Sun, sea & sand

Diani Beach weather in August

Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.

78

Holiday weather in August

Good

Best time to visit: December – March

Air temperature26°CNight 22°
Sea temperature25.5°Cpleasant
Sunshine8hrs / dayof 12.0 h daylight
Rainy days20days / month59 mm

What is the weather like in Diani Beach in August?

In August, Diani Beach is warm: daytime highs average 26 °C, and even at night it stays warm at around 22 °C. The sea averages 25.5 °C – pleasant for swimming. The sun shines for around 8 hours a day. It is the rainy season: rain falls on about 20 days, totalling 59 mm. The air is often humid and muggy. All in all, August is a good month for a holiday in Diani Beach.

August compared

How the weather changes from July to September. Tap a month to open it.

JulyJulAugustAugSeptemberSep
Score777878
Day26°26°27°
Night23°22°23°
Sea26°26°26°
Sun8 h8 h8 h
Rain days202018

More details for August

Daylight
11 h 58 min06:28 – 18:26
UV index
12 · extremeclear sky, noon (estimate)
Muggy days
31 daysdew point 18 °C or more
Wind
20 km/haverage daily peak
Cloud cover
50 %on average
Hot days
0 days30 °C or more
Time zone
UTC+3Africa/Nairobi

How the score comes together

  • Temperatureweight 35 %100 %
  • Seaweight 25 %100 %
  • Sunshineweight 20 %88 %
  • Few rainy daysweight 20 %0 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in August

  • Swimwear
  • Sunscreen
  • Sunglasses & sun hat
  • Light, breathable clothes
  • Insect repellent
  • Rain jacket or umbrella

Diani Beach in August: quick answers

Is Diani Beach hot in August?

Warm rather than hot: in August, daytime highs in Diani Beach average 26 °C and nights cool to about 22 °C.

Can you swim in Diani Beach in August?

Yes. In August the sea averages 25.5 °C – pleasant for swimming.

Does it rain much in Diani Beach in August?

It rains often – on about 20 days, adding up to 59 mm.

Diani Beach month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)