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Reykjavík vs London

Cfc Subpolar oceanicCfb Oceanic / temperate

Comparing Reykjavík change · London change

Bottom line

London is the warmer of the two — about 6°C on the annual average; Reykjavík is the wetter, with 588 mm more rain a year, and London the sunnier.

Warmer London 6°C on the year
Wetter Reykjavík 588 mm more a year
Sunnier London 9 pp less cloud
Colder winters Reykjavík 4°C colder nights

How the seasons compare

The differences between Reykjavík and London, in everyday terms.

Summers

London has far hotter summers

Reykjavík: Cool
London: Mild

Winters

London has milder winters

Reykjavík: Cold
London: Chilly

Rain & snow

Reykjavík is wetter

Reykjavík: Wet
London: Moderate rainfall

Sky

London is sunnier

Reykjavík: Often grey
London: Often cloudy

Month-by-month charts

Temperature

London is the warmer of the two — about 6°C on the annual average.

-10°0°10°20°30° JanAprJulOct ReykjavíkLondon

Precipitation

Reykjavík is the wetter — about 588 mm more across the year.

PRECIPITATION (mm) 075150 JanAprJulOct ReykjavíkLondon

Clear skies

London has the clearer skies — the higher line.

0%25%50%75%100% JanAprJulOct ReykjavíkLondon

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 (°C) London runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík3346912141311754
London881114172023221915118
Difference+4+5+7+8+8+8+9+9+8+7+6+4
Jan – JunJanFebMarAprMayJun
Reykjavík3346912
London8811141720
Difference+4+5+7+8+8+8
Jul – DecJulAugSepOctNovDec
Reykjavík141311754
London23221915118
Difference+9+9+8+7+6+4
Avg low (°C) London runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík-1-2-214799630-1
London2245811131311852
Difference+4+4+5+4+4+4+5+5+5+6+5+3
Jan – JunJanFebMarAprMayJun
Reykjavík-1-2-2147
London2245811
Difference+4+4+5+4+4+4
Jul – DecJulAugSepOctNovDec
Reykjavík99630-1
London131311852
Difference+5+5+5+6+5+3
Precipitation (mm) Reykjavík runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík13312710975935095135128114149123
London745145545458526862807769
Difference-59-76-64-21-38+8-43-67-65-34-73-55
Jan – JunJanFebMarAprMayJun
Reykjavík133127109759350
London745145545458
Difference-59-76-64-21-38+8
Jul – DecJulAugSepOctNovDec
Reykjavík95135128114149123
London526862807769
Difference-43-67-65-34-73-55
Snowfall (cm)
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík284029121000012130
London————————————
Difference————————————
Jan – JunJanFebMarAprMayJun
Reykjavík2840291210
London——————
Difference——————
Jul – DecJulAugSepOctNovDec
Reykjavík00012130
London——————
Difference——————
Cloud cover (%) Reykjavík runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík858282797679817979788284
London747474696971676868727574
Difference-11-8-8-10-7-9-14-12-11-5-7-10
Jan – JunJanFebMarAprMayJun
Reykjavík858282797679
London747474696971
Difference-11-8-8-10-7-9
Jul – DecJulAugSepOctNovDec
Reykjavík817979788284
London676868727574
Difference-14-12-11-5-7-10
Relative humidity (%) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Reykjavík888786848383858686888888
London939086827978767781879294
Difference+6+3—-3-4-5-9-9-5-1+5+7
Jan – JunJanFebMarAprMayJun
Reykjavík888786848383
London939086827978
Difference+6+3—-3-4-5
Jul – DecJulAugSepOctNovDec
Reykjavík858686888888
London767781879294
Difference-9-9-5-1+5+7

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 → · London 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.

London

Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Hampstead, a weather station, about 22 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 →

← change Reykjavík · change London → · Reykjavík page · London page