (92.3 F) | 6.0 C (42.8 F) | n/a | n/a |
| Mar | 35.0 C (95.0 F) | 2.0 C (35.6 F) | n/a | n/a |
| Apr | 29.3 C (84.7 F) | -1.0 C (30.2 F) | n/a | n/a |
| May | 29.0 C (84.2 F) | -5.3 C (22.5 F) | n/a | n/a |
| Jun | 28.7 C (83.7 F) | -7.0 C (19.4 F) | n/a | n/a |
| Jul | 24.4 C (75.9 F) | -6.3 C (20.7 F) | n/a | n/a |
| Aug | 28.0 C (82.4 F) | -7.0 C (19.4 F) | n/a | n/a |
| Sep | 33.1 C (91.6 F) | -3.3 C (26.1 F) | n/a | n/a |
| Oct | 34.1 C (93.4 F) | 0.5 C (32.9 F) | n/a | n/a |
| Nov | 33.6 C (92.5 F) | 0.0 C (32.0 F) | n/a | n/a |
| Dec | 34.1 C (93.4 F) | 2.7 C (36.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1975 | 3 |
| 1976 | 15 |
| 1977 | 1 |
| 1979 | 2 |
| 1980 | 15 |
| 1981 | 16 |
| 1982 | 29 |
| 1983 | 51 |
| 1984 | 45 |
| 1985 | 32 |
| 1986 | 19 |
| 1987 | 41 |
| 1988 | 42 |
| 1989 | 32 |
| 1990 | 33 |
| 1991 | 31 |
| 1992 | 62 |
| 1993 | 30 |
| 1994 | 39 |
| 1995 | 30 |
| 1996 | 28 |
| 1997 | 42 |
| 1998 | 56 |
| 1999 | 18 |
| 2000 | 39 |
| 2001 | 28 |
| 2002 | 33 |
| 2003 | 30 |
| 2004 | 22 |
| 2005 | 19 |
| 2006 | 39 |
| 2007 | 53 |
| 2008 | 28 |
| 2009 | 35 |
| 2010 | 25 |
| 2011 | 30 |
| 2012 | 34 |
| 2013 | 46 |
| 2014 | 49 |
| 2015 | 83 |
| 2016 | 56 |
| 2017 | 47 |
| 2018 | 45 |
| 2020 | 11 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 2015-11-01 | Record high minimum temperature | Record high minimum temperature 21.5 C (70.7 F) |
| 2016-01-07 | Record high minimum temperature | Record high minimum temperature 22.2 C (72.0 F) |
Wettest Day of Each Month
Dec: 169.9 mm (6.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 160.0 mm (6.3 in) | 9 January 2016 |
| Feb | 65.0 mm (2.6 in) | 12 February 1996 |
| Mar | 73.4 mm (2.9 in) | 5 March 1997 |
| Apr | 64.0 mm (2.5 in) | 27 April 2020 |
| May | 48.0 mm (1.9 in) | 15 May 2016 |
| Jun | 43.2 mm (1.7 in) | 1 June 2002 |
| Jul | 19.1 mm (0.8 in) | 20 July 2007 |
| Aug | 48.0 mm (1.9 in) | 10 August 2013 |
| Sep | 101.3 mm (4.0 in) | 13 September 2001 |
| Oct | 110.2 mm (4.3 in) | 31 October 1985 |
| Nov | 89.9 mm (3.5 in) | 10 November 2016 |
| Dec | 169.9 mm (6.7 in) | 3 December 2015 |
Period of Record Coverage
1974 to 2020| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1974 | 8 | 2% | No |
| 1975 | 90 | 25% | No |
| 1976 | 190 | 52% | No |
| 1977 | 19 | 5% | No |
| 1981 | 5 | 1% | No |
| 1982 | 345 | 95% | Yes |
| 1983 | 353 | 97% | Yes |
| 1984 | 352 | 96% | Yes |
| 1985 | 352 | 96% | Yes |
| 1986 | 359 | 98% | Yes |
| 1987 | 348 | 95% | Yes |
| 1988 | 320 | 87% | No |
| 1989 | 318 | 87% | No |
| 1990 | 342 | 94% | Yes |
| 1991 | 356 | 98% | Yes |
| 1992 | 359 | 98% | Yes |
| 1993 | 357 | 98% | Yes |
| 1994 | 361 | 99% | Yes |
| 1995 | 340 | 93% | Yes |
| 1996 | 351 | 96% | Yes |
| 1997 | 350 | 96% | Yes |
| 1998 | 330 | 90% | Yes |
| 1999 | 336 | 92% | Yes |
| 2000 | 342 | 93% | Yes |
| 2001 | 342 | 94% | Yes |
| 2002 | 325 | 89% | No |
| 2003 | 320 | 88% | No |
| 2004 | 310 | 85% | No |
| 2005 | 289 | 79% | No |
| 2006 | 296 | 81% | No |
| 2007 | 288 | 79% | No |
| 2008 | 304 | 83% | No |
| 2009 | 281 | 77% | No |
| 2010 | 317 | 87% | No |
| 2011 | 319 | 87% | No |
| 2012 | 324 | 89% | No |
| 2013 | 323 | 88% | No |
| 2014 | 330 | 90% | Yes |
| 2015 | 329 | 90% | Yes |
| 2016 | 324 | 89% | No |
| 2017 | 300 | 82% | No |
| 2018 | 326 | 89% | No |
| 2020 | 123 | 34% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 27 May 2020 | Johannesburg Intl, ZA | daily low max | 12.0 C (53.6 F) | 0.8 C (1.4 F) | 24 years | 13 of 100 (Routine) |
| 27 May 2020 | Johannesburg Intl, ZA | daily low min | 0.1 C (32.2 F) | 0.4 C (0.7 F) | 17 years | 10 of 100 (Routine) |
| 28 April 2020 | Johannesburg Intl, ZA | daily low max | 14.5 C (58.1 F) | 3.8 C (6.8 F) | 36 years | 28 of 100 (Routine) |
| 4 April 2020 | Johannesburg Intl, ZA | daily low max | 14.8 C (58.6 F) | 2.3 C (4.1 F) | 24 years | 19 of 100 (Routine) |
| 2 April 2020 | Johannesburg Intl, ZA | daily low max | 15.9 C (60.6 F) | 3.1 C (5.6 F) | 16 years | 19 of 100 (Routine) |
| 31 March 2020 | Johannesburg Intl, ZA | daily low max (Tie) | 20.6 C (69.1 F) | tie | 14 years | 2 of 100 (Routine) |
| 2 March 2020 | Johannesburg Intl, ZA | daily low max | 16.9 C (62.4 F) | 0.8 C (1.4 F) | 6 years | 7 of 100 (Routine) |
| 1 March 2020 | Johannesburg Intl, ZA | daily low max | 18.6 C (65.5 F) | 2.9 C (5.2 F) | 19 years | 19 of 100 (Routine) |
| 29 February 2020 | Johannesburg Intl, ZA | daily low max | 18.6 C (65.5 F) | 4.4 C (7.9 F) | 20 years | 26 of 100 (Routine) |
| 22 February 2020 | Johannesburg Intl, ZA | daily low min | 7.6 C (45.7 F) | 3.2 C (5.8 F) | 28 years | 28 of 100 (Routine) |
| 8 February 2020 | Johannesburg Intl, ZA | daily low max | 17.8 C (64.0 F) | 0.5 C (0.9 F) | 25 years | 12 of 100 (Routine) |
| 8 January 2020 | Johannesburg Intl, ZA | daily high min | 18.1 C (64.6 F) | 0.7 C (1.3 F) | 36 years | 18 of 100 (Routine) |
| 31 December 2018 | Johannesburg Intl, ZA | daily low max | 18.5 C (65.3 F) | 2.8 C (5.0 F) | 29 years | 22 of 100 (Routine) |
| 29 December 2018 | Johannesburg Intl, ZA | daily low max (Tie) | 19.9 C (67.8 F) | tie | 4 years | 1 of 100 (Routine) |
| 27 December 2018 | Johannesburg Intl, ZA | daily high max | 32.4 C (90.3 F) | 2.1 C (3.8 F) | 36 years | 21 of 100 (Routine) |
| 26 December 2018 | Johannesburg Intl, ZA | monthly high min | 21.5 C (70.7 F) | 1.7 C (3.1 F) | 15 years | 25 of 100 (Routine) |
| 26 December 2018 | Johannesburg Intl, ZA | monthly high max | 34.1 C (93.4 F) | 1.0 C (1.8 F) | 3 years | 17 of 100 (Routine) |
| 13 December 2018 | Johannesburg Intl, ZA | daily high max | 32.6 C (90.7 F) | 1.4 C (2.5 F) | 15 years | 13 of 100 (Routine) |
| 11 December 2018 | Johannesburg Intl, ZA | daily low min | 10.5 C (50.9 F) | 0.3 C (0.5 F) | 12 years | 8 of 100 (Routine) |
| 28 November 2018 | Johannesburg Intl, ZA | daily high min | 15.8 C (60.4 F) | 0.8 C (1.4 F) | 9 years | 8 of 100 (Routine) |
Climate Trend
11 complete years, 1983 to 2015| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1983 | 17.7 C | +0.79 C |
| 1984 | 17.3 C | +0.35 C |
| 1985 | 17.4 C | +0.50 C |
| 1986 | 17.1 C | +0.22 C |
| 1991 | 16.2 C | -0.70 C |
| 1992 | 17.1 C | +0.19 C |
| 1993 | 16.6 C | -0.27 C |
| 1994 | 15.7 C | -1.25 C |
| 1995 | 16.3 C | -0.66 C |
| 2014 | 16.8 C | -0.12 C |
| 2015 | 17.9 C | +0.99 C |
This station does not have enough complete years (30 are needed) to fit a temperature trend.
