Monthly Climate
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Best time to visit Suzhou

October is the best time to visit Suzhou for general sightseeing, with average highs of 22 °C and about 6 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 October comfort 93/100
The least cloud December 49 % average cloud cover
The least rain December 53 mm
Warmth July 32 °C
Cooler weather January 7.9 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 October 93 22 °C 6
2 April 83 20 °C 11
3 May 81 25 °C 11
4 November 78 17 °C 8
5 September 73 27 °C 10
6 June 64 28 °C 14
7 March 60 14 °C 12
8 December 52 10 °C 6
9 August 48 31 °C 14
10 July 47 32 °C 14
11 February 47 10 °C 9
12 January 38 7.9 °C 9

When to think twice

January scores lowest with about 9 wet days and highs near 7.9 °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 7.9 °C 76 mm 58 %
February 10.2 °C 80 mm 62 %
March 14.4 °C 115 mm 66 %
April 20.2 °C 119 mm 66 %
May 25.1 °C 142 mm 67 %
June 27.9 °C 271 mm 77 %
July 31.6 °C 171 mm 69 %
August 31.3 °C 164 mm 61 %
September 27.3 °C 97 mm 56 %
October 22.5 °C 62 mm 50 %
November 16.7 °C 67 mm 51 %
December 10.2 °C 53 mm 49 %

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.