Monthly Climate
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Best time to visit Avarua

August is the best time to visit Avarua for general sightseeing, with average highs of 23 °C and about 8 wet days. The comfortable season runs roughly 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 August comfort 78/100
A beach holiday June sea 25 °C
The least cloud August 59 % average cloud cover
The least rain June 65 mm
Warmth March 27 °C
Cooler weather August 23 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 August 78 23 °C 8 80
2 July 77 23 °C 8 81
3 September 77 23 °C 8 80
4 June 76 24 °C 8 84
5 October 74 24 °C 9 80
6 November 70 25 °C 10 82
7 May 66 25 °C 13 77
8 December 60 26 °C 14 74
9 April 58 26 °C 15 74
10 February 53 27 °C 16 73
11 January 53 26 °C 18 73
12 March 51 27 °C 18 73

For a beach holiday

June scores highest, with a sea temperature of 25 °C and air temperatures around 24 °C. The sea never reaches 20 °C here.

Month Sea Air Sunshine Beach score
January 27 °C 26 °C 70 % 73
February 28 °C 27 °C 69 % 73
March 28 °C 27 °C 65 % 73
April 27 °C 26 °C 63 % 74
May 26 °C 25 °C 65 % 77
June 25 °C 24 °C 62 % 84
July 25 °C 23 °C 59 % 81
August 24 °C 23 °C 59 % 80
September 24 °C 23 °C 61 % 80
October 25 °C 24 °C 64 % 80
November 26 °C 25 °C 67 % 82
December 27 °C 26 °C 68 % 74

When to think twice

March scores lowest with about 18 wet days and highs near 27 °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 26.3 °C 217 mm 70 %
February 26.8 °C 183 mm 69 %
March 26.8 °C 188 mm 65 %
April 26.2 °C 151 mm 63 %
May 25.0 °C 139 mm 65 %
June 24.1 °C 65 mm 62 %
July 23.4 °C 100 mm 59 %
August 23.1 °C 71 mm 59 %
September 23.2 °C 70 mm 61 %
October 23.7 °C 89 mm 64 %
November 24.8 °C 108 mm 67 %
December 25.6 °C 190 mm 68 %

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.