Kenya
Diani Beach in December: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Diani Beach in December is climatically well suited to beach holidays. The average daily high is around 31 °C, and the sea is about 28 °C. With about 17 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
56/100 · #10
Warmth
#4
Dryness
#9
Sun
#2
Sea warmth
#3
Published best categories: none
Diani Beach · DecemberPhoto: Lebu Ayiga · CC BY 4.0Climate facts
- Average high
- 31 °C
- Average low
- 25 °C
- Sea
- 28 °C
- Rainy days (est.)
- 17 rainy days (est.)
- Sun (est.)
- 8 h/day
- Humidity
- 76 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| November | 30 | 25 | 19 | 110 | 7.9 | 76 | 2.8 | 28 | 58 |
| December (selected) | 31 | 25 | 17 | 83 | 7.9 | 76 | 3.1 | 28 | 56 |
| January | 32 | 25 | 7 | 34 | 7.8 | 73 | 3.7 | 28 | 71 |
How do the previous and next months compare?
Baseline: December (56/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| November | +2 | -0.8 °C | -0.4 °C | +1.3 | +26.5 mm | ±0 h | ±0 % | -0.3 m/s | -0.5 °C |
| January | +15 | +1 °C | ±0 °C | -10.6 | -49.4 mm | -0.1 h | -3.1 % | +0.6 m/s | -0.3 °C |
All twelve months in context
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Where to stay in Diani Beach
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Useful next decisions
Frequently asked questions
How warm is Diani Beach in December?
The average daily high is around 31 °C, with an average daily low of about 25 °C.
Can you swim in Diani Beach in December?
The sea is about 28 °C (very warm).
Does it rain a lot in Diani Beach in December?
The curated estimate is about 17 rainy days per month, not a directly measured long-term average. Total precipitation averages around 83 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Diani Beach?
By the climate score, June, July, August and September are the strongest months for Diani Beach. For a beach trip: July, August, September and October. December is not among them.