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Best time to visit Tanjungbalai

December is the best time to visit Tanjungbalai for general sightseeing, with average highs of 28 °C and about 28 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 December comfort 50/100
A beach holiday January sea 29 °C
The least cloud February 80 % average cloud cover
The least rain February 179 mm
Warmth June 30 °C
Cooler weather December 28 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 December 50 28 °C 28 70
2 January 50 29 °C 26 70
3 November 49 29 °C 29 68
4 February 49 29 °C 22 68
5 October 48 29 °C 30 67
6 September 47 30 °C 28 65
7 March 47 30 °C 26 66
8 August 46 30 °C 26 64
9 July 46 30 °C 23 64
10 April 45 30 °C 28 64
11 June 45 30 °C 23 63
12 May 44 30 °C 27 63

For a beach holiday

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

Month Sea Air Sunshine Beach score
January 29 °C 29 °C 84 % 70
February 29 °C 29 °C 80 % 68
March 30 °C 30 °C 82 % 66
April 30 °C 30 °C 87 % 64
May 30 °C 30 °C 88 % 63
June 30 °C 30 °C 82 % 63
July 30 °C 30 °C 83 % 64
August 30 °C 30 °C 86 % 64
September 30 °C 30 °C 89 % 65
October 30 °C 29 °C 92 % 67
November 29 °C 29 °C 94 % 68
December 29 °C 28 °C 91 % 70

When to think twice

May scores lowest with about 27 wet days and highs near 30 °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 28.7 °C 233 mm 84 %
February 29.2 °C 179 mm 80 %
March 29.7 °C 209 mm 82 %
April 29.8 °C 246 mm 87 %
May 30.1 °C 248 mm 88 %
June 30.1 °C 185 mm 82 %
July 29.9 °C 197 mm 83 %
August 29.8 °C 233 mm 86 %
September 29.5 °C 294 mm 89 %
October 29.1 °C 354 mm 92 %
November 28.6 °C 385 mm 94 %
December 28.4 °C 347 mm 91 %

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.