Rach Gia weather by month & the best time to visit
Vietnam · coastal city break · tropical — wet & dry seasons climate
The best time to visit Rach Gia is January — its sunniest month (Sunshine Score 88/100), with December close behind. Rach Gia averages about 2,207 hours of sunshine a year. Daytime highs around 31°C / 88°F and roughly 20 mm of rain in January.
When is the best time to visit Rach Gia?
For sunshine, the best time to visit Rach Gia is January, then December. The dullest month is April (57/100, 59 mm of rain). The full month-by-month picture is in the table below.
How sunny is Rach Gia?
Rach Gia gets a moderate 2,207 hours of sunshine a year. January (88/100) is noticeably better than April (57). It ranks #10 of 22 destinations in Vietnam for annual sunshine, above the national median of 2,124 hours. Rain has a clear season: the wettest stretch, around August, carries about 44% of the annual 1,476 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 88 | 31° / 88°F | 22° / 72°F | 20 mm | 9 | 29° / 84°F |
| February | 72 | 34° / 93°F | 23° / 73°F | 11 mm | 11 | 29° / 84°F |
| March | 61 | 35° / 95°F | 24° / 75°F | 28 mm | 11 | 30° / 86°F |
| April | 57 | 35° / 95°F | 26° / 79°F | 59 mm | 11 | 32° / 90°F |
| May | 66 | 32° / 90°F | 27° / 81°F | 142 mm | 9 | 32° / 90°F |
| June | 64 | 30° / 86°F | 26° / 79°F | 211 mm | 8 | 31° / 88°F |
| July | 64 | 29° / 84°F | 26° / 79°F | 214 mm | 8 | 29° / 84°F |
| August | 64 | 29° / 84°F | 26° / 79°F | 205 mm | 9 | 30° / 86°F |
| September | 64 | 29° / 84°F | 25° / 77°F | 237 mm | 9 | 29° / 84°F |
| October | 64 | 29° / 84°F | 25° / 77°F | 192 mm | 9 | 30° / 86°F |
| November | 70 | 30° / 86°F | 24° / 75°F | 116 mm | 9 | 30° / 86°F |
| December | 84 | 30° / 86°F | 22° / 72°F | 41 mm | 8 | 29° / 84°F |
Sea temperature in Rach Gia by month
The sea off Rach Gia is warmest in April at around 32°C / 90°F, and coolest in January 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.
Nearest destinations
Rach Gia: questions and answers
What kind of destination is Rach Gia?
Rach Gia is a coastal city break in Vietnam with a tropical — wet & dry seasons climate — the sea reaches 32°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Rach Gia get a year?
Rach Gia gets about 2,207 hours of sunshine a year, at its best around January.
When is the best time to visit Rach Gia?
The sunniest time to visit Rach Gia is January, when the Sunshine Score peaks at 88/100 (with December close behind). Expect daytime highs around 31°C / 88°F.
What is the least sunny month in Rach Gia?
April is the least sunny month in Rach Gia, scoring 57/100 with about 59 mm of rain.
What is the sea temperature in Rach Gia?
The sea in Rach Gia ranges from about 29°C (January) to 32°C (April). Month-by-month sea temperatures are on this page.
How strong is the sun in Rach Gia?
The typical midday UV index in Rach Gia peaks around 11 (extreme) in February, 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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