Your July weather guide
HotWeather in Mombasa in July
July is a good choice for Mombasa if you want warm days and a swimmable sea without intense daytime heat, but not if dry weather is your priority. Average highs are 26.3°C, the sea is 25.7°C and rain falls on about 17 days. For a UK traveller, that means reliable warmth rather than reliable sunshine. It suits a relaxed holiday with flexible outdoor plans, provided cloudy spells and wet days would not spoil the trip.
Long-term climate averages for Mombasa, not a forecast · 1991-2020
Mombasa, month by month
Your snapshot
At a glance
The useful details for Mombasa.
- Average daytime high
- 26.3°C
- 9 in 10 days stay below 27°C
- Average night-time low
- 22.5°C
- coldest 10% of nights: 22°C or lower
- Compared with London
- +4.5°C
- London averages 21.8°C in July
- Sea temperature
- 25.7°C
- year to year: 25°C to 26°C
- Sunshine per day (est.)
- 5.1h
- 43% of 11.8 h of daylight
- Rainy days (1 mm+)
- 17
- 53 mm over the month
- Humidity
- 79%
- Days over 25°C
- 95%
- none over 30°C
- Record high 1991-2020
- 28.8°C
- 2011-07-02
- Record low 1991-2020
- 20.3°C
- 2001-07-19
- Flight from London
- ≈ 9 h 48 min
- 7209 km, long-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How July compares
July is the 12th warmest month of the year in Mombasa and ranks 109th of 134 destinations we compare for July - see where else is hot in July. Against London's average high of 21.8°C in July, Mombasa is 4.5°C warmer by day and 9.0°C warmer at night.
Daytime and night-time in July
The typical July day in Mombasa peaks at 26.3°C, but that is an average: the warmest 10% of days reach 27.2°C or more. About 95% of days top 25°C. Nights average 22.5°C; one night in ten drops to 21.5°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest July day here reached 28.8°C (2011-07-02) and the coldest night 20.3°C (2001-07-19).
Rain in July
Wet (more than 8 rainy days): about 17 days with 1 mm or more, 53 mm in total. Year to year it varies a lot - the wettest July was 2018 with 115 mm, the driest 2016 with 20 mm. Humidity averages 79%.
Sea temperature in July
The sea averages 25.7°C - warm enough to swim (22°c+). Depending on the year it ranges from 25.3°C to 26.1°C. For the warmest sea here, come in April (28.8°C).
Sunshine and daylight
Around 5.1 hours of sunshine a day (estimated from cloud cover), 11.8 hours of daylight: the sun rises about 06:30 and sets about 18:25 local time in mid-July. Average cloud cover is 57%.
Is July a good time to visit Mombasa?
It is a reasonable choice: hot days but expect showers. The best months for Mombasa on our scoring are February, January, September; months averaging 25°C or more: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.
Warm days, with little cooling overnight
July is Mombasa's coolest month, but that is relative: daytime temperatures average 4.5°C above London's July high. Days reach 25°C on 95% of occasions, so light summer clothing should be your default rather than something packed hopefully. Nights average 22.5°C, leaving evenings warm enough for lightweight clothes too. The catch is humidity at 79%, which can make the warmth feel sticky even without very high temperatures. Choose loose, breathable fabrics and accommodation where you can cool down comfortably at night. This is a sensible month if you dislike fierce heat, though it is not a cool-weather break and midday plans still call for shade and sun protection.
Plan around rain rather than expecting full days of sun
The main compromise is how often rain features, not a lack of warmth. With about 17 rainy days, it makes sense to keep outdoor plans movable and carry a light waterproof rather than assume each day will stay dry. Sunshine averages about 5.1 hours within 11.8 hours of daylight, so there is time for outdoor plans, but sunshine does not fill the day. These averages do not tell you when rain will arrive or how long each spell will last. Avoid building the holiday around uninterrupted sunbathing. July works better if you are happy to swim when conditions suit and change plans when the weather turns.
A little perspective
Mombasa through the year
July is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| Januarybest | 30.9°C | 24.8°C | 27.4°C | 5.4 | 29 | 6 | 100% |
| Februarybest | 31.6°C | 24.7°C | 27.5°C | 5.4 | 20 | 5 | 100% |
| March | 31.4°C | 25.1°C | 28.6°C | 5.1 | 64 | 16 | 100% |
| April | 29.6°C | 24.7°C | 28.8°C | 4.1 | 129 | 23 | 100% |
| May | 27.8°C | 24.0°C | 27.9°C | 4.4 | 176 | 21 | 98% |
| June | 26.9°C | 23.2°C | 26.8°C | 5.1 | 69 | 17 | 98% |
| JulySelected | 26.3°C | 22.5°C | 25.7°C | 5.1 | 53 | 17 | 95% |
| August | 26.6°C | 22.3°C | 25.4°C | 5.7 | 45 | 16 | 99% |
| Septemberbest | 27.6°C | 22.7°C | 25.6°C | 6.5 | 45 | 15 | 100% |
| October | 28.5°C | 23.3°C | 26.4°C | 5.6 | 73 | 16 | 100% |
| November | 29.4°C | 23.8°C | 27.4°C | 5.2 | 85 | 20 | 100% |
| December | 30.4°C | 24.4°C | 27.7°C | 5.9 | 73 | 17 | 100% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in July
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
Indonesia · 26°C by day · sea 26°C
Bali
Tanzania · 27°C by day · sea 26°C
Zanzibar
Seychelles · 26°C by day · sea 26°C
Seychelles
Bermuda · 27°C by day · sea 27°C
Bermuda
United States · 28°C by day · sea 26°C
Hawaii
A little more detail
Mombasa in July FAQs
Plain answers, grounded in the averages.
Is Mombasa hot in July?
Mombasa is hot in July: the average daytime high is 26.3°C and nights average 22.5°C. About 95% of July days reach 25°C or more.
Can you swim in the sea in Mombasa in July?
The sea around Mombasa averages 25.7°C in July, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 25°C to 26°C depending on the year.
How much does it rain in Mombasa in July?
Mombasa sees about 17 rainy days (1 mm or more) and 53 mm of rain in a typical July. The wettest July between 1991 and 2020 was 2018 (115 mm) and the driest was 2016 (20 mm).
How sunny is Mombasa in July?
Mombasa gets around 5.1 hours of sunshine a day in July out of 11.8 hours of daylight (estimated from average cloud cover).
How does Mombasa compare with the UK in July?
Mombasa is on average 4.5°C warmer than London by day in July (26.3°C against 21.8°C).
What is the hottest July on record in Mombasa?
Between 1991 and 2020 the hottest July day in Mombasa reached 28.8°C on 2011-07-02, and the coldest night dropped to 20.3°C on 2001-07-19.
Is the sea warm enough for swimming in July?
Yes. The sea averages 25.7°C, with a year-to-year range of 25°C to 26°C, making it warm enough for swimming. Sea temperature is a strong point for July, although warm water alone does not tell you whether conditions are safe on the day.
Is July the best month to visit Mombasa?
Not overall: February, January and September are stronger choices. July still suits travellers who prefer less intense daytime heat and do not mind frequent rain. Choose it for warmth and swimming rather than an expectation of uninterrupted sunshine.
Is the July weather worth the long flight from London?
The flight from London is about 9 h 48 min, so this is a long-haul commitment for mixed weather. July makes sense if warm evenings and a swimmable sea matter most; it is less convincing if dependable sunshine is the main reason for travelling.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Mombasa. Sea temperature from the nearest 5 km sea cell, 2.6 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C