Mayumba Weather Records (GB000004503)

Record envelope, standing records and threshold days for Mayumba (GB000004503), Gabon, with 31 years of record.

Key Facts for Mayumba

Mayumba (GB000004503) is a weather station in Gabon at -3.42 latitude and 10.65 longitude, 37 m (121 ft) above sea level.
The station reports from 1950 to 1980, 31 years of record.
1,464 records set at Mayumba still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Gabon, -3.42 latitude, 10.65 longitude.
Elevation: 37 m (121 ft).
Period of record: 1950 to 1980, 31 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Mayumba. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Mayumba, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	31.8 C (89.2 F)	20.1 C (68.2 F)	n/a	n/a
Feb	32.6 C (90.7 F)	19.6 C (67.3 F)	n/a	n/a
Mar	33.2 C (91.8 F)	20.2 C (68.4 F)	n/a	n/a
Apr	33.1 C (91.6 F)	20.5 C (68.9 F)	n/a	n/a
May	31.9 C (89.4 F)	19.2 C (66.6 F)	n/a	n/a
Jun	31.0 C (87.8 F)	15.5 C (59.9 F)	n/a	n/a
Jul	29.0 C (84.2 F)	15.5 C (59.9 F)	n/a	n/a
Aug	29.0 C (84.2 F)	15.8 C (60.4 F)	n/a	n/a
Sep	29.6 C (85.3 F)	17.8 C (64.0 F)	n/a	n/a
Oct	30.6 C (87.1 F)	19.2 C (66.6 F)	n/a	n/a
Nov	34.0 C (93.2 F)	18.0 C (64.4 F)	n/a	n/a
Dec	31.6 C (88.9 F)	18.4 C (65.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Mayumba still stand. 1950 holds the most, with 113.

Standing records at Mayumba by the year they were set
Year set	Standing records
1950	113
1951	44
1952	59
1953	69
1954	67
1955	51
1956	59
1957	26
1958	81
1959	16
1960	80
1961	42
1962	37
1963	73
1964	66
1965	18
1967	28
1968	35
1969	39
1970	37
1971	25
1972	47
1973	69
1974	42
1975	35
1976	27
1977	57
1978	49
1979	38
1980	35

Wettest Day of Each Month

Feb: 325.2 mm (12.8 in)

The wettest day on record for each calendar month at Mayumba. The most was 325.2 mm (12.8 in) on 22 February 1959.

Record daily precipitation for each month at Mayumba
Month	Record daily precipitation (mm)	Date
Jan	217.6 mm (8.6 in)	19 January 1961
Feb	325.2 mm (12.8 in)	22 February 1959
Mar	213.6 mm (8.4 in)	8 March 1979
Apr	124.0 mm (4.9 in)	2 April 1956
May	85.7 mm (3.4 in)	14 May 1968
Jun	21.0 mm (0.8 in)	15 June 1975
Jul	1.5 mm (0.06 in)	24 July 1967
Aug	7.9 mm (0.31 in)	31 August 1978
Sep	22.4 mm (0.9 in)	17 September 1977
Oct	160.8 mm (6.3 in)	31 October 1980
Nov	162.9 mm (6.4 in)	23 November 1960
Dec	182.0 mm (7.2 in)	12 December 1957

Period of Record Coverage

1950 to 1980

30 years of record at Mayumba, 1950 to 1980. 3 years have data for under 90 percent of days and are left out of rankings: 1959, 1960, 1976.

Days with data per year at Mayumba
Year	Days with data	Share of year	Complete
1950	365	100%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	151	41%	No
1960	306	84%	No
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1967	352	96%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	335	92%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	302	83%	No
1977	364	100%	Yes
1978	365	100%	Yes
1979	331	91%	Yes
1980	359	98%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

25 complete years, 1950 to 1980

One stripe for each of 25 complete years at Mayumba, 1950 to 1980. Blue stripes are years cooler than the station's own mean of 25.1 C (77.1 F); red stripes are warmer. The coolest year was 1954, at 24.5 C (76.1 F), and the warmest was 1963, at 25.5 C (77.9 F). The strongest colour marks a difference of 0.6 C (1.1 F).

