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Diani Beach weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Diani Beach?
For a warm holiday, the best week has been 22–28 August (Weather Index 97). Favourable start dates for a 7-day trip run from 28 June to 17 September. January, February and March are warmest (33°C), February is driest and February, November and December have the most sun.
- Warmest
- January, February and March 33°C
- Coolest
- June to September 28°C
- Driest
- February 10% rain-day chance
- Wettest
- April 84% rain-day chance
- Sunniest
- February, November and December 12 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in Diani Beach
Diani Beach historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 32.7 | 25.7 | 16.1 | 5.0 | 20.0 | 11.5 |
| February | 33.0 | 25.9 | 9.6 | 2.7 | 11.9 | 11.6 |
| March | 33.0 | 26.2 | 37.7 | 11.7 | 52.6 | 11.1 |
| April | 30.8 | 25.7 | 84.0 | 25.2 | 213.5 | 9.4 |
| May | 29.3 | 24.9 | 71.0 | 22.0 | 219.0 | 9.4 |
| June | 28.4 | 23.9 | 66.3 | 19.9 | 89.1 | 10.6 |
| July | 27.7 | 23.1 | 65.2 | 20.2 | 62.8 | 10.8 |
| August | 27.8 | 22.8 | 65.5 | 20.3 | 58.9 | 10.9 |
| September | 28.5 | 23.1 | 59.3 | 17.8 | 60.0 | 11.2 |
| October | 29.7 | 24.0 | 54.5 | 16.9 | 102.7 | 11.3 |
| November | 30.8 | 24.9 | 64.7 | 19.4 | 91.1 | 11.6 |
| December | 31.9 | 25.5 | 47.7 | 14.8 | 65.7 | 11.7 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.