Nairobi · AutumnMonth summary
Nairobi weather in September
✅ Good
🌡️ Temperature min / max
57°F – 79°F
🌧 Rainy days
25% of days
☀️ Sunshine
10.7h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
8.4/10
📅 📅 Best month
February (8.7/10)
Quick decision
Should you visit Nairobi in September?
✅ Good
✅ Yes if: you want good weather with lower prices than peak season.
❌ No if: you need guaranteed perfect weather — some mixed days are possible.
Our take: Nairobi in September: 79°F and 10.7h of sunshine. Decent, but not the peak.
By trip type
Nairobi in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : — No sea access
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
Autumn in Nairobi is often underrated: 26°F, golden light and declining crowds. An interesting window. Rain risk remains low (25% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if February (8.7/10) remains theoretically better.
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Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 59°F | 79°F | 30% | 0.1in | 11.7h | 8.3/10 |
| 🌤️ February | 59°F | 82°F | 28% | 0.1in | 11.8h | 8.7/10 |
| 🌤️ March | 61°F | 82°F | 43% | 0.1in | 11.6h | 8.1/10 |
| 🌦️ April | 61°F | 77°F | 86% | 0.2in | 10.3h | 7.0/10 |
| 🌦️ May | 59°F | 75°F | 60% | 0.1in | 10.8h | 7.3/10 |
| 🌤️ June | 55°F | 73°F | 30% | 0.0in | 10.2h | 7.8/10 |
| 🌤️ July | 55°F | 73°F | 15% | 0.0in | 8.9h | 8.0/10 |
| 🌤️ August | 55°F | 75°F | 26% | 0.0in | 9.1h | 7.9/10 |
| 🌤️ September | 57°F | 79°F | 25% | 0.0in | 10.7h | 8.4/10 |
| 🌤️ October | 59°F | 79°F | 47% | 0.1in | 11.0h | 7.7/10 |
| 🌧️ November | 59°F | 75°F | 76% | 0.2in | 10.2h | 7.0/10 |
| 🌤️ December | 59°F | 77°F | 55% | 0.1in | 11.2h | 7.5/10 |
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, Nairobi averages 79°F, 25% rainy days and 10.7h of sunshine per day. Overall weather score: 8.4/10.
See methodology →
Comparison
September vs February (best month)
The best month is February (score 8.7/10). Difference:
- 🌡️ Max temperature : +2°F
- 🌧 Rainy days : +3%
- ☀️ Sunshine : +1.1h/day
FAQ
FAQ — Nairobi in September
Is September a good time to visit Nairobi?
September is an excellent time to visit Nairobi (score 8.4/10). With 79°F, 10.7h of sunshine and 25% rain, conditions are very favourable.
What to do in Nairobi in September?
With 79°F and 10.7h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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