Monthly Climate
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Best time to visit Hamilton

February is the best time to visit Hamilton for general sightseeing, with average highs of 23 °C and about 8 wet days. The comfortable season runs roughly December to April.

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 February comfort 88/100
The least cloud March 57 % average cloud cover
The least rain January 68 mm
Warmth February 23 °C
Cooler weather July 13 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 February 88 23 °C 8
2 March 88 22 °C 8
3 January 87 23 °C 9
4 December 82 21 °C 11
5 April 79 19 °C 10
6 November 75 18 °C 11
7 May 65 16 °C 12
8 October 65 17 °C 13
9 September 56 15 °C 14
10 June 54 14 °C 13
11 August 50 14 °C 15
12 July 49 13 °C 13

When to think twice

July scores lowest with about 13 wet days and highs near 13 °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 22.7 °C 68 mm 60 %
February 23.4 °C 71 mm 59 %
March 21.6 °C 73 mm 57 %
April 18.8 °C 93 mm 60 %
May 16.0 °C 105 mm 60 %
June 13.8 °C 114 mm 60 %
July 13.1 °C 124 mm 60 %
August 13.6 °C 121 mm 61 %
September 15.1 °C 113 mm 64 %
October 16.6 °C 100 mm 64 %
November 18.5 °C 90 mm 65 %
December 20.8 °C 100 mm 66 %

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.