Monthly Climate
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Best time to visit Rạch Giá

January is the best time to visit Rạch Giá for general sightseeing, with average highs of 30 °C and about 5 wet days. The comfortable season runs roughly December to February.

It depends what you are going for

One month rarely wins on everything. These are the best months on each measure taken on its own.

If you want Best month On that measure
Sightseeing and walking January comfort 73/100
A beach holiday January sea 27 °C
The least cloud March 53 % average cloud cover
The least rain February 14 mm
Warmth April 33 °C
Cooler weather August 29 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 January 73 30 °C 5 93
2 February 69 31 °C 2 91
3 December 66 29 °C 10 82
4 March 60 33 °C 7 75
5 November 51 30 °C 18 67
6 October 47 30 °C 28 67
7 April 47 33 °C 14 54
8 September 46 29 °C 28 69
9 July 46 29 °C 28 68
10 August 45 29 °C 28 69
11 June 45 30 °C 27 64
12 May 42 31 °C 26 57

For a beach holiday

January scores highest, with a sea temperature of 27 °C and air temperatures around 30 °C. The sea never reaches 20 °C here.

Month Sea Air Sunshine Beach score
January 27 °C 30 °C 62 % 93
February 28 °C 31 °C 54 % 91
March 29 °C 33 °C 53 % 75
April 30 °C 33 °C 59 % 54
May 31 °C 31 °C 80 % 57
June 30 °C 30 °C 86 % 64
July 29 °C 29 °C 87 % 68
August 29 °C 29 °C 87 % 69
September 29 °C 29 °C 89 % 69
October 29 °C 30 °C 84 % 67
November 29 °C 30 °C 72 % 67
December 28 °C 29 °C 70 % 82

When to think twice

May scores lowest with about 26 wet days and highs near 31 °C. That does not make it a bad month — it depends entirely on what you are travelling for. The numbers are all here; the judgement is yours.

The full year

Month Avg high Rainfall Cloud
January 29.7 °C 27 mm 62 %
February 31.3 °C 14 mm 54 %
March 32.8 °C 43 mm 53 %
April 33.0 °C 94 mm 59 %
May 31.2 °C 208 mm 80 %
June 29.6 °C 248 mm 86 %
July 29.0 °C 271 mm 87 %
August 29.0 °C 256 mm 87 %
September 29.0 °C 290 mm 89 %
October 29.7 °C 316 mm 84 %
November 30.0 °C 143 mm 72 %
December 29.5 °C 71 mm 70 %

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: comfort score, beach score, season boundaries. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.