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1973 to 2020| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.0 C (98.6 F) | 1975 | 32.0 C (89.6 F) | 43 |
| Coldest night (TNn) | -7.0 C (19.4 F) | 1992 | -2.6 C (27.3 F) | 43 |
| Wettest day (Rx1day) | 169.9 mm (6.7 in) | 2015 | 46.2 mm (1.8 in) | 47 |
| Wettest five days (Rx5day) | 261.3 mm (10.3 in) | 2016 | 84.3 mm (3.3 in) | 45 |
| Longest dry spell (CDD) | 66 days | 1978 | 10 days | 47 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1973 | n/a |
| 1974 | 27.0 C (80.6 F) |
| 1975 | 37.0 C (98.6 F) |
| 1976 | 29.0 C (84.2 F) |
| 1977 | 31.0 C (87.8 F) |
| 1978 | n/a |
| 1979 | n/a |
| 1980 | n/a |
| 1981 | 32.0 C (89.6 F) |
| 1982 | 32.2 C (90.0 F) |
| 1983 | 35.0 C (95.0 F) |
| 1984 | 32.6 C (90.7 F) |
| 1985 | 32.2 C (90.0 F) |
| 1986 | 30.5 C (86.9 F) |
| 1987 | 31.2 C (88.2 F) |
| 1988 | 31.9 C (89.4 F) |
| 1989 | 30.4 C (86.7 F) |
| 1990 | 32.9 C (91.2 F) |
| 1991 | 31.2 C (88.2 F) |
| 1992 | 32.0 C (89.6 F) |
| 1993 | 33.7 C (92.7 F) |
| 1994 | 32.6 C (90.7 F) |
| 1995 | 31.9 C (89.4 F) |
| 1996 | 31.1 C (88.0 F) |
| 1997 | 33.1 C (91.6 F) |
| 1998 | 30.1 C (86.2 F) |
| 1999 | 32.0 C (89.6 F) |
| 2000 | 29.1 C (84.4 F) |
| 2001 | 32.8 C (91.0 F) |
| 2002 | 31.3 C (88.3 F) |
| 2003 | 32.0 C (89.6 F) |
| 2004 | 31.5 C (88.7 F) |
| 2005 | 33.6 C (92.5 F) |
| 2006 | 32.5 C (90.5 F) |
| 2007 | 32.3 C (90.1 F) |
| 2008 | 31.9 C (89.4 F) |
| 2009 | 30.6 C (87.1 F) |
| 2010 | 31.3 C (88.3 F) |
| 2011 | 34.1 C (93.4 F) |
| 2012 | 30.4 C (86.7 F) |
| 2013 | 32.4 C (90.3 F) |
| 2014 | 31.0 C (87.8 F) |
| 2015 | 33.6 C (92.5 F) |
| 2016 | 35.9 C (96.6 F) |
| 2017 | 30.6 C (87.1 F) |
| 2018 | 34.1 C (93.4 F) |
| 2020 | 29.5 C (85.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1973 | 1.0 C (33.8 F) |
| 1974 | n/a |
| 1975 | 11.0 C (51.8 F) |
| 1976 | n/a |
| 1977 | n/a |
| 1978 | n/a |
| 1979 | 9.0 C (48.2 F) |
| 1980 | -2.0 C (28.4 F) |
| 1981 | -3.0 C (26.6 F) |
| 1982 | 0.5 C (32.9 F) |
| 1983 | -1.9 C (28.6 F) |
| 1984 | -0.4 C (31.3 F) |
| 1985 | -2.6 C (27.3 F) |
| 1986 | 1.0 C (33.8 F) |
| 1987 | -2.1 C (28.2 F) |
| 1988 | -1.4 C (29.5 F) |
| 1989 | -4.5 C (23.9 F) |
| 1990 | -5.1 C (22.8 F) |
| 1991 | -4.3 C (24.3 F) |
