Mombasa weather by month & the best time to visit
Kenya · coastal city break · tropical — wet & dry seasons climate

The best time to visit Mombasa is August — its sunniest month (Sunshine Score 90/100), with July and September close behind. Mombasa averages about 2,799 hours of sunshine a year. Daytime highs around 29°C / 84°F and roughly 29 mm of rain in August.
When is the best time to visit Mombasa?
For sunshine, the best time to visit Mombasa is August, then July and September. The dullest month is February (65/100, 15 mm of rain). The full month-by-month picture is in the table below.
How sunny is Mombasa?
Mombasa gets a lot of sun: around 2,799 hours a year. August (90/100) is noticeably better than February (65). It ranks #9 of 11 destinations in Kenya for annual sunshine, below the national median of 3,025 hours. Rain has a clear season: the wettest stretch, around May, carries about 47% of the annual 895 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 73 | 34° / 93°F | 23° / 73°F | 24 mm | 11 | 29° / 84°F |
| February | 65 | 35° / 95°F | 23° / 73°F | 15 mm | 12 | 30° / 86°F |
| March | 67 | 34° / 93°F | 24° / 75°F | 62 mm | 12 | 31° / 88°F |
| April | 72 | 31° / 88°F | 24° / 75°F | 129 mm | 10 | 30° / 86°F |
| May | 68 | 30° / 86°F | 23° / 73°F | 217 mm | 9 | 28° / 82°F |
| June | 82 | 29° / 84°F | 22° / 72°F | 74 mm | 8 | 28° / 82°F |
| July | 89 | 29° / 84°F | 21° / 70°F | 36 mm | 8 | 27° / 81°F |
| August | 90 | 29° / 84°F | 21° / 70°F | 29 mm | 9 | 27° / 81°F |
| September | 89 | 31° / 88°F | 21° / 70°F | 38 mm | 11 | 27° / 81°F |
| October | 78 | 32° / 90°F | 22° / 72°F | 98 mm | 11 | 27° / 81°F |
| November | 76 | 32° / 90°F | 23° / 73°F | 104 mm | 11 | 28° / 82°F |
| December | 75 | 33° / 91°F | 23° / 73°F | 69 mm | 11 | 29° / 84°F |
Sea temperature in Mombasa by month
The sea off Mombasa is warmest in March at around 31°C / 88°F, and coolest in July at 27°C / 81°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Mombasa compares month by month: Mombasa vs Dar es Salaam · Mombasa vs Nairobi · Mombasa vs Mogadishu · Mombasa vs Zanzibar · all comparisons
Mombasa: questions and answers
What kind of destination is Mombasa?
Mombasa is a coastal city break in Kenya with a tropical — wet & dry seasons climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Mombasa get a year?
Mombasa gets about 2,799 hours of sunshine a year, at its best around August.
When is the best time to visit Mombasa?
The sunniest time to visit Mombasa is August, when the Sunshine Score peaks at 90/100 (with July and September close behind). Expect daytime highs around 29°C / 84°F.
What is the least sunny month in Mombasa?
February is the least sunny month in Mombasa, scoring 65/100 with about 15 mm of rain.
What is the sea temperature in Mombasa?
The sea in Mombasa ranges from about 27°C (July) to 31°C (March). Month-by-month sea temperatures are on this page.
How strong is the sun in Mombasa?
The typical midday UV index in Mombasa peaks around 12 (extreme) in February, easing to about 8 (very high) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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