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Weather extremes

How extreme does Honiara's weather get?

The hottest, coldest, wettest and snowiest days Honiara has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 34 years of daily weather observations (1991–present), from the Honiara station 3 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Honiara has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
103°F May 19, 2011

That is about 15°F hotter than a normal May afternoon in Honiara (typical high near 89°F).

The three most extreme on record

1 103°F May 19, 2011
2 96°F Mar 25, 2024
3 96°F Jan 23, 2020
❄️ Coldest night
57°F May 12, 1998

About 18°F colder than a normal May night in Honiara (typical low near 75°F).

The three most extreme on record

1 57°F May 12, 1998
2 59°F Jan 1, 2011
3 66°F Aug 10, 1993
🌧️ Most rain in one day
12.52 in Apr 4, 2014

More rain in a single day than Honiara usually gets in the whole month of April (typical April total about 8.8 in).

The three most extreme on record

1 12.52 in Apr 4, 2014
2 8.62 in Feb 7, 2017
3 8.38 in Dec 28, 2012

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

30°50°70°90°110°130° all-time high 103°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Honiara's record heat sits well above even a hot day for the season — May's 103°F is about 15°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Honiara's warmest days reach the high 80s°F and its coldest nights drop to the mid-70s°F. But across the record it has gone as high as 103°F and as low as 57°F. A single day has delivered over 13 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 26 years of daily observations at Honiara Intl, a weather station, about 12 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →