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The coolest places in the world in September: ranked by average high temperature

Grytviken tops the list at -0.2 °C in September. Ranked from 1991–2020 climate normals across 50 destinations in the world.

Top three in September: Grytviken (-0.2 °C) , Longyearbyen (2.4 °C) , Port-aux-Français (4.5 °C) . Between first and 50th place the avg high differs by 15 °C.

# Destination Country Avg high Avg high Avg low Rainfall Wet days Sunshine Sea temp
1 Grytviken South Georgia and the South Sandwich Islands -0.2 °C -0.2 °C -3.7 °C 130 mm 18 218 h 0.4 °C
2 Longyearbyen Svalbard and Jan Mayen 2.4 °C 2.4 °C -0.9 °C 46 mm 10 139 h –
3 Port-aux-Français French Southern Territories 4.5 °C 4.5 °C -0.9 °C 82 mm 14 229 h 2.8 °C
4 Stanley Falkland Islands 6.6 °C 6.6 °C 2.5 °C 38 mm 9 240 h 5.1 °C
5 Nuuk Greenland 6.8 °C 6.8 °C 1.4 °C 100 mm 12 216 h 3.9 °C
6 Murmansk Russia 9.5 °C 9.5 °C 4.5 °C 56 mm 12 175 h –
7 Reykjavík Iceland 10 °C 10 °C 5.8 °C 134 mm 17 209 h 10 °C
8 Surgut Russia 10 °C 10 °C 4.1 °C 62 mm 12 178 h –
9 Nizhnevartovsk Russia 11 °C 11 °C 4.3 °C 65 mm 13 182 h –
10 Yakutsk Russia 11 °C 11 °C 2.7 °C 37 mm 8 242 h –
11 Tórshavn Faroe Islands 11 °C 11 °C 8.8 °C 88 mm 15 196 h 10 °C
12 Severodvinsk Russia 12 °C 12 °C 6.8 °C 65 mm 13 207 h 9.9 °C
13 Arkhangel’sk Russia 12 °C 12 °C 6.2 °C 65 mm 12 197 h –
14 Syktyvkar Russia 12 °C 12 °C 5.6 °C 64 mm 13 171 h –
15 Bratsk Russia 12 °C 12 °C 6.0 °C 44 mm 10 255 h –
16 Puerto Montt Chile 12 °C 12 °C 5.8 °C 181 mm 18 248 h 11 °C
17 Berezniki Russia 12 °C 12 °C 6.1 °C 76 mm 14 187 h –
18 Oulu Finland 12 °C 12 °C 7.2 °C 58 mm 10 222 h 12 °C
19 Anchorage United States 12 °C 12 °C 6.5 °C 138 mm 17 225 h 12 °C
20 Wellington New Zealand 13 °C 13 °C 9.6 °C 78 mm 11 284 h 12 °C
21 Petropavlovsk-Kamchatsky Russia 13 °C 13 °C 6.0 °C 108 mm 10 258 h 11 °C
22 Zlatoust Russia 13 °C 13 °C 5.4 °C 59 mm 12 226 h –
23 Petrozavodsk Russia 13 °C 13 °C 8.3 °C 60 mm 12 216 h –
24 Nizhny Tagil Russia 13 °C 13 °C 6.1 °C 62 mm 11 194 h –
25 Tomsk Russia 13 °C 13 °C 4.9 °C 53 mm 11 227 h –
26 Kirov Russia 13 °C 13 °C 6.7 °C 57 mm 11 203 h –
27 Perm Russia 13 °C 13 °C 6.8 °C 65 mm 12 202 h –
28 Cherepovets Russia 13 °C 13 °C 8.4 °C 56 mm 10 204 h –
29 Yekaterinburg Russia 13 °C 13 °C 6.2 °C 51 mm 10 215 h –
30 Vologda Russia 14 °C 14 °C 7.2 °C 60 mm 11 194 h –
31 La Paz Bolivia 14 °C 14 °C 2.4 °C 39 mm 12 334 h –
32 Tampere Finland 14 °C 14 °C 8.6 °C 55 mm 10 212 h –
33 Christchurch New Zealand 14 °C 14 °C 5.3 °C 49 mm 9 278 h 10 °C
34 Tyumen Russia 14 °C 14 °C 6.3 °C 50 mm 10 212 h –
35 Krasnoyarsk Russia 14 °C 14 °C 5.0 °C 54 mm 12 238 h –
36 Trondheim Norway 14 °C 14 °C 7.2 °C 106 mm 15 229 h –
37 Temuco Chile 14 °C 14 °C 4.8 °C 111 mm 12 256 h –
38 Hobart Australia 14 °C 14 °C 6.5 °C 54 mm 11 281 h –
39 Bergen Norway 14 °C 14 °C 8.9 °C 245 mm 18 222 h 15 °C
40 Kemerovo Russia 14 °C 14 °C 5.6 °C 59 mm 12 244 h –
41 Novosibirsk Russia 14 °C 14 °C 6.1 °C 49 mm 10 243 h –
42 Rybinsk Russia 14 °C 14 °C 8.4 °C 61 mm 11 215 h –
43 Miass Russia 14 °C 14 °C 6.3 °C 43 mm 9 239 h –
44 Mariehamn Aland Islands 14 °C 14 °C 12 °C 47 mm 9 274 h 14 °C
45 Kostroma Russia 14 °C 14 °C 7.8 °C 65 mm 11 209 h –
46 Kamensk-Ural’skiy Russia 14 °C 14 °C 6.8 °C 48 mm 9 219 h –
47 Aberdeen United Kingdom 14 °C 14 °C 11 °C 61 mm 11 240 h 13 °C
48 Saint Petersburg Russia 14 °C 14 °C 8.9 °C 55 mm 11 241 h –
49 Stavanger Norway 14 °C 14 °C 11 °C 188 mm 17 237 h 15 °C
50 Valparaíso Chile 14 °C 14 °C 10 °C 25 mm 3 315 h 13 °C

Monthly values for the month named in the ranking; only destinations with a published climate page are ranked. Download this ranking as CSV.

The same ranking one month earlier and later

August: top 5

  1. Ahvaz 47 °C
  2. Basrah 47 °C
  3. Al ‘Amārah 47 °C
  4. Nasiriyah 46 °C
  5. Dezful 46 °C

Full ranking for August

October: top 5

  1. Khartoum 38 °C
  2. Wad Medani 38 °C
  3. Kassala 38 °C
  4. Mopti 38 °C
  5. Tahoua 37 °C

Full ranking for October

How this ranking is built

What is ranked
The average daily high temperature, in °C, in September, lowest first.
Period
1991–2020 climate normals: the same 30 years for every destination, so the list compares like with like.
Who is included
50 destinations in the world with a published climate page. Neighbouring places that share a climate series are shown once.
Ties
Equal values are ordered by population.
Sources
ERA5 / ERA5-Land reanalysis via Open-Meteo; sea temperature from NOAA OISST v2.1. Measured values are reproduced unchanged; only the ordering is ours.

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: ranking order, beach and comfort scores. 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.