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.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 2,179
- Sunniest month
- September
- Peak score
- 72/100
- Rain / year
- 2,326 mm
- Midday UV at peak
- 12 (extreme)
- Sea at warmest
- 31°C / 88°F
- Population
- 56k
- Elevation
- 5 m

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.
See Honiara on the interactive sunshine globe →
Nearby places for sunshine
- Luganville Vanuatu · 1,030 km · best in Aug · 2,396 h sun/yr
- Port Vila Vanuatu · 1,282 km · best in Aug · 2,538 h sun/yr
- Port Moresby Papua New Guinea · 1,408 km · best in Jul · 2,354 h sun/yr
- Nouméa (La Tontouta) New Caledonia · 1,546 km · best in Sep · 2,761 h sun/yr
- Nouméa New Caledonia · 1,582 km · best in Sep · 2,762 h sun/yr
- Hamilton Island Australia · 1,702 km · best in Sep · 3,060 h sun/yr
Nearest destinations
- Marau Solomon Islands · 97 km · 2,179 h sun/yr · best in Sep
- Yandina Solomon Islands · 99 km · 2,360 h sun/yr · best in Jan
- Auki Solomon Islands · 106 km · 2,229 h sun/yr · best in Jan
- Manaoba Solomon Islands · 147 km · 2,229 h sun/yr · best in Jan
- Fera Solomon Islands · 156 km · 2,228 h sun/yr · best in Jan
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
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