Monthly Climate
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Best time to visit Tantou

December is the best time to visit Tantou for general sightseeing, with average highs of 20 °C and about 5 wet days. The comfortable season runs roughly November to February. The sea stays above 20 °C from April to November.

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 95/100
A beach holiday October sea 27 °C
The least cloud October 43 % average cloud cover
The least rain November 38 mm
Warmth August 31 °C
Cooler weather January 19 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 December 95 20 °C 5 64
2 November 92 25 °C 5 90
3 January 88 19 °C 7 50
4 February 87 20 °C 9 49
5 March 82 23 °C 13 57
6 October 77 28 °C 6 93
7 April 69 26 °C 14 72
8 September 53 30 °C 15 69
9 May 51 29 °C 19 74
10 June 42 30 °C 23 70
11 August 41 31 °C 22 66
12 July 40 31 °C 22 66

For a beach holiday

October scores highest, with a sea temperature of 27 °C and air temperatures around 28 °C. The sea is above 20 °C from April to November.

Month Sea Air Sunshine Beach score
January 18 °C 19 °C 55 % 50
February 18 °C 20 °C 66 % 49
March 20 °C 23 °C 71 % 57
April 22 °C 26 °C 71 % 72
May 26 °C 29 °C 75 % 74
June 28 °C 30 °C 82 % 70
July 28 °C 31 °C 74 % 66
August 29 °C 31 °C 71 % 66
September 28 °C 30 °C 58 % 69
October 27 °C 28 °C 43 % 93
November 23 °C 25 °C 44 % 90
December 20 °C 20 °C 47 % 64

When to think twice

July scores lowest with about 22 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 19.1 °C 49 mm 55 %
February 20.4 °C 67 mm 66 %
March 23.2 °C 111 mm 71 %
April 26.2 °C 162 mm 71 %
May 28.6 °C 273 mm 75 %
June 29.8 °C 352 mm 82 %
July 30.7 °C 240 mm 74 %
August 30.7 °C 306 mm 71 %
September 30.0 °C 192 mm 58 %
October 28.2 °C 55 mm 43 %
November 24.9 °C 38 mm 44 %
December 20.4 °C 41 mm 47 %

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.