Monthly Climate
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Best time to visit Bintulu

January is the best time to visit Bintulu for general sightseeing, with average highs of 29 °C and about 27 wet days.

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 49/100
A beach holiday February sea 28 °C
The least cloud July 84 % average cloud cover
The least rain July 211 mm
Warmth May 31 °C
Cooler weather January 29 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 January 49 29 °C 27 70
2 February 49 29 °C 23 71
3 December 49 29 °C 29 68
4 November 48 30 °C 29 67
5 October 47 30 °C 29 65
6 March 47 30 °C 26 68
7 September 46 30 °C 25 63
8 July 46 30 °C 22 62
9 August 45 31 °C 24 61
10 April 45 30 °C 27 64
11 June 45 31 °C 23 61
12 May 44 31 °C 26 61

For a beach holiday

February scores highest, with a sea temperature of 28 °C and air temperatures around 29 °C. The sea never reaches 20 °C here.

Month Sea Air Sunshine Beach score
January 28 °C 29 °C 91 % 70
February 28 °C 29 °C 90 % 71
March 29 °C 30 °C 88 % 68
April 30 °C 30 °C 87 % 64
May 30 °C 31 °C 86 % 61
June 30 °C 31 °C 84 % 61
July 30 °C 30 °C 84 % 62
August 30 °C 31 °C 85 % 61
September 30 °C 30 °C 88 % 63
October 30 °C 30 °C 92 % 65
November 29 °C 30 °C 93 % 67
December 29 °C 29 °C 94 % 68

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 29.1 °C 341 mm 91 %
February 29.3 °C 255 mm 90 %
March 30.0 °C 241 mm 88 %
April 30.4 °C 257 mm 87 %
May 30.7 °C 259 mm 86 %
June 30.5 °C 223 mm 84 %
July 30.5 °C 211 mm 84 %
August 30.6 °C 240 mm 85 %
September 30.4 °C 265 mm 88 %
October 29.8 °C 322 mm 92 %
November 29.5 °C 348 mm 93 %
December 29.2 °C 392 mm 94 %

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.