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Calgary vs Reykjavík
Comparing Calgary change · Reykjavík change
Calgary and Reykjavík have nearly identical year-round temperatures; Reykjavík is the wetter, with 897 mm more rain a year, and Calgary the sunnier.
How the seasons compare
The differences between Calgary and Reykjavík, in everyday terms.
Summers
Calgary has far hotter summers
Calgary: Mild
Reykjavík: Cool
Winters
Reykjavík has much milder winters
Calgary: Very cold
Reykjavík: Cold
Rain & snow
Reykjavík is much wetter
Calgary: Fairly dry
Reykjavík: Wet
Sky
Calgary is sunnier
Calgary: Often cloudy
Reykjavík: Often grey
Month-by-month charts
Temperature
Calgary and Reykjavík run remarkably close all year.
Precipitation
Reykjavík is the wetter — about 897 mm more across the year.
Clear skies
Calgary 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) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | -2 | 1 | 4 | 11 | 16 | 19 | 23 | 23 | 18 | 11 | 4 | -0 |
| Reykjavík | 3 | 3 | 4 | 6 | 9 | 12 | 14 | 13 | 11 | 7 | 5 | 4 |
| Difference | +5 | +2 | -1 | -4 | -7 | -7 | -9 | -9 | -7 | -4 | +1 | +4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | -2 | 1 | 4 | 11 | 16 | 19 |
| Reykjavík | 3 | 3 | 4 | 6 | 9 | 12 |
| Difference | +5 | +2 | -1 | -4 | -7 | -7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 23 | 23 | 18 | 11 | 4 | -0 |
| Reykjavík | 14 | 13 | 11 | 7 | 5 | 4 |
| Difference | -9 | -9 | -7 | -4 | +1 | +4 |
Avg low (°C) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | -14 | -11 | -8 | -2 | 3 | 7 | 10 | 9 | 4 | -1 | -8 | -12 |
| Reykjavík | -1 | -2 | -2 | 1 | 4 | 7 | 9 | 9 | 6 | 3 | 0 | -1 |
| Difference | +12 | +9 | +6 | +3 | +1 | -1 | -1 | — | +2 | +4 | +8 | +12 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | -14 | -11 | -8 | -2 | 3 | 7 |
| Reykjavík | -1 | -2 | -2 | 1 | 4 | 7 |
| Difference | +12 | +9 | +6 | +3 | +1 | -1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 10 | 9 | 4 | -1 | -8 | -12 |
| Reykjavík | 9 | 9 | 6 | 3 | 0 | -1 |
| Difference | -1 | — | +2 | +4 | +8 | +12 |
Precipitation (mm) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | 10 | 11 | 18 | 32 | 58 | 107 | 63 | 57 | 35 | 17 | 14 | 11 |
| Reykjavík | 133 | 127 | 109 | 75 | 93 | 50 | 95 | 135 | 128 | 114 | 149 | 123 |
| Difference | +123 | +116 | +91 | +43 | +35 | -57 | +32 | +77 | +92 | +98 | +135 | +112 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | 10 | 11 | 18 | 32 | 58 | 107 |
| Reykjavík | 133 | 127 | 109 | 75 | 93 | 50 |
| Difference | +123 | +116 | +91 | +43 | +35 | -57 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 63 | 57 | 35 | 17 | 14 | 11 |
| Reykjavík | 95 | 135 | 128 | 114 | 149 | 123 |
| Difference | +32 | +77 | +92 | +98 | +135 | +112 |
Snowfall (cm) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | 17 | 16 | 24 | 24 | 11 | 0 | 0 | 0 | 2 | 11 | 18 | 16 |
| Reykjavík | 28 | 40 | 29 | 12 | 1 | 0 | 0 | 0 | 0 | 1 | 21 | 30 |
| Difference | +10 | +24 | +5 | -13 | -10 | — | — | — | -2 | -10 | +2 | +15 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | 17 | 16 | 24 | 24 | 11 | 0 |
| Reykjavík | 28 | 40 | 29 | 12 | 1 | 0 |
| Difference | +10 | +24 | +5 | -13 | -10 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 0 | 0 | 2 | 11 | 18 | 16 |
| Reykjavík | 0 | 0 | 0 | 1 | 21 | 30 |
| Difference | — | — | -2 | -10 | +2 | +15 |
Cloud cover (%) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | 68 | 67 | 68 | 71 | 71 | 70 | 58 | 58 | 61 | 67 | 68 | 65 |
| Reykjavík | 85 | 82 | 82 | 79 | 76 | 79 | 81 | 79 | 79 | 78 | 82 | 84 |
| Difference | +17 | +15 | +13 | +8 | +5 | +9 | +23 | +22 | +18 | +11 | +14 | +19 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | 68 | 67 | 68 | 71 | 71 | 70 |
| Reykjavík | 85 | 82 | 82 | 79 | 76 | 79 |
| Difference | +17 | +15 | +13 | +8 | +5 | +9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 58 | 58 | 61 | 67 | 68 | 65 |
| Reykjavík | 81 | 79 | 79 | 78 | 82 | 84 |
| Difference | +23 | +22 | +18 | +11 | +14 | +19 |
Relative humidity (%) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calgary | 85 | 79 | 70 | 63 | 61 | 64 | 62 | 61 | 64 | 70 | 77 | 82 |
| Reykjavík | 88 | 87 | 86 | 84 | 83 | 83 | 85 | 86 | 86 | 88 | 88 | 88 |
| Difference | +3 | +8 | +16 | +22 | +22 | +19 | +23 | +25 | +22 | +18 | +11 | +6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Calgary | 85 | 79 | 70 | 63 | 61 | 64 |
| Reykjavík | 88 | 87 | 86 | 84 | 83 | 83 |
| Difference | +3 | +8 | +16 | +22 | +22 | +19 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Calgary | 62 | 61 | 64 | 70 | 77 | 82 |
| Reykjavík | 85 | 86 | 86 | 88 | 88 | 88 |
| Difference | +23 | +25 | +22 | +18 | +11 | +6 |
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. Calgary trends → · Reykjavík trends →
Methodology & sources
Calgary
Temperature & precipitation — 1991–2020 normals computed from 21 years of daily observations at Calgary Int'l A, a weather station, about 8 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 Calgary · change Reykjavík → · Calgary page · Reykjavík page