Monthly Climate
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Best time to visit Kitakyushu

October is the best time to visit Kitakyushu for general sightseeing, with average highs of 21 °C and about 8 wet days. The sea stays above 20 °C from June 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 October comfort 91/100
A beach holiday September sea 26 °C
The least cloud October 50 % average cloud cover
The least rain December 62 mm
Warmth August 30 °C
Cooler weather January 8.3 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 October 91 21 °C 8 73
2 May 88 22 °C 10 52
3 November 78 16 °C 8 45
4 April 77 18 °C 11 26
5 June 74 25 °C 15 63
6 September 72 26 °C 13 79
7 March 57 13 °C 11 8
8 July 56 29 °C 16 74
9 August 55 30 °C 14 74
10 December 54 11 °C 9 27
11 February 48 9.4 °C 9 13
12 January 43 8.3 °C 10 17

For a beach holiday

September scores highest, with a sea temperature of 26 °C and air temperatures around 26 °C. The sea is above 20 °C from June to November.

Month Sea Air Sunshine Beach score
January 16 °C 8.3 °C 68 % 17
February 14 °C 9.4 °C 65 % 13
March 14 °C 13 °C 63 % 8
April 15 °C 18 °C 61 % 26
May 18 °C 22 °C 65 % 52
June 21 °C 25 °C 78 % 63
July 25 °C 29 °C 71 % 74
August 27 °C 30 °C 61 % 74
September 26 °C 26 °C 60 % 79
October 23 °C 21 °C 50 % 73
November 20 °C 16 °C 54 % 45
December 18 °C 11 °C 61 % 27

When to think twice

January scores lowest with about 10 wet days and highs near 8.3 °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 8.3 °C 63 mm 68 %
February 9.4 °C 69 mm 65 %
March 12.6 °C 111 mm 63 %
April 17.5 °C 124 mm 61 %
May 22.0 °C 132 mm 65 %
June 25.1 °C 266 mm 78 %
July 28.8 °C 244 mm 71 %
August 30.0 °C 146 mm 61 %
September 26.3 °C 174 mm 60 %
October 21.5 °C 91 mm 50 %
November 16.1 °C 78 mm 54 %
December 10.6 °C 62 mm 61 %

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.