Annual mean temperature at Mayumba as warming stripes, 1950 to 1980
Year	Annual mean temperature	Difference from the station mean
1950	24.6 C	-0.51 C
1951	24.9 C	-0.16 C
1952	25.2 C	+0.16 C
1953	24.9 C	-0.17 C
1954	24.5 C	-0.58 C
1955	25.0 C	-0.13 C
1956	25.0 C	-0.07 C
1957	25.1 C	+0.00 C
1958	24.9 C	-0.22 C
1961	25.1 C	+0.06 C
1962	25.2 C	+0.12 C
1963	25.5 C	+0.44 C
1964	25.2 C	+0.08 C
1965	25.1 C	+0.02 C
1967	25.2 C	+0.15 C
1968	25.0 C	-0.06 C
1969	25.1 C	+0.05 C
1970	25.1 C	+0.03 C
1972	25.2 C	+0.08 C
1973	25.5 C	+0.38 C
1974	25.0 C	-0.08 C
1975	25.0 C	-0.11 C
1977	25.4 C	+0.28 C
1978	25.2 C	+0.12 C
1980	25.1 C	+0.04 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

1950 to 1980

Yearly extremes at Mayumba: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.0 C (93.2 F)	1975	32.0 C (89.6 F)	30
Coldest night (TNn)	15.5 C (59.9 F)	1954	17.4 C (63.2 F)	30
Wettest day (Rx1day)	325.2 mm (12.8 in)	1959	119.5 mm (4.7 in)	30
Wettest five days (Rx5day)	359.0 mm (14.1 in)	1959	216.9 mm (8.5 in)	30
Longest dry spell (CDD)	142 days	1968	95 days	30

Hottest day (TXx)

The hottest day of the year at Mayumba, 1950 to 1980. The record is 34.0 C (93.2 F) in 1975, marked on the chart; the median year is 32.0 C (89.6 F).

Hottest day (TXx) at Mayumba by year
Year	Hottest day (TXx)
1950	33.2 C (91.8 F)
1951	32.3 C (90.1 F)
1952	33.2 C (91.8 F)
1953	32.4 C (90.3 F)
1954	32.4 C (90.3 F)
1955	31.5 C (88.7 F)
1956	32.1 C (89.8 F)
1957	32.0 C (89.6 F)
1958	32.0 C (89.6 F)
1959	32.0 C (89.6 F)
1960	32.0 C (89.6 F)
1961	32.0 C (89.6 F)
1962	31.8 C (89.2 F)
1963	31.9 C (89.4 F)
1964	32.2 C (90.0 F)
1965	31.6 C (88.9 F)
1967	32.0 C (89.6 F)
1968	32.4 C (90.3 F)
1969	32.2 C (90.0 F)
1970	32.0 C (89.6 F)
1971	31.5 C (88.7 F)
1972	31.6 C (88.9 F)
1973	32.8 C (91.0 F)
1974	32.0 C (89.6 F)
1975	34.0 C (93.2 F)
1976	31.0 C (87.8 F)
1977	33.0 C (91.4 F)
1978	31.8 C (89.2 F)
1979	32.6 C (90.7 F)
1980	32.0 C (89.6 F)

Coldest night (TNn)

The coldest night of the year at Mayumba, 1950 to 1980. The record is 15.5 C (59.9 F) in 1954, marked on the chart; the median year is 17.4 C (63.2 F).

Coldest night (TNn) at Mayumba by year
Year	Coldest night (TNn)
1950	16.2 C (61.2 F)
1951	17.0 C (62.6 F)
1952	17.5 C (63.5 F)
1953	16.5 C (61.7 F)
1954	15.5 C (59.9 F)
1955	17.4 C (63.3 F)
1956	16.8 C (62.2 F)
1957	17.3 C (63.1 F)
1958	16.3 C (61.3 F)
1959	21.0 C (69.8 F)
1960	18.8 C (65.8 F)
1961	17.6 C (63.7 F)
1962	17.6 C (63.7 F)
1963	18.0 C (64.4 F)
1964	17.9 C (64.2 F)
1965	18.0 C (64.4 F)
1967	17.4 C (63.3 F)
1968	17.2 C (63.0 F)
1969	17.2 C (63.0 F)
1970	17.6 C (63.7 F)
1971	17.5 C (63.5 F)
1972	15.8 C (60.4 F)
1973	18.0 C (64.4 F)
1974	17.0 C (62.6 F)
1975	16.5 C (61.7 F)
1976	16.5 C (61.7 F)
1977	16.5 C (61.7 F)
1978	18.0 C (64.4 F)
1979	17.5 C (63.5 F)
1980	17.3 C (63.1 F)

Wettest day (Rx1day)

The wettest day of the year at Mayumba, 1950 to 1980. The record is 325.2 mm (12.8 in) in 1959, marked on the chart; the median year is 119.5 mm (4.7 in).

