Mombasa weather in July

Name: Mombasa
Address: KE

In July, Mombasa has daytime highs averaging 26 °C, nights around 22 °C, with 15 wet days, and a sea temperature of 26 °C. Figures are 1991–2020 climate normals.

26.3°C Average high
22.4°C Average low
15days Wet days
53mm Rainfall
25.8°C Sea temperature
12h Daylight

Daily temperatures through July

Daily highDaily low Day of month on the horizontal axis. Highs peak at 26.5 °C and lows bottom out at 22.1 °C.

How July develops

Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.

Days	Avg high	Avg low	Chance of rain
1–10 July	26.3 °C	22.6 °C	51 %
11–20 July	26.2 °C	22.4 °C	51 %
21–31 July	26.3 °C	22.3 °C	48 %

Chance of a wet day (over 1 mm) by date in July. Wettest date over the 30 years: July 1, at 63 %. Single dates are noisy — read the shape, not the spikes.

What to expect

Measure	Typical July	Share of the month
Days above 25 °C	29 of 31	94 %
Days above 30 °C	0 of 31	0 %
Days below 0 °C	0 of 31	0 %
Days with more than 1 mm rain	15 of 31	50 %

Conditions in July

Measure	Average
Mean temperature	24 °C
Record high (1991–2020)	29 °C
Record low (1991–2020)	20 °C
Relative humidity	79 %
Wind speed	22 km/h
Cloud cover	57 %

Where Mombasa ranks in July

Ranking	Position	Value
Warmest sea temperatures in Africa in July	46thof 50	26 °C

July compared with the months around it

Month	Avg high	Rainfall	Cloud
May	27.8 °C	176 mm	63 %
June	26.9 °C	69 mm	57 %
July	26.3 °C	53 mm	57 %
August	26.6 °C	45 mm	52 %
September	27.6 °C	45 mm	46 %

See all twelve months for Mombasa

July is the 12th warmest month here.
It is the 5th driest month of the year.
It ranks 8th for least cloud cover.
Days last about 12 hours from sunrise to sunset.
It rains on 15 of 31 days — 50 % of the month.
Nights are about 3.8 °C cooler than the middle of the day.
The hottest July day on record since 1991 reached 29 °C, 2.5 °C above the usual daytime high.
Beach score: 74 / 100 — see how this is calculated.

Nearby destinations in July

Destination	Avg high	Wet days	Sea
Mombasa	26 °C	15	26
Jomvu	27 °C	14	26
Matuga	25 °C	21	26
Tanga	27 °C	12	26
Zanzibar	27 °C	7	26
Moshi	23 °C	5	–
Dar es Salaam	27 °C	6	26
Kibaha	28 °C	5	–
Arusha	21 °C	2	–

QuestionsJuly in Mombasa, answered

How warm is Mombasa in July?

Daily highs average 26 °C and nights fall to about 22 °C, a spread of 3.8 °C between afternoon and dawn. That makes July the 12th warmest month of the year here.

Does it rain much in Mombasa in July?

July averages 53 mm of rain, spread over about 15 of the 31 days — 50 % of the month. Cloud cover averages 57 % of the sky.

Is the sea warm enough to swim in July?

The sea averages 26 °C off Mombasa in July. Most people find water below 20 °C bracing and above 25 °C comfortable for a long swim; this figure is a monthly surface average, so a sheltered bay on a still afternoon can be warmer.

How long are the days in July?

Mombasa averages 12 hours between sunrise and sunset in July. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.