Honiara, Solomon Islands Weather
Honiara hourly forecast: next 24 hours
Today's high of 81°F (27°C) is about 3°F (2°C) below the typical September high of 84°F (29°C).
Current conditions in detail
Honiara weather tomorrow (Thursday, September 17)
Tomorrow in Honiara looks light rain shower, with a high of 78° and an overnight low of 72°. There is a 88% chance of rain - plan accordingly. Winds top out near 4 mph, and the UV index reaches 11 (extreme).
Honiara 14-day forecast
About the weather in Honiara
Honiara has one of the steadier climates in our dataset. Average highs move only 1°C across the whole year - from 83°F (28°C) in August to 85°F (29°C) in January - so the practical difference between seasons here is rainfall and daylight, not warmth.
Honiara weather: quick facts
- Hottest month: January - highs near 85°F (29°C)
- Coldest month: August - highs near 83°F (28°C)
- Decade extremes (2015-2024): 92°F (33°C) high · 69°F (20°C) low
- Wettest month: December (26 rainy days) · Sunniest: October (10.5 h sun/day)
- Climate type: tropical rainforest
- Annual swing: 1°C between the average warmest and coolest month · day to night: 5°C
- Average humidity: 86%
Temperatures through the year
Days and nights are about 5°C apart on average - narrower than all but 3% of the 3496 cities in our dataset. August sits at the other end of the year: 83°F (28°C) by day, 74°F (23°C) at night. Warmth peaks in January: highs of 85°F (29°C), lows of 76°F (24°C). Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 92°F (33°C) and the lowest daily minimum 69°F (20°C). December is the wettest month at 16.6 inches (421 mm) over 26 days; June is the driest.
Rain, sun and snow
Between the average January and the average August lie 1°C, a narrower spread than almost anywhere else we cover.
Season by season
September through November
September through November sits firmly in the heat here - highs near 84°F (29°C), nights near 75°F (24°C), and rain falls on around 63 of the 90 days. Daylight is generous - around 10.3 hours of sun a day.
December through February
December through February in Honiara sits firmly in the heat, with daytime highs averaging 84°F (29°C) and nights around 76°F (24°C); rain falls on around 78 of the 90 days.
March through May
March through May in Honiara runs hot, with daytime highs averaging 84°F (29°C) and nights around 75°F (24°C); rain falls on around 71 of the 90 days.
June through August
June through August is hot here - highs near 83°F (29°C), nights near 74°F (24°C), and rain falls on around 52 of the 90 days.
Average temperatures in Honiara by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 85° | 76° | 27 | 14.0 in | 9.2 h/day | 87% |
| February | 84° | 76° | 26 | 15.0 in | 8.4 h/day | 88% |
| March | 84° | 75° | 26 | 13.5 in | 8.8 h/day | 88% |
| April | 84° | 75° | 24 | 11.6 in | 9.0 h/day | 88% |
| May | 84° | 75° | 21 | 6.3 in | 9.3 h/day | 87% |
| June | 83° | 75° | 18 | 5.0 in | 9.5 h/day | 86% |
| July | 83° | 74° | 17 | 5.7 in | 9.4 h/day | 85% |
| August | 83° | 74° | 18 | 5.0 in | 9.4 h/day | 85% |
| September | 84° | 74° | 18 | 5.7 in | 10.3 h/day | 85% |
| October | 85° | 75° | 21 | 5.2 in | 10.5 h/day | 84% |
| November | 84° | 75° | 24 | 10.2 in | 10.0 h/day | 87% |
| December | 84° | 75° | 26 | 16.6 in | 9.2 h/day | 88% |