Honiara weather in August 2025

Expect 30°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Honiara in August. Check more long-term weather averages for Honiara in August before you book your next holiday to Solomon Islands in 2025/2026.

  • 30°C maximum daytime temperature in August in Honiara30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in August in Honiara13
    13 days with some rainfall
  • 21°C minimum night-time temperature in August in Honiara21
    21°C min night temperature
  • 12 hours of daylight per day in August in Honiara12
    12 hours of daylight per day
  • High heat & humidity in August in HoniaraH
    High heat & humidity
  • 114 mm monthly rainfall in August in Honiara114
    114 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Honiara11
    11+ (Extreme) UV index
  • 28°C sea temperature in August in Honiara28
    28°C sea temperature

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The August weather guide for Solomon Islands (Honiara) 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 Honiara in August?

Daytime temperatures usually reach 30°C in Honiara in August with high heat and humidity, falling to 21°C at night.

How sunny is it in Honiara in August?

There are normally 6 hours of bright sunshine each day in Honiara in August - that's 50% of daylight hours.

How warm is the sea around Honiara in August?

The average sea temperature around Honiara in August is 28°C.

Does it rain in Honiara in August?

There are usually 13 days with some rain in Honiara in August and the average monthly rainfall is 114mm.

Honiara August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:35 18:18
Saturday, 16th August 2025 06:30 18:19
Sunday, 31st August 2025 06:23 18:18

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