Your October weather guide
HotWeather in Mombasa in October
October is a good choice for Mombasa if you want hot weather and warm swimming water, but not if dry days are your priority. Daytime highs average 28.5°C, nights stay around 23.3°C and the sea is a comfortable 26.4°C. For a UK traveller, that means a clear change from autumn at home, with little need for warm clothing. The catch is frequent rain and humid air, so keep your outdoor plans flexible.
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
- 28.5°C
- 9 in 10 days stay below 30°C
- Average night-time low
- 23.3°C
- coldest 10% of nights: 22°C or lower
- Compared with London
- +13.9°C
- London averages 14.6°C in October
- Sea temperature
- 26.4°C
- year to year: 26°C to 27°C
- Sunshine per day (est.)
- 5.6h
- 46% of 12.1 h of daylight
- Rainy days (1 mm+)
- 16
- 73 mm over the month
- Humidity
- 79%
- Days over 25°C
- 100%
- 9% over 30°C
- Record high 1991-2020
- 32.0°C
- 2001-10-31
- Record low 1991-2020
- 19.7°C
- 2011-10-25
- 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 October compares
October is the 7th warmest month of the year in Mombasa and ranks 19th of 134 destinations we compare for October - see where else is hot in October. Against London's average high of 14.6°C in October, Mombasa is 13.9°C warmer by day and 14.9°C warmer at night.
Daytime and night-time in October
The typical October day in Mombasa peaks at 28.5°C, but that is an average: the warmest 10% of days reach 29.9°C or more. About 100% of days top 25°C and 1 in 12 pass 30°C. Nights average 23.3°C; one night in ten drops to 22.4°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest October day here reached 32.0°C (2001-10-31) and the coldest night 19.7°C (2011-10-25).
Rain in October
Wet (more than 8 rainy days): about 16 days with 1 mm or more, 73 mm in total. Year to year it varies a lot - the wettest October was 2019 with 300 mm, the driest 2016 with 15 mm. Humidity averages 79%, which makes the heat feel heavier than the thermometer suggests.
Sea temperature in October
The sea averages 26.4°C - warm enough to swim (22°c+). Depending on the year it ranges from 25.8°C to 27.0°C. For the warmest sea here, come in April (28.8°C).
Sunshine and daylight
Around 5.6 hours of sunshine a day (estimated from cloud cover), 12.1 hours of daylight: the sun rises about 06:01 and sets about 18:13 local time in mid-October. Average cloud cover is 54%.
Is October 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.
Hot days without much cooling after dark
Mombasa feels much warmer than London in October, where the average daytime high is 14.6°C. Here, the heat is dependable: days reach 25°C throughout the month, although only 8% reach 30°C. That suits travellers who want warmth without needing exceptionally high temperatures. Humidity of 79% is the more important catch, making light, loose clothing a sensible choice and a slower pace around midday appealing. Evenings remain warm rather than offering much relief, so breathable nightwear and accommodation with cooling are worth prioritising. Pack mainly for heat, with sun protection for time outdoors rather than treating cloud as a reason to go without it.
Allow for rain rather than expecting clear skies
Rain is a regular part of October, with about 16 rainy days, so this is not the month to choose for the best chance of dry weather. That does not mean every wet day is a write-off, but the figures do not tell you when rain will arrive or how long it will last. Keep swimming and other outdoor plans movable, and carry a light waterproof that will not feel too heavy in the humidity. Sunshine averages about 5.6 hours within 12.1 hours of daylight: there is scope for sunny spells, but expecting clear skies throughout the day would set the wrong expectations.
A little perspective
Mombasa through the year
October 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% |
| 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% |
| OctoberSelected | 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 October
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Mombasa in October FAQs
Plain answers, grounded in the averages.
Is Mombasa hot in October?
Mombasa is hot in October: the average daytime high is 28.5°C and nights average 23.3°C. About 100% of October days reach 25°C or more.
Can you swim in the sea in Mombasa in October?
The sea around Mombasa averages 26.4°C in October, 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 October?
Mombasa sees about 16 rainy days (1 mm or more) and 73 mm of rain in a typical October. The wettest October between 1991 and 2020 was 2019 (300 mm) and the driest was 2016 (15 mm).
How sunny is Mombasa in October?
Mombasa gets around 5.6 hours of sunshine a day in October out of 12.1 hours of daylight (estimated from average cloud cover).
How does Mombasa compare with the UK in October?
Mombasa is on average 13.9°C warmer than London by day in October (28.5°C against 14.6°C).
What is the hottest October on record in Mombasa?
Between 1991 and 2020 the hottest October day in Mombasa reached 32.0°C on 2001-10-31, and the coldest night dropped to 19.7°C on 2011-10-25.
Is the sea warm enough for swimming in October?
Yes. The sea averages 26.4°C, with a year-to-year range of 26°C to 27°C, so water temperature is well suited to swimming. Warm water is a clear reason to choose October, even though rain may affect your timing.
How long is the flight from London?
The flight from London is about 9 h 48 min, making this a long-haul trip. October offers a substantial change from UK autumn temperatures, but weigh that journey against your tolerance for humid weather and frequent rain.
Is October the best month to visit Mombasa?
Not for the strongest overall weather balance: February, January and September rate better. October still suits travellers whose priorities are hot days and a warm sea, provided they are comfortable adjusting outdoor plans around rain.
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