Addis Ababa Weather in September
Ethiopia · Subtropical Highlands climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
September in Addis Ababa sees average temperatures ranging from a low of 9.4°C (48.9°F) to a high of 19.1°C (66.4°F), with a mean of 13.9°C (57.0°F). Compared to the annual average of 14.8°C (58.6°F), this month is 0.9°C cooler than the yearly norm. Precipitation averages 192.9mm, making it approximately 79.0mm wetter than the monthly average of 114.0mm. The city receives an average of 10.4 hours of sunshine per day during September, with relative humidity averaging 83.2%. Wind speeds reach an average maximum of 13.4 km/h. For travelers, this month offers a temperature experience in Addis Ababa, with wetter-than-average conditions compared to the rest of the year.
Addis Ababa's altitude of 2,355 meters creates a subtropical highland climate with comfortable temperatures year-round. I've studied the data and found that the city experiences two rainy seasons, with the main rains from June to September. The best time for visiting is October to May, when the weather is drier and the city's cultural attractions are most accessible.
September vs Adjacent Months
| Metric | August | September | October |
|---|---|---|---|
| Mean Temp | 13.9°C (57.0°F) | 13.9°C (57.0°F) | 14.1°C (57.4°F) |
| Rainfall | 294.0mm | 192.9mm | 52.1mm |
| Sunshine | 8.9 hrs | 10.4 hrs | 11.2 hrs |
| Humidity | 85.5% | 83.2% | 66.2% |
| Wind | 12.3 km/h | 13.4 km/h | 15.6 km/h |
| Rainy Days | 31.0 | 28.8 | 13.2 |
Seasonal Context
September falls in Autumn in the Northern Hemisphere. Autumn sees temperatures gradually cooling from summer highs. For travelers visiting Addis Ababa in September, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Addis Ababa in September?
The average temperature in Addis Ababa during September ranges from 9.4°C (48.9°F) to 19.1°C (66.4°F), with a mean of 13.9°C (57.0°F).
How much does it rain in Addis Ababa in September?
Addis Ababa receives an average of 192.9mm of precipitation in September, spread across approximately 28.8 rainy days.
What should I pack for Addis Ababa in September?
Based on September weather data, pack warm layers, a medium jacket, and waterproof outerwear. Rain gear is essential — this month averages 192.9mm of precipitation.
Is September a good time to visit Addis Ababa?
September is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Addis Ababa
Cities with Similar September Climate (Subtropical Highlands)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 9.03°, 38.75°. Timezone: Africa/Addis_Ababa. Last updated: 2026-07-30.