Diani Beach Weather in December: What to Expect
In December, Diani Beach averages highs of 30.2°C and lows of 24.8°C, with about 18 rainy days (~98 mm). Verdict: Wet season — plan around rain — ~18 rainy days this month. That makes it the hottest of Kenya's 6 main cities this month.
December in Diani brings the warmest temperatures of any Kenyan city, with daytime highs feeling quite hot and humid, while nights offer little respite from the heat. Expect frequent, short bursts of rain, often providing a welcome cool-down. The best time for outdoor activities, including exploring the coast or a trip to Kisite-Mpunguti Marine National Park, is generally in the early mornings or late afternoons. Carry light, breathable clothing and stay hydrated.
Diani Beach vs other Kenya cities in December
Kenya is not one climate. In December, Diani Beach runs to 30.2°C while Lake Nakuru sits at 24.6°C — a 6°C spread. Here is where Diani Beach falls:
| City | Avg high | Avg low | Rainy days |
|---|---|---|---|
| Diani Beach | 30.2°C | 24.8°C | 18 |
| Mombasa | 30.1°C | 24.9°C | 20 |
| Amboseli | 27.7°C | 17.9°C | 19 |
| Masai Mara | 27.3°C | 15.1°C | 13 |
| Nairobi | 24.6°C | 14.9°C | 16 |
| Lake Nakuru | 24.6°C | 13.9°C | 8 |
What to pack for Diani Beach in December
With highs near 30.2°C and lows around 24.8°C, pack light summer clothing plus a thin layer for evenings, a compact umbrella or rain shell.
Diani Beach is on the coast — add swimwear; sea conditions are pleasant for swimming this month.
What to do in Diani Beach in December
With 30.2°C midday highs, start outdoor sights early and keep afternoons for shaded or indoor stops. Top sights:
Public holidays in Kenya, December
- 2026-12-12 — Jamhuri Day
- 2026-12-25 — Christmas Day
- 2026-12-26 — Boxing Day
- 2027-12-13 — Jamhuri Day
- 2027-12-25 — Christmas Day
- 2027-12-26 — Boxing Day
Diani Beach in December — FAQs
What is the weather like in Diani Beach in December?
In December, Diani Beach averages daytime highs of 30.2°C and overnight lows around 24.8°C, with roughly 18 rainy days and about 98 mm of rain across the month. Wet season — plan around rain — ~18 rainy days this month.
Is December a good time to visit Diani Beach?
Wet season — plan around rain. Plan outdoor sights for early morning and keep midday for indoor or shaded activities. Among Kenya's cities, Diani Beach is the hottest this month.
What should I pack for Diani Beach in December?
For December (24.8–30.2°C), pack light summer clothing plus a thin layer for evenings, a compact umbrella or rain shell.
What is there to do in Diani Beach in December?
Diani Beach's main sights include Kisite-Mpunguti Marine National Park. Time outdoor sites for early morning given the midday heat.
Are there public holidays in Kenya in December?
Yes — Jamhuri Day (2026-12-12), Christmas Day (2026-12-25), Boxing Day (2026-12-26), Jamhuri Day (2027-12-13), Christmas Day (2027-12-25), Boxing Day (2027-12-26). Sites can be busier or closed around these dates.
Diani Beach weather by month: