Diani Beach weather by month
Diani Beach is warmest in February (31°C average high) and coolest in July (26°C). For warm, mostly dry weather, go January to February. The sea is warm enough for easy swimming all year.
Warmest month
February
31°C
Coolest month
July
26°C
Wettest month
May
270 mm
Flight from London
9h
direct, estimated
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Diani Beach temperature by month
Tap a month for the detail and warmer alternatives.
| Month | Day | Night | Sea | Rain |
|---|---|---|---|---|
| January | 31°C | 25°C | 28°C | 47 mm |
| February | 31°C | 25°C | 29°C | 27 mm |
| March | 31°C | 25°C | 30°C | 77 mm |
| April | 29°C | 25°C | 29°C | 237 mm |
| May | 28°C | 24°C | 28°C | 270 mm |
| June | 27°C | 23°C | 28°C | 118 mm |
| July | 26°C | 22°C | 27°C | 90 mm |
| August | 26°C | 22°C | 26°C | 72 mm |
| September | 27°C | 23°C | 27°C | 85 mm |
| October | 28°C | 23°C | 27°C | 142 mm |
| November | 29°C | 24°C | 28°C | 108 mm |
| December | 30°C | 25°C | 29°C | 102 mm |
When to go to Diani Beach
What is the best month to visit Diani Beach for sun?
For warm, mostly dry days, go January to February, going by our 10-year averages.
What is the hottest month in Diani Beach?
February averages 31°C. July is the coolest at 26°C.
When does it rain most in Diani Beach?
May, with about 270 mm of rain.
When is the sea warm enough to swim in Diani Beach?
all year, when the sea averages 21°C or more.
How we measured this
Daily averages from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis); sea temperatures are 2023 to 2025 averages from the Open-Meteo marine archive. Rain is the average monthly total.
Going to Diani Beach?
Save the places you find on TikTok and Instagram for Diani Beach to one map, and Dream Trip will plan the days around them.
