December · Kenya
Best time to visit Diani Beach in December Weather, crowds & prices
Weather in Diani Beach in December
Average temperature 28°C, 82 mm of rain, about 29 days with 6+ hours of sunshine and 79% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
8.6/10
Ranked #6 of 12 months
- Avg temp
- 28°C
- Rainfall
- 82 mm
- Humidity
- 79%
- Days with 6h+ sun
- 29
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
December in Diani Beach scores 8.6/10 for beach and coastal travel - an above-average month (#6 of 12). Expect around 28°C, 82 mm of rain, and roughly 29 days with 6+ hours of sunshine this month.
Diani Beach stretches white sand south of Mombasa with coral reefs, colobus monkeys, and monsoon-timed surf. Best window: the drier months outside peak monsoon.
December is one of the strongest months in Diani Beach (6th)
Days in December average 28°C (82°F) and humidity near 79% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Budget for roughly 82 mm of rain this month — a flexible day or two helps — with about 29 days with 6+ hours of sunshine and 12.2 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Diani Beach at 8.6/10 (6th of 12), just behind January at 9.8/10.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
Expect mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Diani Beach in December?
- In December, Diani Beach averages 28°C, 82 mm of rain, and about 29 days with 6+ hours of sunshine. Its climate-comfort score is 8.6/10.
- Is December a good time to visit Diani Beach?
- December earns a 8.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Diani Beach in December?
- Expect about 82 mm of rain in December. Average humidity is 79% and there are about 29 days with 6+ hours of sunshine.
Curated in Diani Beach
Tickets & experiences
Things to do in Diani Beach
Diani Beach, Kenya. Live activities and tours from GetYourGuide, matched to this destination.