| 1992 | -7.0 C (19.4 F) |
| 1993 | -4.1 C (24.6 F) |
| 1994 | -5.5 C (22.1 F) |
| 1995 | -6.3 C (20.7 F) |
| 1996 | -3.7 C (25.3 F) |
| 1997 | -3.1 C (26.4 F) |
| 1998 | -5.2 C (22.6 F) |
| 1999 | -2.4 C (27.7 F) |
| 2000 | -5.5 C (22.1 F) |
| 2001 | -4.2 C (24.4 F) |
| 2002 | -4.7 C (23.5 F) |
| 2003 | -7.0 C (19.4 F) |
| 2004 | -3.3 C (26.1 F) |
| 2005 | -1.4 C (29.5 F) |
| 2006 | -2.3 C (27.9 F) |
| 2007 | -3.5 C (25.7 F) |
| 2008 | -1.5 C (29.3 F) |
| 2009 | -3.5 C (25.7 F) |
| 2010 | -6.4 C (20.5 F) |
| 2011 | -3.0 C (26.6 F) |
| 2012 | -2.2 C (28.0 F) |
| 2013 | -1.9 C (28.6 F) |
| 2014 | -3.6 C (25.5 F) |
| 2015 | -1.8 C (28.8 F) |
| 2016 | -1.0 C (30.2 F) |
| 2017 | -1.9 C (28.6 F) |
| 2018 | -2.5 C (27.5 F) |
| 2020 | 0.1 C (32.2 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1973 | 19.1 mm (0.8 in) |
| 1974 | 39.1 mm (1.5 in) |
| 1975 | 0.0 mm (0.00 in) |
| 1976 | 80.0 mm (3.1 in) |
| 1977 | 52.1 mm (2.1 in) |
| 1978 | 49.0 mm (1.9 in) |
| 1979 | 41.9 mm (1.6 in) |
| 1980 | 59.9 mm (2.4 in) |
| 1981 | 39.1 mm (1.5 in) |
| 1982 | 38.4 mm (1.5 in) |
| 1983 | 30.2 mm (1.2 in) |
| 1984 | 40.4 mm (1.6 in) |
| 1985 | 110.2 mm (4.3 in) |
| 1986 | 66.5 mm (2.6 in) |
| 1987 | 61.7 mm (2.4 in) |
| 1988 | 49.3 mm (1.9 in) |
| 1989 | 51.6 mm (2.0 in) |
| 1990 | 56.1 mm (2.2 in) |
| 1991 | 41.7 mm (1.6 in) |
| 1992 | 43.4 mm (1.7 in) |
| 1993 | 48.5 mm (1.9 in) |
| 1994 | 44.7 mm (1.8 in) |
| 1995 | 74.7 mm (2.9 in) |
| 1996 | 65.0 mm (2.6 in) |
| 1997 | 73.4 mm (2.9 in) |
| 1998 | 46.0 mm (1.8 in) |
| 1999 | 37.3 mm (1.5 in) |
| 2000 | 59.7 mm (2.4 in) |
| 2001 | 101.3 mm (4.0 in) |
| 2002 | 43.2 mm (1.7 in) |
| 2003 | 55.9 mm (2.2 in) |
| 2004 | 57.4 mm (2.3 in) |
| 2005 | 46.2 mm (1.8 in) |
| 2006 | 29.7 mm (1.2 in) |
| 2007 | 32.0 mm (1.3 in) |
| 2008 | 40.1 mm (1.6 in) |
| 2009 | 43.7 mm (1.7 in) |
| 2010 | 57.4 mm (2.3 in) |
| 2011 | 39.6 mm (1.6 in) |
| 2012 | 32.0 mm (1.3 in) |
| 2013 | 48.0 mm (1.9 in) |
| 2014 | 39.1 mm (1.5 in) |
| 2015 | 169.9 mm (6.7 in) |
| 2016 | 160.0 mm (6.3 in) |
| 2017 | 40.9 mm (1.6 in) |
| 2018 | 32.0 mm (1.3 in) |
| 2020 | 64.0 mm (2.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1973 | n/a |
| 1974 | 1.0 mm (0.04 in) |
