Monthly Climate
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Best time to visit Fianarantsoa

September is the best time to visit Fianarantsoa for general sightseeing, with average highs of 22 °C and about 3 wet days. The comfortable season runs roughly April to October.

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 92/100
The least cloud September 51 % average cloud cover
The least rain August 10 mm
Warmth December 25 °C
Cooler weather July 18 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 September 92 22 °C 3
2 May 91 21 °C 6
3 October 89 24 °C 8
4 August 88 19 °C 3
5 June 87 19 °C 4
6 April 86 23 °C 10
7 July 83 18 °C 4
8 November 81 25 °C 13
9 March 75 24 °C 16
10 February 71 24 °C 19
11 December 70 25 °C 20
12 January 69 25 °C 23

When to think twice

January scores lowest with about 23 wet days and highs near 25 °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 24.5 °C 290 mm 82 %
February 24.2 °C 220 mm 81 %
March 23.9 °C 150 mm 75 %
April 22.7 °C 53 mm 67 %
May 21.0 °C 25 mm 64 %
June 18.8 °C 16 mm 61 %
July 17.8 °C 17 mm 64 %
August 19.4 °C 10 mm 57 %
September 21.7 °C 11 mm 51 %
October 23.8 °C 45 mm 55 %
November 25.0 °C 98 mm 63 %
December 25.1 °C 212 mm 74 %

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.