Rennell weather in August 2025

Expect 30°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Rennell in August. Check more long-term weather averages for Rennell in August before you book your next holiday to Solomon Islands in 2025/2026.

  • 30°C maximum daytime temperature in August in Rennell30
    30°C max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in August in Rennell14
    14 days with some rainfall
  • 22°C minimum night-time temperature in August in Rennell22
    22°C min night temperature
  • 12 hours of daylight per day in August in Rennell12
    12 hours of daylight per day
  • High heat & humidity in August in RennellH
    High heat & humidity
  • 192 mm monthly rainfall in August in Rennell192
    192 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in August in Rennell11
    11 (Extreme) UV index
  • 27°C sea temperature in August in Rennell27
    27°C sea temperature

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The August weather guide for Solomon Islands (Rennell) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Rennell in August?

Daytime temperatures usually reach 30°C in Rennell in August with high heat and humidity, falling to 22°C at night.

How sunny is it in Rennell in August?

There are normally 7 hours of bright sunshine each day in Rennell in August - that's 55% of daylight hours.

How warm is the sea around Rennell in August?

The average sea temperature around Rennell in August is 27°C.

Does it rain in Rennell in August?

There are usually 14 days with some rain in Rennell in August and the average monthly rainfall is 192mm.

Rennell August sunrise & sunset times

Browse the sunrise and sunset times for Rennell in August 2025. Select a month to view Rennell sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:38 18:14
Saturday, 16th August 2025 06:32 18:16
Sunday, 31st August 2025 06:24 18:16

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