Diani Beach weather in December
December in Diani Beach: sweltering, a little rain, with clean air — an excellent time to visit.
#6 of 12 months in Diani Beach · #58 of 604 destinations to visit in December · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Diani Beach climate normals — December
| Daytime high | 31°C / 87°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 77 mm / 3 in | 🌦 some rain |
| Rainy days | 18 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 23°C / 74°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 12.4 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Diani Beach?
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Diani Beach in December — FAQ
- Is December a good time to visit Diani Beach?
- December in Diani Beach: sweltering, a little rain, with clean air — an excellent time to visit. It ranks #6 of 12 months for Diani Beach on SeasonMap's comfort score (86/100).
- What is the weather like in Diani Beach in December?
- In December, Diani Beach averages a daily high of 30.7°C and a low of 24.8°C, with about 76.5 mm of rain over roughly 17.8 rainy days.
- What is the air quality in Diani Beach in December?
- Diani Beach has a mean US Air Quality Index of about 44 in December.