Karimunjawa weather by month & the best time to visit
🇮🇩 Indonesia · coastal city break · tropical — wet & dry seasons climate
The best time to visit Karimunjawa is August — its sunniest month (Sunshine Score 88/100), with September and July close behind. Karimunjawa averages about 2,331 hours of sunshine a year. Daytime highs around 28°C / 82°F and roughly 23 mm of rain in August.
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- Sun hours / year
- 2,331
- Sunniest month
- August
- Peak score
- 88/100
- Rain / year
- 1,913 mm
- Midday UV at peak
- 12 (extreme)
- Sea at warmest
- 31°C / 88°F
- Population
- 1.3M
- Elevation
- 13 m
When is the best time to visit Karimunjawa?
For sunshine, the best time to visit Karimunjawa is August, then September and July. The dullest month is January (65/100, 351 mm of rain). The full month-by-month picture is in the table below.
How sunny is Karimunjawa?
Karimunjawa gets a moderate 2,331 hours of sunshine a year. August (88/100) is noticeably better than January (65). It ranks #43 of 119 destinations in Indonesia for annual sunshine, above the national median of 2,183 hours. Rain has a clear season: the wettest stretch, around January, carries about 50% of the annual 1,913 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 65 | 28° / 82°F | 27° / 81°F | 351 mm | 10 | 30° / 86°F |
| February | 65 | 28° / 82°F | 27° / 81°F | 307 mm | 10 | 30° / 86°F |
| March | 65 | 28° / 82°F | 27° / 81°F | 212 mm | 11 | 30° / 86°F |
| April | 65 | 29° / 84°F | 28° / 82°F | 173 mm | 11 | 31° / 88°F |
| May | 69 | 29° / 84°F | 28° / 82°F | 128 mm | 10 | 31° / 88°F |
| June | 76 | 29° / 84°F | 28° / 82°F | 92 mm | 9 | 30° / 86°F |
| July | 84 | 28° / 82°F | 27° / 81°F | 47 mm | 10 | 29° / 84°F |
| August | 88 | 28° / 82°F | 27° / 81°F | 23 mm | 11 | 29° / 84°F |
| September | 86 | 28° / 82°F | 27° / 81°F | 38 mm | 12 | 30° / 86°F |
| October | 76 | 29° / 84°F | 28° / 82°F | 88 mm | 11 | 31° / 88°F |
| November | 65 | 29° / 84°F | 28° / 82°F | 162 mm | 10 | 31° / 88°F |
| December | 65 | 28° / 82°F | 27° / 81°F | 292 mm | 9 | 30° / 86°F |
Sea temperature in Karimunjawa by month
The sea off Karimunjawa is warmest in April at around 31°C / 88°F, and coolest in July 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 Karimunjawa on the interactive sunshine globe →
Nearby places for sunshine
- Semarang Indonesia · 131 km · best in Jul · 2,418 h sun/yr
- Surakarta Indonesia · 193 km · best in Aug · 2,418 h sun/yr
- Yogyakarta Indonesia · 221 km · best in Aug · 2,418 h sun/yr
- Surabaya Indonesia · 310 km · best in Jul · 2,492 h sun/yr
- Malang Indonesia · 342 km · best in Aug · 2,491 h sun/yr
- Bandung Indonesia · 343 km · best in Aug · 2,260 h sun/yr
Nearest destinations
- Cilacap Indonesia · 260 km · 2,250 h sun/yr · best in Aug
- Kediri Indonesia · 271 km · 2,565 h sun/yr · best in Jul
- Kertajati Indonesia · 272 km · 2,326 h sun/yr · best in Aug
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