Wettest day (Rx1day) at Mayumba by year
Year	Wettest day (Rx1day)
1950	161.4 mm (6.4 in)
1951	104.3 mm (4.1 in)
1952	101.4 mm (4.0 in)
1953	187.8 mm (7.4 in)
1954	227.4 mm (9.0 in)
1955	152.9 mm (6.0 in)
1956	124.0 mm (4.9 in)
1957	182.0 mm (7.2 in)
1958	58.5 mm (2.3 in)
1959	325.2 mm (12.8 in)
1960	162.9 mm (6.4 in)
1961	217.6 mm (8.6 in)
1962	107.7 mm (4.2 in)
1963	66.3 mm (2.6 in)
1964	138.1 mm (5.4 in)
1965	97.8 mm (3.9 in)
1967	112.0 mm (4.4 in)
1968	90.0 mm (3.5 in)
1969	114.9 mm (4.5 in)
1970	126.8 mm (5.0 in)
1971	66.0 mm (2.6 in)
1972	67.2 mm (2.6 in)
1973	99.0 mm (3.9 in)
1974	138.1 mm (5.4 in)
1975	108.0 mm (4.3 in)
1976	99.1 mm (3.9 in)
1977	141.1 mm (5.6 in)
1978	92.6 mm (3.6 in)
1979	213.6 mm (8.4 in)
1980	160.8 mm (6.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mayumba, 1950 to 1980. The record is 359.0 mm (14.1 in) in 1959, marked on the chart; the median year is 216.9 mm (8.5 in).

Wettest five days (Rx5day) at Mayumba by year
Year	Wettest five days (Rx5day)
1950	191.5 mm (7.5 in)
1951	201.7 mm (7.9 in)
1952	178.8 mm (7.0 in)
1953	277.5 mm (10.9 in)
1954	325.2 mm (12.8 in)
1955	239.0 mm (9.4 in)
1956	162.9 mm (6.4 in)
1957	220.7 mm (8.7 in)
1958	82.8 mm (3.3 in)
1959	359.0 mm (14.1 in)
1960	178.8 mm (7.0 in)
1961	271.0 mm (10.7 in)
1962	205.4 mm (8.1 in)
1963	86.4 mm (3.4 in)
1964	183.4 mm (7.2 in)
1965	181.5 mm (7.1 in)
1967	317.9 mm (12.5 in)
1968	213.1 mm (8.4 in)
1969	259.8 mm (10.2 in)
1970	304.7 mm (12.0 in)
1971	110.2 mm (4.3 in)
1972	152.4 mm (6.0 in)
1973	278.7 mm (11.0 in)
1974	169.8 mm (6.7 in)
1975	237.3 mm (9.3 in)
1976	170.3 mm (6.7 in)
1977	316.0 mm (12.4 in)
1978	232.5 mm (9.2 in)
1979	305.0 mm (12.0 in)
1980	264.1 mm (10.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mayumba, 1950 to 1980. The record is 142 days in 1968, marked on the chart; the median year is 95 days.

Longest dry spell (CDD) at Mayumba by year
Year	Longest dry spell (CDD)
1950	140 days
1951	113 days
1952	92 days
1953	79 days
1954	115 days
1955	88 days
1956	92 days
1957	99 days
1958	121 days
1959	20 days
1960	113 days
1961	98 days
1962	137 days
1963	128 days
1964	99 days
1965	70 days
1967	54 days
1968	142 days
1969	55 days
1970	84 days
1971	69 days
1972	99 days
1973	111 days
1974	94 days
1975	60 days
1976	99 days
1977	87 days
1978	79 days
1979	43 days
1980	96 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

Data for Mayumba standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mayumba threshold days by year: CSV or JSON. Field meanings are on the data page.

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 2025-12-31. Last revised 31 December 2025 (2025-12-31).