| 1975 | n/a |
| 1976 | 133.3 mm (5.2 in) |
| 1977 | 74.2 mm (2.9 in) |
| 1978 | 115.3 mm (4.5 in) |
| 1979 | 104.1 mm (4.1 in) |
| 1980 | 92.9 mm (3.7 in) |
| 1981 | 113.0 mm (4.4 in) |
| 1982 | 82.0 mm (3.2 in) |
| 1983 | 73.4 mm (2.9 in) |
| 1984 | 56.2 mm (2.2 in) |
| 1985 | 209.8 mm (8.3 in) |
| 1986 | 102.7 mm (4.0 in) |
| 1987 | 112.5 mm (4.4 in) |
| 1988 | 73.2 mm (2.9 in) |
| 1989 | 76.7 mm (3.0 in) |
| 1990 | 84.3 mm (3.3 in) |
| 1991 | 104.5 mm (4.1 in) |
| 1992 | 51.7 mm (2.0 in) |
| 1993 | 93.5 mm (3.7 in) |
| 1994 | 70.9 mm (2.8 in) |
| 1995 | 125.2 mm (4.9 in) |
| 1996 | 194.8 mm (7.7 in) |
| 1997 | 175.5 mm (6.9 in) |
| 1998 | 109.0 mm (4.3 in) |
| 1999 | 53.9 mm (2.1 in) |
| 2000 | 162.4 mm (6.4 in) |
| 2001 | 118.3 mm (4.7 in) |
| 2002 | 58.2 mm (2.3 in) |
| 2003 | 82.1 mm (3.2 in) |
| 2004 | 90.7 mm (3.6 in) |
| 2005 | 61.0 mm (2.4 in) |
| 2006 | 67.4 mm (2.7 in) |
| 2007 | 57.1 mm (2.2 in) |
| 2008 | 93.5 mm (3.7 in) |
| 2009 | 109.0 mm (4.3 in) |
| 2010 | 79.0 mm (3.1 in) |
| 2011 | 97.3 mm (3.8 in) |
| 2012 | 73.2 mm (2.9 in) |
| 2013 | 33.5 mm (1.3 in) |
| 2014 | 67.1 mm (2.6 in) |
| 2015 | 46.0 mm (1.8 in) |
| 2016 | 261.3 mm (10.3 in) |
| 2017 | 84.0 mm (3.3 in) |
| 2018 | 22.6 mm (0.9 in) |
| 2020 | 91.7 mm (3.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1973 | 1 day |
| 1974 | 7 days |
| 1975 | 2 days |
| 1976 | 10 days |
| 1977 | 52 days |
| 1978 | 66 days |
| 1979 | 35 days |
| 1980 | 32 days |
| 1981 | 56 days |
| 1982 | 64 days |
| 1983 | 28 days |
| 1984 | 8 days |
| 1985 | 12 days |
| 1986 | 11 days |
| 1987 | 21 days |
| 1988 | 10 days |
| 1989 | 14 days |
| 1990 | 45 days |
| 1991 | 35 days |
| 1992 | 34 days |
| 1993 | 24 days |
| 1994 | 29 days |
| 1995 | 22 days |
| 1996 | 25 days |
| 1997 | 33 days |
| 1998 | 55 days |
| 1999 | 6 days |
| 2000 | 5 days |
| 2001 | 3 days |
| 2002 | 10 days |
| 2003 | 17 days |
| 2004 | 17 days |
| 2005 | 15 days |
| 2006 | 5 days |
| 2007 | 4 days |
| 2008 | 5 days |
| 2009 | 5 days |
| 2010 | 3 days |
| 2011 | 4 days |
| 2012 | 4 days |
| 2013 | 5 days |
| 2014 | 3 days |
| 2015 | 4 days |
| 2016 | 4 days |
| 2017 | 4 days |
| 2018 | 4 days |
| 2020 | 3 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).