Nairobi
September
Weather in Nairobi for September 2025
Your guide to Nairobi weather in September - trends and predictions
In general, the average temperature in Nairobi at the beginning of September is 25 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 27.4 °C by the end of September.
The climate of Nairobi in September is notably wet, with an average of 12 rainy days.
Is September a good time to visit Nairobi? check out the best time to travel to Nairobi page.
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18
Dry days
12
Rainy days
0
Snow days
26°/15°
Temperatures
21 km/h
Avg max wind
60 %
Avg humidity
Nairobi in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  24° | 2 24° | 3 25° | 4  23° | 5 27° | 6 25° | 7  27° |
| 8 24° | 9 25° | 10 26° | 11 28° | 12 28° | 13  26° | 14 27° |
| 15 26° | 16 27° | 17 28° | 18 28° | 19 28° | 20 28° | 21 27° |
| 22 27° | 23 27° | 24 27° | 25 26° | 26 28° | 27 29° | 28  28° |
| 29 27° | 30 27° |
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Temperatures trend during September in Nairobi
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Patchy rain possible | 24° /14° | 0.8 mm | 6 | |
| 2 Sept. | Patchy rain possible | 24° /14° | 0.8 mm | 6 | |
| 3 Sept. | Patchy rain possible | 25° /14° | 0.5 mm | 6 | |
| 4 Sept. | Partly cloudy | 23° /13° | 0.2 mm | 6 | |
| 5 Sept. | Patchy rain possible | 27° /13° | 0.2 mm | 7 | |
| 6 Sept. | Patchy rain possible | 25° /14° | 1.8 mm | 6 | |
| 7 Sept. | Moderate rain at times | 27° /15° | 9.1 mm | 7 | |
| 8 Sept. | Moderate or heavy rain shower | 24° /14° | 10 mm | 7 | |
| 9 Sept. | Light rain shower | 25° /14° | 0.6 mm | 7 | |
| 10 Sept. | Partly cloudy | 26° /14° | 0.1 mm | 8 | |
| 11 Sept. | Patchy rain possible | 28° /14° | 0.2 mm | 7 | |
| 12 Sept. | Partly cloudy | 28° /15° | 0 mm | 8 | |
| 13 Sept. | Cloudy | 26° /15° | 0 mm | 7 | |
| 14 Sept. | Partly cloudy | 27° /14° | 0 mm | 8 | |
| 15 Sept. | Cloudy | 26° /13° | 0 mm | 7 | |
| 16 Sept. | Cloudy | 27° /13° | 0 mm | 7 | |
| 17 Sept. | Cloudy | 28° /15° | 0 mm | 7 | |
| 18 Sept. | Patchy rain possible | 28° /15° | 0.1 mm | 7 | |
| 19 Sept. | Patchy rain possible | 28° /15° | 1.2 mm | 7 | |
| 20 Sept. | Patchy rain possible | 28° /14° | 0.3 mm | 7 | |
| 21 Sept. | Patchy rain possible | 27° /15° | 0.1 mm | 7 | |
| 22 Sept. | Patchy rain possible | 27° /16° | 0.3 mm | 7 | |
| 23 Sept. | Patchy rain possible | 27° /14° | 0 mm | 7 | |
| 24 Sept. | Patchy rain possible | 27° /14° | 0 mm | 7 | |
| 25 Sept. | Partly cloudy | 26° /15° | 0 mm | 7 | |
| 26 Sept. | Partly cloudy | 28° /14° | 0.1 mm | 7 | |
| 27 Sept. | Patchy rain possible | 29° /14° | 0 mm | 7 | |
| 28 Sept. | Overcast | 28° /14° | 0 mm | 7 | |
| 29 Sept. | Patchy rain possible | 27° /15° | 1.6 mm | 7 | |
| 30 Sept. | Patchy rain possible | 27° /17° | 3.4 mm | 7 | |
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Important Notice
Our weather forecast for Nairobi in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Nairobi forecast closer to your planned date for the most up-to-date weather information.
Nairobi in September - FAQ
What are the expected maximum and minimum temperatures in Nairobi during September?
During September, expect a variety of temperatures with highs around 26° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Nairobi during September?
In September, Nairobi can expect light to moderate rainfall, totaling 50 mm across approximately 12 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Nairobi during September?
The average wind speed in Nairobi during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Nairobi in September?
As you prepare for your trip to Nairobi in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Nairobi, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Nairobi
Explore the daily rainfall trends and prepare for Nairobis September weather 💧
UV exposure in Nairobi during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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