worldweather

Weather in Honiara - 14-day forecast

Detailed weather forecast for Honiara, Solomon Islands: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Honiara
today🌧️ 29°💧 9.5 mm
Sun🌧️ 29°💧 19.3 mm
Mon🌧️ 28°💧 10.5 mm
Tue☁️ 29°💧 17.8 mm
Wed☁️ 28°💧 8.8 mm
Thu🌧️ 29°💧 1.5 mm
Fri🌧️ 29°💧 20.9 mm
Sat🌧️ 25°💧 143.9 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Friday 11 Sept in Honiara, the forecast high is 29°C. Typical daytime temperatures at this time of year range from 28°C to 29°C, so it will be warmer than usual. It is warmer than 89% of similar days.

29°Cwarmer than usual
usually 27°C–29°C
warmer than 78% of similar days
night: warmer than usual rain: exceptionally wet wind: lighter than usual
29°Cwarmer than usual
usually 27°C–29°C
warmer than 74% of similar days
night: exceptionally warm rain: exceptionally wet wind: exceptionally light
28°Cnear normal
usually 27°C–29°C
night: near normal rain: exceptionally wet wind: exceptionally light
29°Cwarmer than usual
usually 27°C–29°C
warmer than 73% of similar days
night: cooler than usual rain: exceptionally wet wind: exceptionally light
28°Cnear normal
usually 27°C–29°C
night: exceptionally cool rain: more rain than usual wind: exceptionally light
29°Cwarmer than usual
usually 27°C–29°C
warmer than 71% of similar days
night: warmer than usual rain: typical rainfall wind: exceptionally light
29°Cwarmer than usual
usually 28°C–29°C
warmer than 89% of similar days
night: exceptionally warm rain: exceptionally wet wind: lighter than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
20°28°35° 1981: 29°C1982: 30°C1983: 31°C1984: 28°C1985: 27°C1986: 27°C1987: 29°C1988: 28°C1989: 28°C1990: 27°C1991: 27°C1992: 28°C1993: 28°C1994: 28°C1995: 29°C1996: 28°C1997: 27°C1998: 28°C1999: 28°C2000: 29°C2001: 29°C2002: 28°C2003: 28°C2004: 28°C2005: 29°C2006: 27°C2007: 28°C2008: 30°C2009: 28°C2010: 29°C2011: 29°C2012: 28°C2013: 28°C2014: 28°C2015: 27°C2016: 28°C2017: 29°C2018: 28°C2019: 26°C2020: 28°C2021: 29°C2022: 29°C2023: 28°C2024: 28°C2025: 29°C 2026 forecast: 29°C current forecast 29°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 28°C by day. The coolest year was 2019 (26°C) and the warmest was 1983 (31°C). The current forecast averages 29°C - higher than in 73% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Honiara

Honiara - 14-day weather forecast infographic

Honiara 30 & 45-day weather - long-range outlook

Next 16 days · forecast
28°
around 24° at night · days with rain: 14
Weeks 3-4 · avg for September
32°
around 31° at night · rain chance 0%
Weeks 5-7 · avg for October
27°
around 26° at night · rain chance 0%
The 30 & 45-day outlook for Honiara: the next 16 days are a numerical forecast updated daily - on average 28° by day and 24° at night. Further out we rely on multi-year climate averages: around 32° in September, and about 27° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Honiara

