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Reykjavík vs Saint Petersburg

Cfc Subpolar oceanicDfb Warm-summer humid continental

Comparing Reykjavík change · Saint Petersburg change

Bottom line

Saint Petersburg is the warmer of the two — about 3°F on the annual average; Reykjavík is the wetter, with 26 in more rain a year, and Saint Petersburg the sunnier.

Warmer Saint Petersburg 3°F on the year
Wetter Reykjavík 26 in more a year
Sunnier Saint Petersburg 11 pp less cloud
Colder winters Saint Petersburg 10°F colder nights

How the seasons compare

The differences between Reykjavík and Saint Petersburg, in everyday terms.

Summers

Saint Petersburg has far hotter summers

Reykjavík: Cool
Saint Petersburg: Mild

Winters

Reykjavík has much milder winters

Reykjavík: Cold
Saint Petersburg: Very cold

Rain & snow

Reykjavík is wetter

Reykjavík: Wet
Saint Petersburg: Moderate rainfall

Sky

Saint Petersburg is sunnier

Reykjavík: Often grey
Saint Petersburg: Often cloudy

Month-by-month charts

Temperature

Saint Petersburg is the warmer of the two — about 3°F on the annual average.

20°40°60°80° JanAprJulOct ReykjavíkSaint Petersburg

Precipitation

Reykjavík is the wetter — about 26 in more across the year.

PRECIPITATION (in) 036 JanAprJulOct ReykjavíkSaint Petersburg

Clear skies

Saint Petersburg has the clearer skies — the higher line.

0%25%50%75%100% JanAprJulOct ReykjavíkSaint Petersburg

Exact monthly numbers

Tap a metric to open its full table. Desktop shows all twelve months; on a phone each metric splits into Jan–Jun and Jul–Dec.

Avg high (°F) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík383738444954575652454038
Saint Petersburg272736496169747160473731
Difference-10-10-2+6+13+15+17+15+9+2-4-8
Jan – JunJanFebMarAprMayJun
Reykjavík383738444954
Saint Petersburg272736496169
Difference-10-10-2+6+13+15
Jul – DecJulAugSepOctNovDec
Reykjavík575652454038
Saint Petersburg747160473731
Difference+17+15+9+2-4-8
Avg low (°F) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík292829343944474743373231
Saint Petersburg191825354554605749393023
Difference-11-10-4+1+6+10+12+10+5+2-2-7
Jan – JunJanFebMarAprMayJun
Reykjavík292829343944
Saint Petersburg191825354554
Difference-11-10-4+1+6+10
Jul – DecJulAugSepOctNovDec
Reykjavík474743373231
Saint Petersburg605749393023
Difference+12+10+5+2-2-7
Precipitation (in) Reykjavík runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík5.254.333.723.85.354.55.94.9
Saint Petersburg1.81.41.41.51.82.73.33.42.32.52.22
Difference-3.4-3.6-2.9-1.5-1.8+0.7-0.5-1.9-2.8-2-3.7-2.9
Jan – JunJanFebMarAprMayJun
Reykjavík5.254.333.72
Saint Petersburg1.81.41.41.51.82.7
Difference-3.4-3.6-2.9-1.5-1.8+0.7
Jul – DecJulAugSepOctNovDec
Reykjavík3.85.354.55.94.9
Saint Petersburg3.33.42.32.52.22
Difference-0.5-1.9-2.8-2-3.7-2.9
Snowfall (in)
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík10.815.811.44.60.400000.48.211.9
Saint Petersburg
Difference
Jan – JunJanFebMarAprMayJun
Reykjavík10.815.811.44.60.40
Saint Petersburg
Difference
Jul – DecJulAugSepOctNovDec
Reykjavík0000.48.211.9
Saint Petersburg
Difference
Cloud cover (%) Reykjavík runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík858282797679817979788284
Saint Petersburg757265666365646370767678
Difference-10-10-16-13-13-14-17-17-9-2-5-6
Jan – JunJanFebMarAprMayJun
Reykjavík858282797679
Saint Petersburg757265666365
Difference-10-10-16-13-13-14
Jul – DecJulAugSepOctNovDec
Reykjavík817979788284
Saint Petersburg646370767678
Difference-17-17-9-2-5-6
Relative humidity (%) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík888786848383858686888888
Saint Petersburg979793857879818286919597
Difference+10+10+7-5-4-4-4-1+4+7+9
Jan – JunJanFebMarAprMayJun
Reykjavík888786848383
Saint Petersburg979793857879
Difference+10+10+7-5-4
Jul – DecJulAugSepOctNovDec
Reykjavík858686888888
Saint Petersburg818286919597
Difference-4-4-1+4+7+9

How both climates are changing

Both cities are warming. Each city has its own warming trend; see its trends page for the year-by-year detail. Reykjavík trends → · Saint Petersburg trends →

Reykjavík is projected to shift from Cfc to Cfb by the 2071–2099 window (SSP2-4.5).

Methodology & sources

Reykjavík

Temperature & precipitation — 1991–2020 normals computed from 11 years of daily observations at Keflavik, a weather station, about 39 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

Saint Petersburg

Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at St. Petersburg, a weather station, about 3 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →