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St. Moritz vs Reykjavík
Comparing St. Moritz change · Reykjavík change
Reykjavík is the warmer of the two — about 5°F on the annual average; Reykjavík is the wetter, with 24 in more rain a year, and St. Moritz the sunnier.
How the seasons compare
The differences between St. Moritz and Reykjavík, in everyday terms.
Summers
St. Moritz has much hotter summers
St. Moritz: Mild
Reykjavík: Cool
Winters
Reykjavík has far milder winters
St. Moritz: Bitterly cold
Reykjavík: Cold
Rain & snow
Reykjavík is wetter
St. Moritz: Moderate rainfall
Reykjavík: Wet
Sky
St. Moritz is sunnier
St. Moritz: Often cloudy
Reykjavík: Often grey
Month-by-month charts
Temperature
Reykjavík is the warmer of the two — about 5°F on the annual average.
Precipitation
Reykjavík is the wetter — about 24 in more across the year.
Clear skies
St. Moritz 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 (°F) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| St. Moritz | 30 | 33 | 39 | 46 | 55 | 63 | 67 | 66 | 58 | 51 | 39 | 31 |
| Reykjavík | 38 | 37 | 38 | 44 | 49 | 54 | 57 | 56 | 52 | 45 | 40 | 38 |
| Difference | +8 | +5 | -1 | -3 | -7 | -9 | -10 | -10 | -7 | -6 | +1 | +8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| St. Moritz | 30 | 33 | 39 | 46 | 55 | 63 |
| Reykjavík | 38 | 37 | 38 | 44 | 49 | 54 |
| Difference | +8 | +5 | -1 | -3 | -7 | -9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| St. Moritz | 67 | 66 | 58 | 51 | 39 | 31 |
| Reykjavík | 57 | 56 | 52 | 45 | 40 | 38 |
| Difference | -10 | -10 | -7 | -6 | +1 | +8 |
Avg low (°F) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| St. Moritz | 4 | 4 | 15 | 24 | 32 | 38 | 40 | 40 | 34 | 27 | 18 | 8 |
| Reykjavík | 29 | 28 | 29 | 34 | 39 | 44 | 47 | 47 | 43 | 37 | 32 | 31 |
| Difference | +26 | +24 | +14 | +10 | +7 | +6 | +7 | +7 | +9 | +10 | +14 | +23 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| St. Moritz | 4 | 4 | 15 | 24 | 32 | 38 |
| Reykjavík | 29 | 28 | 29 | 34 | 39 | 44 |
| Difference | +26 | +24 | +14 | +10 | +7 | +6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| St. Moritz | 40 | 40 | 34 | 27 | 18 | 8 |
| Reykjavík | 47 | 47 | 43 | 37 | 32 | 31 |
| Difference | +7 | +7 | +9 | +10 | +14 | +23 |
Precipitation (in) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| St. Moritz | 1.2 | 0.7 | 0.9 | 1.5 | 2.6 | 3.6 | 3.4 | 4 | 2.9 | 3 | 2.7 | 1.4 |
| Reykjavík | 5.2 | 5 | 4.3 | 3 | 3.7 | 2 | 3.8 | 5.3 | 5 | 4.5 | 5.9 | 4.9 |
| Difference | +4.1 | +4.2 | +3.4 | +1.5 | +1 | -1.6 | +0.3 | +1.3 | +2.1 | +1.5 | +3.1 | +3.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| St. Moritz | 1.2 | 0.7 | 0.9 | 1.5 | 2.6 | 3.6 |
| Reykjavík | 5.2 | 5 | 4.3 | 3 | 3.7 | 2 |
| Difference | +4.1 | +4.2 | +3.4 | +1.5 | +1 | -1.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| St. Moritz | 3.4 | 4 | 2.9 | 3 | 2.7 | 1.4 |
| Reykjavík | 3.8 | 5.3 | 5 | 4.5 | 5.9 | 4.9 |
| Difference | +0.3 | +1.3 | +2.1 | +1.5 | +3.1 | +3.4 |
Snowfall (in)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| St. Moritz | — | — | — | — | — | — | — | — | — | — | — | — |
| Reykjavík | 10.8 | 15.8 | 11.4 | 4.6 | 0.4 | 0 | 0 | 0 | 0 | 0.4 | 8.2 | 11.9 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| St. Moritz | — | — | — | — | — | — |
| Reykjavík | 10.8 | 15.8 | 11.4 | 4.6 | 0.4 | 0 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| St. Moritz | — | — | — | — | — | — |
| Reykjavík | 0 | 0 | 0 | 0.4 | 8.2 | 11.9 |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| St. Moritz | 68 | 70 | 72 | 75 | 75 | 69 | 62 | 61 | 63 | 65 | 70 | 70 |
| Reykjavík | 85 | 82 | 82 | 79 | 76 | 79 | 81 | 79 | 79 | 78 | 82 | 84 |
| Difference | +17 | +12 | +9 | +4 | +2 | +10 | +19 | +18 | +16 | +12 | +11 | +14 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| St. Moritz | 68 | 70 | 72 | 75 | 75 | 69 |
| Reykjavík | 85 | 82 | 82 | 79 | 76 | 79 |
| Difference | +17 | +12 | +9 | +4 | +2 | +10 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| St. Moritz | 62 | 61 | 63 | 65 | 70 | 70 |
| Reykjavík | 81 | 79 | 79 | 78 | 82 | 84 |
| Difference | +19 | +18 | +16 | +12 | +11 | +14 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| St. Moritz | 86 | 88 | 90 | 84 | 79 | 77 | 77 | 78 | 81 | 83 | 88 | 87 |
| Reykjavík | 88 | 87 | 86 | 84 | 83 | 83 | 85 | 86 | 86 | 88 | 88 | 88 |
| Difference | +1 | -1 | -4 | — | +4 | +6 | +8 | +8 | +6 | +4 | — | +1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| St. Moritz | 86 | 88 | 90 | 84 | 79 | 77 |
| Reykjavík | 88 | 87 | 86 | 84 | 83 | 83 |
| Difference | +1 | -1 | -4 | — | +4 | +6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| St. Moritz | 77 | 78 | 81 | 83 | 88 | 87 |
| Reykjavík | 85 | 86 | 86 | 88 | 88 | 88 |
| Difference | +8 | +8 | +6 | +4 | — | +1 |
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. St. Moritz trends → · Reykjavík trends →
Methodology & sources
St. Moritz
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Samedan, about 4 km from the city centre.
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 St. Moritz · change Reykjavík → · St. Moritz page · Reykjavík page