Mombasa · AutumnMonth summary
Mombasa weather in September
✅ Good
🌡️ Temperature min / max
23°C – 27°C
🌧 Rainy days
70% of days
☀️ Sunshine
11.4h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.4/10
📅 📅 Best month
January (8.2/10)
Quick decision
Should you visit Mombasa in September?
✅ Good
✅ Yes if: you're willing to accept showers in exchange for lower prices and fewer tourists.
❌ No if: you're planning 100% outdoor activities — rain is frequent.
Our take: Mombasa in September: 27°C and 11.4h of sunshine. Decent, but not the peak.
By trip type
Mombasa in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
🎯 Harvest season — fresh local produce at markets and restaurants Autumn in Mombasa is often underrated: 27°C, golden light and declining crowds. An interesting window. With 70% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. January (8.2/10) is significantly better if possible.
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All months for Mombasa
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 25°C | 30°C | 29% | 1.3 | 11.6h | 8.2/10 |
| 🌤️ February | 25°C | 31°C | 27% | 0.8 | 11.6h | 8.1/10 |
| 🌤️ March | 26°C | 31°C | 52% | 2.6 | 11.2h | 7.4/10 |
| 🌦️ April | 25°C | 29°C | 90% | 9.1 | 11.0h | 7.0/10 |
| ⛅ May | 24°C | 28°C | 76% | 8.2 | 11.0h | 7.2/10 |
| ⛅ June | 24°C | 27°C | 68% | 3.7 | 11.0h | 7.4/10 |
| ⛅ July | 23°C | 26°C | 71% | 2.7 | 11.0h | 7.3/10 |
| ⛅ August | 23°C | 26°C | 70% | 2.1 | 11.0h | 7.4/10 |
| ⛅ September | 23°C | 27°C | 70% | 2.4 | 11.4h | 7.4/10 |
| ⛅ October | 24°C | 28°C | 65% | 3.6 | 11.9h | 7.6/10 |
| ⛅ November | 24°C | 29°C | 76% | 4.1 | 12.0h | 7.2/10 |
| ⛅ December | 25°C | 30°C | 67% | 3.6 | 11.8h | 7.3/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Mombasa averages 27°C, 70% rainy days and 11.4h of sunshine per day. Overall weather score: 7.4/10.
See methodology →
Comparison
September vs January (best month)
The best month is January (score 8.2/10). Difference:
- 🌡️ Max temperature : +3°C
- 🌧 Rainy days : -41%
- ☀️ Sunshine : +0.2h/day
FAQ
FAQ — Mombasa in September
Is September a good time to visit Mombasa?
September is an acceptable time for Mombasa (score 7.4/10). Conditions are decent but not optimal — consider January (8.2/10) if possible.
Does it rain a lot in Mombasa in September?
Yes, 70% of days see rain in September. Plan some indoor activities as backup.
Accommodation
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