Monthly Climate
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Best time to visit Rochester

September is the best time to visit Rochester for general sightseeing, with average highs of 22 °C and about 11 wet days. The comfortable season runs roughly June to September.

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 September comfort 86/100
The least cloud July 49 % average cloud cover
The least rain February 65 mm
Warmth July 26 °C
Cooler weather January 0.2 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 September 86 22 °C 11
2 June 85 23 °C 11
3 August 81 25 °C 11
4 July 80 26 °C 11
5 May 76 18 °C 11
6 October 63 15 °C 13
7 April 47 11 °C 11
8 November 34 8.6 °C 14
9 March 24 5.0 °C 11
10 February 23 0.9 °C 11
11 January 18 0.2 °C 14
12 December 17 3.0 °C 15

When to think twice

December scores lowest with about 15 wet days and highs near 3.0 °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 0.2 °C 83 mm 84 %
February 0.9 °C 65 mm 75 %
March 5.0 °C 79 mm 66 %
April 11.4 °C 98 mm 63 %
May 17.8 °C 81 mm 60 %
June 22.9 °C 91 mm 56 %
July 26.0 °C 88 mm 49 %
August 25.4 °C 80 mm 50 %
September 22.1 °C 87 mm 54 %
October 15.2 °C 105 mm 63 %
November 8.6 °C 95 mm 72 %
December 3.0 °C 93 mm 81 %

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.