Mombasa Threshold Days by Year (KE000063820)

10 fixed thresholds counted per year at Mombasa (KE000063820): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mombasa Thresholds

Mombasa: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1968 with 54.
Mombasa: days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1968 with 24.
Mombasa: days with 50 mm (1.97 in) or more of precipitation in 40 years, most in 1968 with 12.
Mombasa: days with 100 mm (3.94 in) or more of precipitation in 13 years, most in 1972 with 3.
10 fixed thresholds have at least one qualifying day at Mombasa.

Days with 10 mm (0.39 in) or more of precipitation

42 years with a qualifying day

Days per year at Mombasa with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 54 in 1968.

Days with 10 mm (0.39 in) or more of precipitation per year at Mombasa
Year	Days	Decade average
1957	38	33.3
1958	29	33.3
1959	33	33.3
1960	29	33.5
1961	41	33.5
1962	22	33.5
1963	34	33.5
1964	17	33.5
1965	29	33.5
1966	41	33.5
1967	37	33.5
1968	54	33.5
1969	31	33.5
1970	16	29.5
1971	20	29.5
1972	40	29.5
1973	36	29.5
1974	20	29.5
1975	28	29.5
1976	20	29.5
1977	36	29.5
1978	42	29.5
1979	37	29.5
1980	18	31.2
1981	33	31.2
1982	48	31.2
1983	36	31.2
1984	37	31.2
1985	24	31.2
1986	30	31.2
1987	24	31.2
1988	24	31.2
1989	38	31.2
1990	32	34.8
1991	38	34.8
1992	34	34.8
1993	21	34.8
1994	46	34.8
1995	32	34.8
1996	23	34.8
1997	52	34.8
2025	5	5

For each year, a bar from the first to the last day at Mombasa meeting 10 mm (0.39 in).

First to last qualifying date each year at Mombasa
Year	First date	Last date
1957	1957-01-07	1957-12-07
1958	1958-03-16	1958-12-05
1959	1959-03-03	1959-12-19
1960	1960-01-23	1960-07-26
1961	1961-02-03	1961-12-11
1962	1962-01-03	1962-12-22
1963	1963-03-03	1963-11-17
1964	1964-03-26	1964-12-24
1965	1965-01-01	1965-11-17
1966	1966-01-21	1966-11-06
1967	1967-02-07	1967-11-16
1968	1968-02-28	1968-12-08
1969	1969-02-24	1969-11-20
1970	1970-04-19	1970-10-01
1971	1971-03-21	1971-12-23
1972	1972-01-03	1972-11-20
1973	1973-04-03	1973-11-25
1974	1974-01-15	1974-11-10
1975	1975-04-07	1975-12-04
1976	1976-04-11	1976-12-02
1977	1977-03-16	1977-12-24
1978	1978-01-16	1978-12-13
1979	1979-01-06	1979-12-19
1980	1980-03-30	1980-11-17
1981	1981-03-15	1981-12-27
1982	1982-03-31	1982-12-23
1983	1983-02-15	1983-12-24
1984	1984-04-21	1984-12-30
1985	1985-02-06	1985-12-07
1986	1986-04-03	1986-12-25
1987	1987-01-04	1987-11-06
1988	1988-03-18	1988-12-27
1989	1989-01-16	1989-12-02
1990	1990-01-02	1990-12-02
1991	1991-03-11	1991-12-01
1992	1992-04-19	1992-12-31
1993	1993-01-04	1993-12-01
1994	1994-03-15	1994-12-20
1995	1995-03-02	1995-11-20
1996	1996-02-27	1996-11-23
1997	1997-04-07	1997-12-29
2025	2025-03-26	2025-06-09

Every Fixed Threshold

Fixed thresholds at Mombasa
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	1	0	n/a	39
35 C (95 F): Days	1	0	n/a	4
90 F (32.2 C): Days	1	0	n/a	34
20 C (68 F): Tropical nights (min	2	0	n/a	121
25 C (77 F): Days with min	1	0	n/a	29
10 mm (0.39 in): Days with 10 mm or more rain	42	54	1968	5
25 mm (0.98 in): Days with 25 mm or more rain	42	24	1968	1
50 mm (1.97 in): Days with 50 mm or more rain	40	12	1968	11
100 mm (3.94 in): Days with 100 mm or more rain	13	3	1972	2
200 mm (7.87 in): Days with 200 mm or more rain	1	0	n/a	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2025.

Download the Data

Data for Mombasa 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). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Mombasa Threshold Days by Year (KE000063820)

Key Facts for Mombasa Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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