Your June weather guide
HotWeather in Mombasa in June
June is a good choice for Mombasa if you want warm sea and reliable warmth, but not if dry weather is your priority. Daytime highs average 27°C, the sea is around 27°C and there are about 17 rainy days. For a UK traveller, that means swimming weather with a real chance of rain interrupting outdoor plans. Go if you are happy to keep your days flexible; choose another month if sunshine matters more than warmth.
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
- 26.9°C
- 9 in 10 days stay below 28°C
- Average night-time low
- 23.2°C
- coldest 10% of nights: 22°C or lower
- Compared with London
- +7.3°C
- London averages 19.6°C in June
- Sea temperature
- 26.8°C
- year to year: 26°C to 27°C
- Sunshine per day (est.)
- 5.1h
- 43% of 11.8 h of daylight
- Rainy days (1 mm+)
- 17
- 69 mm over the month
- Humidity
- 79%
- Days over 25°C
- 98%
- none over 30°C
- Record high 1991-2020
- 29.4°C
- 2015-06-06
- Record low 1991-2020
- 20.9°C
- 1993-06-29
- 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 June compares
June is the 10th warmest month of the year in Mombasa and ranks 66th of 134 destinations we compare for June - see where else is hot in June. Against London's average high of 19.6°C in June, Mombasa is 7.3°C warmer by day and 11.9°C warmer at night.
Daytime and night-time in June
The typical June day in Mombasa peaks at 26.9°C, but that is an average: the warmest 10% of days reach 28.0°C or more. About 98% of days top 25°C. Nights average 23.2°C; one night in ten drops to 22.2°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest June day here reached 29.4°C (2015-06-06) and the coldest night 20.9°C (1993-06-29).
Rain in June
Wet (more than 8 rainy days): about 17 days with 1 mm or more, 69 mm in total. Year to year it varies a lot - the wettest June was 2018 with 190 mm, the driest 1995 with 12 mm. Humidity averages 79%.
Sea temperature in June
The sea averages 26.8°C - warm enough to swim (22°c+). Depending on the year it ranges from 26.4°C to 27.2°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 06:25 and sets about 18:18 local time in mid-June. Average cloud cover is 57%.
Is June 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 humidity as the catch
June sits towards the cooler end of Mombasa's year, but it is still hot by UK standards. Average daytime highs are 26.9°C, compared with London's 19.6°C, so the difference should be noticeable without the temperature needing to reach 30°C. The catch is humidity at 79%: the air can feel muggy even when the thermometer looks manageable. Choose loose, breathable clothing and leave room for a break from outdoor activity around midday. Nights average 23.2°C, so do not expect a crisp evening to clear the heat. Light evening clothes make more sense than packing as you would for a British summer.
Expect rain, but not a write-off
Rain is a regular consideration in June, with about 17 days recording measurable rainfall. That makes fixed plans for a wholly outdoor holiday a gamble, although a rainy day does not necessarily mean a day spent inside. Sunshine averages 5.1 hours within 11.8 hours of daylight, so there is still scope for time outdoors without expecting clear skies throughout. Keep swimming and outdoor plans movable, and pack a light waterproof that will not feel too heavy in the humidity. June suits travellers who can accept mixed skies; it is less convincing if a long-haul journey needs to deliver dependable sunshine.
The sea is a stronger draw than the sunshine
Sea temperature averages 26.8°C, making swimming a clear reason to consider June despite the wet weather. The year-to-year range of 26°C to 27°C suggests little variation in how warm the water feels. That is useful if your main aim is a warm-water holiday rather than spending every available hour in direct sunshine. Water temperature alone does not tell you about swimming conditions, so judge those locally before entering. Overall, June offers a reasonable trade-off for travellers who prioritise warmth in and out of the water. It is harder to recommend to anyone whose main requirement is dry, consistently sunny weather.
A little perspective
Mombasa through the year
June 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% |
| JuneSelected | 26.9°C | 23.2°C | 26.8°C | 5.1 | 69 | 17 | 98% |
| July | 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 June
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
Indonesia · 27°C by day · sea 27°C
Bali
Tanzania · 27°C by day · sea 27°C
Zanzibar
Seychelles · 27°C by day · sea 27°C
Seychelles
Grenada · 28°C by day · sea 28°C
Grenada
Barbados · 28°C by day · sea 28°C
Barbados
A little more detail
Mombasa in June FAQs
Plain answers, grounded in the averages.
Is Mombasa hot in June?
Mombasa is hot in June: the average daytime high is 26.9°C and nights average 23.2°C. About 98% of June days reach 25°C or more.
Can you swim in the sea in Mombasa in June?
The sea around Mombasa averages 26.8°C in June, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 26°C to 27°C depending on the year.
How much does it rain in Mombasa in June?
Mombasa sees about 17 rainy days (1 mm or more) and 69 mm of rain in a typical June. The wettest June between 1991 and 2020 was 2018 (190 mm) and the driest was 1995 (12 mm).
How sunny is Mombasa in June?
Mombasa gets around 5.1 hours of sunshine a day in June out of 11.8 hours of daylight (estimated from average cloud cover).
How does Mombasa compare with the UK in June?
Mombasa is on average 7.3°C warmer than London by day in June (26.9°C against 19.6°C).
What is the hottest June on record in Mombasa?
Between 1991 and 2020 the hottest June day in Mombasa reached 29.4°C on 2015-06-06, and the coldest night dropped to 20.9°C on 1993-06-29.
How much warmer is Mombasa than London in June?
Mombasa's average daytime high is 26.9°C, against 19.6°C in London - a difference of 7.3°C. It is a clear step up in warmth, with humid air and warm nights making lightweight clothing useful beyond the middle of the day.
How long is the flight from London?
The flight from London is about 9 h 48 min, so this is a long-haul choice. June makes more sense if warm sea and warm evenings justify that journey for you, rather than relying on dry weather throughout your stay.
Which other months should I consider?
February, January and September are the strongest alternatives for overall weather. June is still suitable for warmth and swimming, but its frequent rainy days make it a less straightforward choice if weather is the deciding factor.
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