Honiara weather by month & the best time to visit
Solomon Islands · beach resort · tropical rainforest climate
The best time to visit Honiara is September — its sunniest month (Sunshine Score 72/100), with August and July close behind. Honiara averages about 2,179 hours of sunshine a year. Daytime highs around 30°C / 86°F and roughly 107 mm of rain in September.
When is the best time to visit Honiara?
For sunshine, the best time to visit Honiara is September, then August and July. The dullest month is January (64/100, 263 mm of rain). The full month-by-month picture is in the table below.
How sunny is Honiara?
Honiara gets a moderate 2,179 hours of sunshine a year. Conditions barely change through the year — only 8 Sunshine Score points separate September from January. It ranks #14 of 20 destinations in Solomon Islands for annual sunshine, below the national median of 2,219 hours. The year's 2,326 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 64 | 30° / 86°F | 27° / 81°F | 263 mm | 11 | 31° / 88°F |
| February | 64 | 30° / 86°F | 27° / 81°F | 305 mm | 12 | 30° / 86°F |
| March | 64 | 30° / 86°F | 27° / 81°F | 277 mm | 11 | 31° / 88°F |
| April | 64 | 30° / 86°F | 27° / 81°F | 220 mm | 10 | 31° / 88°F |
| May | 64 | 30° / 86°F | 27° / 81°F | 214 mm | 9 | 30° / 86°F |
| June | 65 | 29° / 84°F | 26° / 79°F | 143 mm | 8 | 30° / 86°F |
| July | 67 | 29° / 84°F | 26° / 79°F | 135 mm | 8 | 30° / 86°F |
| August | 71 | 29° / 84°F | 26° / 79°F | 114 mm | 9 | 29° / 84°F |
| September | 72 | 30° / 86°F | 26° / 79°F | 107 mm | 10 | 29° / 84°F |
| October | 64 | 30° / 86°F | 26° / 79°F | 160 mm | 11 | 30° / 86°F |
| November | 64 | 30° / 86°F | 26° / 79°F | 167 mm | 11 | 30° / 86°F |
| December | 64 | 30° / 86°F | 27° / 81°F | 221 mm | 11 | 31° / 88°F |
Sea temperature in Honiara by month
The sea off Honiara is warmest in January at around 31°C / 88°F, and coolest in August at 29°C / 84°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
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Head-to-head
How Honiara compares month by month: Honiara vs Port Moresby · Honiara vs South Tarawa · Honiara vs Port Vila · Honiara vs Luganville · all comparisons
Honiara: questions and answers
What kind of destination is Honiara?
Honiara is a beach resort in Solomon Islands with a tropical rainforest climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Honiara get a year?
Honiara gets about 2,179 hours of sunshine a year, at its best around September.
When is the best time to visit Honiara?
The sunniest time to visit Honiara is September, when the Sunshine Score peaks at 72/100 (with August and July close behind). Expect daytime highs around 30°C / 86°F.
What is the least sunny month in Honiara?
January is the least sunny month in Honiara, scoring 64/100 with about 263 mm of rain.
What is the sea temperature in Honiara?
The sea in Honiara ranges from about 29°C (August) to 31°C (January). Month-by-month sea temperatures are on this page.
How strong is the sun in Honiara?
The typical midday UV index in Honiara peaks around 12 (extreme) in February, easing to about 8 (very high) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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