Rayong weather by month & the best time to visit
🇹🇭 Thailand · beach resort · tropical monsoon climate
The best time to visit Rayong is February — its sunniest month (Sunshine Score 88/100), with December and January close behind. Rayong averages about 2,377 hours of sunshine a year. Daytime highs around 29°C / 84°F and roughly 25 mm of rain in February.
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- Sun hours / year
- 2,377
- Sunniest month
- February
- Peak score
- 88/100
- Rain / year
- 2,065 mm
- Midday UV at peak
- 10 (very high)
- Sea at warmest
- 32°C / 90°F
- Population
- 107k
- Elevation
- 13 m
When is the best time to visit Rayong?
For sunshine, the best time to visit Rayong is February, then December and January. The dullest month is May (65/100, 224 mm of rain). The full month-by-month picture is in the table below.
How sunny is Rayong?
Rayong gets a moderate 2,377 hours of sunshine a year. February (88/100) is noticeably better than May (65). It ranks #11 of 24 destinations in Thailand for annual sunshine, above the national median of 2,329 hours. Rain has a clear season: the wettest stretch, around August, carries about 47% of the annual 2,065 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 86 | 28° / 82°F | 25° / 77°F | 35 mm | 9 | 28° / 82°F |
| February | 88 | 29° / 84°F | 26° / 79°F | 25 mm | 9 | 29° / 84°F |
| March | 81 | 29° / 84°F | 27° / 81°F | 64 mm | 10 | 30° / 86°F |
| April | 76 | 30° / 86°F | 28° / 82°F | 91 mm | 10 | 31° / 88°F |
| May | 65 | 30° / 86°F | 29° / 84°F | 224 mm | 9 | 32° / 90°F |
| June | 65 | 29° / 84°F | 28° / 82°F | 290 mm | 9 | 31° / 88°F |
| July | 65 | 29° / 84°F | 28° / 82°F | 324 mm | 9 | 30° / 86°F |
| August | 65 | 29° / 84°F | 27° / 81°F | 293 mm | 10 | 30° / 86°F |
| September | 65 | 29° / 84°F | 27° / 81°F | 360 mm | 9 | 30° / 86°F |
| October | 65 | 29° / 84°F | 27° / 81°F | 252 mm | 9 | 31° / 88°F |
| November | 78 | 29° / 84°F | 26° / 79°F | 80 mm | 9 | 30° / 86°F |
| December | 88 | 29° / 84°F | 25° / 77°F | 27 mm | 9 | 29° / 84°F |
Sea temperature in Rayong by month
The sea off Rayong is warmest in May at around 32°C / 90°F, and coolest in January 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.
See Rayong on the interactive sunshine globe →
Nearby places for sunshine
- Bangkok Thailand · 115 km · best in Dec · 2,535 h sun/yr
- Ko Samui Thailand · 363 km · best in Feb · 2,342 h sun/yr
- Phu Quoc Vietnam · 429 km · best in Feb · 2,237 h sun/yr
- Phnom Penh (Pou Senchey) Cambodia · 436 km · best in Dec · 2,484 h sun/yr
- Surat Thani Thailand · 444 km · best in Feb · 2,175 h sun/yr
- Phnom Penh (Boeng Khyang) Cambodia · 450 km · best in Dec · 2,484 h sun/yr
Nearest destinations
- Hua Hin Thailand · 114 km · 2,103 h sun/yr · best in Feb
- Laem Ngop Thailand · 150 km · 2,069 h sun/yr · best in Dec
- Battambang Cambodia · 245 km · 2,493 h sun/yr · best in Dec
- Myeik Myanmar (Burma) · 260 km · 2,164 h sun/yr · best in Dec
- Chumphon Thailand · 283 km · 2,206 h sun/yr · best in Feb
Head-to-head
How Rayong compares month by month: Rayong vs Bangkok · Rayong vs Phu Quoc · Rayong vs Ko Samui · all comparisons
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