Ko Samui vs Sinjai Climate
90%matchOn climate, Sinjai is a 90% match for Ko Samui. Compared with Ko Samui, Sinjai has the same daytime highs and more rain in the dry season.
Ko Samui gets 67 in (1712 mm) of rain a year and Sinjai 95 in (2418 mm). Ko Samui's warmest month is May, at 92°F (33°C); Sinjai's is October, at 91°F (33°C).
Sinjai is in the Southern Hemisphere, so its seasons are flipped: Ko Samui's July is most like Sinjai's January.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
Ko SamuiSinjai (6 months later)solid = high, dashed = low
Rain (in per month)
Ko SamuiSinjai (6 months later)
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Ko Samui | Sinjai | Ko Samui | Sinjai | Ko Samui | Sinjai | |
| Jan | 85°F(30°C) | 88°F(31°C) | 74°F(23°C) | 76°F(24°C) | 4.5 in(115 mm) | 5.1 in(130 mm) |
| Feb | 87°F(30°C) | 87°F(31°C) | 74°F(24°C) | 75°F(24°C) | 2.0 in(50 mm) | 5.1 in(130 mm) |
| Mar | 89°F(32°C) | 89°F(31°C) | 76°F(24°C) | 75°F(24°C) | 4.1 in(105 mm) | 6.3 in(159 mm) |
| Apr | 91°F(33°C) | 89°F(32°C) | 77°F(25°C) | 75°F(24°C) | 3.6 in(92 mm) | 13 in(332 mm) |
| May | 92°F(33°C) | 89°F(32°C) | 77°F(25°C) | 75°F(24°C) | 4.8 in(121 mm) | 18 in(469 mm) |
| Jun | 90°F(32°C) | 88°F(31°C) | 77°F(25°C) | 74°F(23°C) | 3.2 in(82 mm) | 18 in(451 mm) |
| Jul | 90°F(32°C) | 88°F(31°C) | 77°F(25°C) | 73°F(23°C) | 3.1 in(79 mm) | 11 in(274 mm) |
| Aug | 89°F(32°C) | 89°F(32°C) | 77°F(25°C) | 73°F(23°C) | 3.5 in(89 mm) | 4.5 in(115 mm) |
| Sep | 89°F(32°C) | 91°F(33°C) | 76°F(24°C) | 74°F(23°C) | 4.5 in(114 mm) | 2.2 in(57 mm) |
| Oct | 87°F(31°C) | 91°F(33°C) | 75°F(24°C) | 75°F(24°C) | 10 in(262 mm) | 3.4 in(86 mm) |
| Nov | 85°F(30°C) | 90°F(32°C) | 75°F(24°C) | 75°F(24°C) | 15 in(372 mm) | 3.6 in(91 mm) |
| Dec | 85°F(29°C) | 88°F(31°C) | 74°F(23°C) | 76°F(24°C) | 9.1 in(231 mm) | 4.9 in(124 mm) |
1991–2020 averages, by calendar month.