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Prague vs Reykjavík
Comparing Prague change · Reykjavík change
Prague is the warmer of the two — about 5°C on the annual average; Reykjavík is the wetter, with 740 mm more rain a year, and Prague the sunnier.
How the seasons compare
The differences between Prague and Reykjavík, in everyday terms.
Summers
Prague has far hotter summers
Prague: Mild
Reykjavík: Cool
Winters
Winters are similar
Prague: Cold
Reykjavík: Cold
Rain & snow
Reykjavík is much wetter
Prague: Moderate rainfall
Reykjavík: Wet
Sky
Prague is sunnier
Prague: Often cloudy
Reykjavík: Often grey
Month-by-month charts
Temperature
Prague is the warmer of the two — about 5°C on the annual average.
Precipitation
Reykjavík is the wetter — about 740 mm more across the year.
Clear skies
Prague has the clearer skies — the higher line.
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) Prague runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prague | 2 | 4 | 9 | 15 | 20 | 23 | 25 | 25 | 20 | 14 | 7 | 3 |
| Reykjavík | 3 | 3 | 4 | 6 | 9 | 12 | 14 | 13 | 11 | 7 | 5 | 4 |
| Difference | +1 | -1 | -5 | -9 | -11 | -11 | -11 | -12 | -9 | -7 | -2 | +1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Prague | 2 | 4 | 9 | 15 | 20 | 23 |
| Reykjavík | 3 | 3 | 4 | 6 | 9 | 12 |
| Difference | +1 | -1 | -5 | -9 | -11 | -11 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Prague | 25 | 25 | 20 | 14 | 7 | 3 |
| Reykjavík | 14 | 13 | 11 | 7 | 5 | 4 |
| Difference | -11 | -12 | -9 | -7 | -2 | +1 |
Avg low (°C) Prague runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prague | -3 | -3 | 0 | 4 | 9 | 12 | 14 | 13 | 9 | 5 | 1 | -2 |
| Reykjavík | -1 | -2 | -2 | 1 | 4 | 7 | 9 | 9 | 6 | 3 | 0 | -1 |
| Difference | +2 | — | -2 | -3 | -5 | -5 | -5 | -5 | -3 | -2 | -1 | +1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Prague | -3 | -3 | 0 | 4 | 9 | 12 |
| Reykjavík | -1 | -2 | -2 | 1 | 4 | 7 |
| Difference | +2 | — | -2 | -3 | -5 | -5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Prague | 14 | 13 | 9 | 5 | 1 | -2 |
| Reykjavík | 9 | 9 | 6 | 3 | 0 | -1 |
| Difference | -5 | -5 | -3 | -2 | -1 | +1 |
Precipitation (mm) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prague | 43 | 41 | 29 | 36 | 71 | 87 | 74 | 72 | 47 | 37 | 29 | 26 |
| Reykjavík | 133 | 127 | 109 | 75 | 93 | 50 | 95 | 135 | 128 | 114 | 149 | 123 |
| Difference | +90 | +85 | +80 | +40 | +22 | -37 | +21 | +63 | +81 | +77 | +121 | +97 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Prague | 43 | 41 | 29 | 36 | 71 | 87 |
| Reykjavík | 133 | 127 | 109 | 75 | 93 | 50 |
| Difference | +90 | +85 | +80 | +40 | +22 | -37 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Prague | 74 | 72 | 47 | 37 | 29 | 26 |
| Reykjavík | 95 | 135 | 128 | 114 | 149 | 123 |
| Difference | +21 | +63 | +81 | +77 | +121 | +97 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prague | — | — | — | — | — | — | — | — | — | — | — | — |
| Reykjavík | 28 | 40 | 29 | 12 | 1 | 0 | 0 | 0 | 0 | 1 | 21 | 30 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Prague | — | — | — | — | — | — |
| Reykjavík | 28 | 40 | 29 | 12 | 1 | 0 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Prague | — | — | — | — | — | — |
| Reykjavík | 0 | 0 | 0 | 1 | 21 | 30 |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prague | 77 | 75 | 73 | 67 | 69 | 71 | 68 | 65 | 66 | 73 | 77 | 77 |
| Reykjavík | 85 | 82 | 82 | 79 | 76 | 79 | 81 | 79 | 79 | 78 | 82 | 84 |
| Difference | +7 | +7 | +8 | +12 | +7 | +9 | +13 | +14 | +13 | +5 | +4 | +7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Prague | 77 | 75 | 73 | 67 | 69 | 71 |
| Reykjavík | 85 | 82 | 82 | 79 | 76 | 79 |
| Difference | +7 | +7 | +8 | +12 | +7 | +9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Prague | 68 | 65 | 66 | 73 | 77 | 77 |
| Reykjavík | 81 | 79 | 79 | 78 | 82 | 84 |
| Difference | +13 | +14 | +13 | +5 | +4 | +7 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prague | 92 | 89 | 83 | 76 | 72 | 68 | 64 | 64 | 71 | 81 | 90 | 93 |
| Reykjavík | 88 | 87 | 86 | 84 | 83 | 83 | 85 | 86 | 86 | 88 | 88 | 88 |
| Difference | -5 | -2 | +4 | +8 | +11 | +16 | +21 | +22 | +15 | +6 | -3 | -5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Prague | 92 | 89 | 83 | 76 | 72 | 68 |
| Reykjavík | 88 | 87 | 86 | 84 | 83 | 83 |
| Difference | -5 | -2 | +4 | +8 | +11 | +16 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Prague | 64 | 64 | 71 | 81 | 90 | 93 |
| Reykjavík | 85 | 86 | 86 | 88 | 88 | 88 |
| Difference | +21 | +22 | +15 | +6 | -3 | -5 |
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. Prague trends → · Reykjavík trends →
Prague is projected to shift from Cfb to Cfa by the 2071–2099 window (SSP2-4.5); Reykjavík from Cfc to Cfb.
Methodology & sources
Prague
Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Praha-libus, a weather station, about 10 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.
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.
← change Prague · change Reykjavík → · Prague page · Reykjavík page