Monthly Climate
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Best time to visit Shahrīār

October is the best time to visit Shahrīār for general sightseeing, with average highs of 23 °C and about 3 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 October comfort 96/100
The least cloud September 7 % average cloud cover
The least rain July 1 mm
Warmth July 36 °C
Cooler weather January 6.4 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 October 96 23 °C 3
2 May 89 27 °C 3
3 April 88 21 °C 8
4 September 78 30 °C 0
5 November 68 14 °C 6
6 June 68 33 °C 0
7 March 63 14 °C 9
8 August 60 35 °C 0
9 July 55 36 °C 0
10 December 44 8.6 °C 7
11 February 43 8.7 °C 8
12 January 37 6.4 °C 7

When to think twice

January scores lowest with about 7 wet days and highs near 6.4 °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 6.4 °C 38 mm 39 %
February 8.7 °C 41 mm 40 %
March 14.2 °C 49 mm 43 %
April 20.5 °C 45 mm 44 %
May 27.0 °C 15 mm 34 %
June 33.2 °C 2 mm 14 %
July 36.1 °C 1 mm 11 %
August 35.1 °C 2 mm 7 %
September 30.4 °C 2 mm 7 %
October 23.2 °C 17 mm 24 %
November 14.0 °C 39 mm 38 %
December 8.6 °C 39 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.