Rennell weather by month & the best time to visit
Solomon Islands · beach resort · tropical rainforest climate
The best time to visit Rennell is August — its sunniest month (Sunshine Score 69/100), with January and February close behind. Rennell averages about 2,343 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 131 mm of rain in August.
When is the best time to visit Rennell?
For sunshine, the best time to visit Rennell is August, then January and February. The dullest month is January (65/100, 256 mm of rain). The full month-by-month picture is in the table below.
How sunny is Rennell?
Rennell gets a moderate 2,343 hours of sunshine a year. Conditions barely change through the year — only 4 Sunshine Score points separate August from January. It ranks #5 of 20 destinations in Solomon Islands for annual sunshine, above the national median of 2,219 hours. The year's 2,304 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 | 65 | 29° / 84°F | 28° / 82°F | 256 mm | 12 | 30° / 86°F |
| February | 65 | 29° / 84°F | 28° / 82°F | 247 mm | 12 | 30° / 86°F |
| March | 65 | 29° / 84°F | 28° / 82°F | 235 mm | 12 | 30° / 86°F |
| April | 65 | 29° / 84°F | 28° / 82°F | 223 mm | 10 | 30° / 86°F |
| May | 65 | 28° / 82°F | 28° / 82°F | 192 mm | 9 | 29° / 84°F |
| June | 65 | 28° / 82°F | 27° / 81°F | 183 mm | 8 | 29° / 84°F |
| July | 65 | 27° / 81°F | 27° / 81°F | 160 mm | 8 | 28° / 82°F |
| August | 69 | 27° / 81°F | 27° / 81°F | 131 mm | 9 | 28° / 82°F |
| September | 65 | 28° / 82°F | 27° / 81°F | 155 mm | 10 | 28° / 82°F |
| October | 65 | 28° / 82°F | 27° / 81°F | 174 mm | 11 | 29° / 84°F |
| November | 65 | 28° / 82°F | 27° / 81°F | 176 mm | 12 | 29° / 84°F |
| December | 65 | 29° / 84°F | 28° / 82°F | 172 mm | 12 | 31° / 88°F |
Sea temperature in Rennell by month
The sea off Rennell is warmest in December at around 31°C / 88°F, and coolest in July at 28°C / 82°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
Rennell: questions and answers
What kind of destination is Rennell?
Rennell 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 Rennell get a year?
Rennell gets about 2,343 hours of sunshine a year, at its best around August.
When is the best time to visit Rennell?
The sunniest time to visit Rennell is August, when the Sunshine Score peaks at 69/100 (with January and February close behind). Expect daytime highs around 27°C / 81°F.
What is the least sunny month in Rennell?
January is the least sunny month in Rennell, scoring 65/100 with about 256 mm of rain.
What is the sea temperature in Rennell?
The sea in Rennell ranges from about 28°C (July) to 31°C (December). Month-by-month sea temperatures are on this page.
How strong is the sun in Rennell?
The typical midday UV index in Rennell peaks around 12 (extreme) in January, 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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