Mombasa
Kenya · Africa
Year-round range: 71°F to 91°F
September
Excellent conditions this month
Your monthly fit score
Comfort fit by month.
Climate details▼
Temperature
Average highs and lows.
September is warm and sunny — good beach and outdoor weather.
Shaded band = typical daily swing (P10 of night lows to P90 of afternoon peaks) — spans wider than avg high/low lines because it captures day-to-day variation.
| = SepRainfall
Monthly rain and rain days.
September has moderate rainfall — occasional showers but mostly manageable.
Sunshine
Average hours of bright sun per day.
September is sunny overall, with occasional showers to plan around.
Clear sky
Clear-sky share is the inverse of average cloud cover (100% minus cloud cover). Band labels follow standard meteorological categories; distribution within each band varies by day.
Air comfort by month
Warm, humid air is the norm here — typical for a tropical beach destination.
September has the expected warm, humid beach air — rain, cloud, and sea conditions matter more.
Time-of-day patterns
Typical hourly rhythm for September.
Temperature by hour
Temperature by hour and month
Typical temperature through the day across the year (1996-2025 normals, local time). Shaded cells are nighttime.
In September, afternoons reach about 83° and nights settle near 73°.
▶Full month-by-month data
| Month | High °F | Low °F | Rain days | Rain (in) | Sun h/day | Humidity | Sea °F |
|---|---|---|---|---|---|---|---|
| Jan | 90°F | 76°F | 5 | 0.5in | 7.1h | 72.28571428571428% | 83°F |
| Feb | 91°F | 76°F | 3 | 0.3in | 7.2h | 71% | 83°F |
| Mar | 91°F | 76°F | 13 | 2.4in | 6.7h | 73% | 84°F |
| Apr | 86°F | 76°F | 23 | 5.1in | 5.5h | 80% | 85°F |
| May | 83°F | 75°F | 22 | 10in | 5.9h | 81.57142857142856% | 83°F |
| Jun | 81°F | 73°F | 14 | 3.2in | 6.7h | 77.99999999999999% | 81°F |
| Jul | 80°F | 71°F | 15 | 2.4in | 6.7h | 77.99999999999999% | 79°F |
| Aug | 81°F | 71°F | 16 | 2.2in | 7.4h | 77.85714285714285% | 78°F |
| Sep | 83°F | 72°F | 14 | 2.4in | 8.2h | 76% | 78°F |
| Oct | 85°F | 73°F | 13 | 5.0in | 7.3h | 76.85714285714286% | 80°F |
| Nov | 87°F | 74°F | 19 | 4.6in | 6.9h | 78.85714285714285% | 82°F |
| Dec | 88°F | 75°F | 15 | 2.6in | 7.7h | 76.28571428571428% | 83°F |