Monthly Climate
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Best time to visit Sanmenxia

April is the best time to visit Sanmenxia for general sightseeing, with average highs of 22 °C and about 6 wet days. The comfortable season runs roughly April to May.

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 April comfort 95/100
The least cloud December 41 % average cloud cover
The least rain December 9 mm
Warmth July 31 °C
Cooler weather January 5.0 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 April 95 22 °C 6
2 October 90 20 °C 7
3 May 89 27 °C 7
4 September 87 25 °C 9
5 June 73 31 °C 7
6 March 73 15 °C 5
7 August 67 30 °C 11
8 November 64 12 °C 5
9 July 59 31 °C 12
10 February 48 8.8 °C 3
11 December 40 6.2 °C 2
12 January 40 5.0 °C 3

When to think twice

January scores lowest with about 3 wet days and highs near 5.0 °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 5.0 °C 10 mm 46 %
February 8.8 °C 16 mm 53 %
March 15.2 °C 24 mm 57 %
April 21.9 °C 41 mm 57 %
May 26.7 °C 53 mm 63 %
June 30.8 °C 72 mm 60 %
July 31.3 °C 120 mm 63 %
August 29.5 °C 111 mm 60 %
September 24.9 °C 100 mm 61 %
October 19.5 °C 56 mm 56 %
November 12.5 °C 31 mm 47 %
December 6.2 °C 9 mm 41 %

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.