Saturday5 September 2026
🌧️29°moderate rain
sunrise 06:21 · sunset 18:18 · night 25° · evening 26° · rain 9.5 mm · humidity 77% · wind 5 m/s · clouds 96%
Sunday6 September 2026
🌧️29°moderate rain
sunrise 06:20 · sunset 18:18 · night 25° · evening 26° · rain 19.33 mm · humidity 78% · wind 4 m/s · clouds 98%
Monday7 September 2026
🌧️28°moderate rain
sunrise 06:19 · sunset 18:18 · night 24° · evening 27° · rain 10.52 mm · humidity 80% · wind 2 m/s · clouds 14%
Tuesday8 September 2026
☁️29°overcast clouds
sunrise 06:19 · sunset 18:18 · night 24° · evening 27° · rain 17.79 mm · humidity 63% · wind 3 m/s · clouds 95%
Wednesday9 September 2026
☁️28°overcast clouds
sunrise 06:18 · sunset 18:17 · night 23° · evening 27° · rain 8.79 mm · humidity 63% · wind 3 m/s · clouds 87%
Thursday10 September 2026
🌧️29°light rain
sunrise 06:18 · sunset 18:17 · night 25° · evening 27° · rain 1.53 mm · humidity 60% · wind 3 m/s · clouds 33%
Friday11 September 2026
🌧️29°moderate rain
sunrise 06:17 · sunset 18:17 · night 25° · evening 27° · rain 20.94 mm · humidity 71% · wind 5 m/s · clouds 28%
Saturday12 September 2026
🌧️25°very heavy rain
sunrise 06:16 · sunset 18:17 · night 24° · evening 24° · rain 143.94 mm · humidity 96% · wind 4 m/s · clouds 98%
Sunday13 September 2026
🌧️26°heavy rain
sunrise 06:16 · sunset 18:17 · night 25° · evening 26° · rain 85.35 mm · humidity 93% · wind 5 m/s · clouds 100%
Monday14 September 2026
🌧️28°moderate rain
sunrise 06:15 · sunset 18:17 · night 26° · evening 28° · rain 15.6 mm · humidity 81% · wind 1 m/s · clouds 96%
Tuesday15 September 2026
🌧️29°moderate rain
sunrise 06:15 · sunset 18:17 · night 25° · evening 28° · rain 10.41 mm · humidity 79% · wind 2 m/s · clouds 100%
Wednesday16 September 2026
🌧️30°light rain
sunrise 06:14 · sunset 18:17 · night 25° · evening 28° · rain 1.38 mm · humidity 67% · wind 2 m/s · clouds 99%
Thursday17 September 2026
🌧️30°moderate rain
sunrise 06:13 · sunset 18:17 · night 26° · evening 28° · rain 9.96 mm · humidity 73% · wind 2 m/s · clouds 98%
Friday18 September 2026
🌧️25°very heavy rain
sunrise 06:13 · sunset 18:17 · night 25° · evening 25° · rain 109.02 mm · humidity 97% · wind 6 m/s · clouds 100%
Saturday19 September 2026
🌧️28°light rain
sunrise 06:12 · sunset 18:16 · night 23° · evening 27° · rain 0.75 mm · humidity 71% · wind 3 m/s · clouds 94%
Sunday20 September 2026
🌧️28°light rain
sunrise 06:12 · sunset 18:16 · night 22° · evening 27° · rain 0.3 mm · humidity 61% · wind 3 m/s · clouds 41%

UV index in Honiara - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTHoniara03681111+8.3UV VERY HIGHtoday, daily maxSPF 50, long sleeves and shade between 10:00 and16:00.Unprotected fair skin may burn in about 25 min8Sat5.095Sun6.098Mon7.099Tue8.098Wed9.097Thu10.099Fri11.096Sat12.096Sun13.098Mon14.098Tue15.098Wed16.096Thu17.098Fri18.098Sat19.099Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Honiara is 8 (very high) - unprotected fair skin can burn in about 25 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

Sea temperature - Honiara

Water today
28°C
Week avg
28°C
How's the water?
very warm
16-day sea temperature forecast:
5.09 28°C6.09 28°C7.09 28°C8.09 29°C9.09 29°C10.09 28°C11.09 28°C12.09 28°C13.09 28°C
Average sea temperature through the year:
Jan 31°CFeb 31°CMar 31°CApr 31°CMay 30°CJun 30°CJul 30°CAug 30°CSep 30°COct 30°CNov 30°CDec 31°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Honiara weather through the year

Honiara - annual climate

Warmest, driest months on average: January, October.

Nearby and related places

Port VilaPort MoresbyLaeNoumeaKingstownGrand CaymanMajuroDakhlaMalaboBridgetown

FAQ - Honiara weather

What is the weather like in Honiara today?
Today it is about 29° during the day and 25° at night, moderate rain.
How far ahead can I check the forecast for Honiara?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.