Buka weather by month & the best time to visit
Papua New Guinea · beach resort · tropical rainforest climate

The best time to visit Buka is January — its sunniest month (Sunshine Score 64/100), with February and March close behind. Buka averages about 2,119 hours of sunshine a year. Daytime highs around 29°C / 84°F and roughly 272 mm of rain in January.
When is the best time to visit Buka?
For sunshine, the best time to visit Buka is January, then February and March. The dullest month is January (64/100, 272 mm of rain). The full month-by-month picture is in the table below.
How sunny is Buka?
Buka gets a moderate 2,119 hours of sunshine a year. Conditions barely change through the year — only 0 Sunshine Score points separate January from January. It ranks #13 of 37 destinations in Papua New Guinea for annual sunshine, above the national median of 2,055 hours. The year's 3,206 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 | 29° / 84°F | 28° / 82°F | 272 mm | 11 | 31° / 88°F |
| February | 64 | 29° / 84°F | 28° / 82°F | 263 mm | 11 | 31° / 88°F |
| March | 64 | 29° / 84°F | 28° / 82°F | 250 mm | 12 | 31° / 88°F |
| April | 64 | 29° / 84°F | 28° / 82°F | 250 mm | 11 | 31° / 88°F |
| May | 64 | 29° / 84°F | 28° / 82°F | 272 mm | 10 | 31° / 88°F |
| June | 64 | 29° / 84°F | 28° / 82°F | 313 mm | 9 | 31° / 88°F |
| July | 64 | 29° / 84°F | 28° / 82°F | 341 mm | 9 | 31° / 88°F |
| August | 64 | 29° / 84°F | 28° / 82°F | 300 mm | 10 | 30° / 86°F |
| September | 64 | 29° / 84°F | 28° / 82°F | 258 mm | 11 | 30° / 86°F |
| October | 64 | 29° / 84°F | 28° / 82°F | 253 mm | 11 | 31° / 88°F |
| November | 64 | 29° / 84°F | 28° / 82°F | 222 mm | 11 | 31° / 88°F |
| December | 64 | 29° / 84°F | 28° / 82°F | 212 mm | 11 | 31° / 88°F |
Sea temperature in Buka by month
The sea off Buka is warmest in January at around 31°C / 88°F, and coolest in August at 30°C / 86°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
Buka: questions and answers
What kind of destination is Buka?
Buka is a beach resort in Papua New Guinea 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 Buka get a year?
Buka gets about 2,119 hours of sunshine a year, at its best around January.
When is the best time to visit Buka?
The sunniest time to visit Buka is January, when the Sunshine Score peaks at 64/100 (with February and March close behind). Expect daytime highs around 29°C / 84°F.
What is the least sunny month in Buka?
January is the least sunny month in Buka, scoring 64/100 with about 272 mm of rain.
What is the sea temperature in Buka?
The sea in Buka ranges from about 30°C (August) to 31°C (January). Month-by-month sea temperatures are on this page.
How strong is the sun in Buka?
The typical midday UV index in Buka peaks around 12 (extreme) in March, easing to about 9 (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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