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Tallinn vs Reykjavík
Comparing Tallinn change · Reykjavík change
Tallinn is the warmer of the two — about 3°C on the annual average; Reykjavík is the wetter, with 595 mm more rain a year, and Tallinn the sunnier.
How the seasons compare
The differences between Tallinn and Reykjavík, in everyday terms.
Summers
Tallinn has far hotter summers
Tallinn: Mild
Reykjavík: Cool
Winters
Winters are similar
Tallinn: Cold
Reykjavík: Cold
Rain & snow
Reykjavík is wetter
Tallinn: Moderate rainfall
Reykjavík: Wet
Sky
Tallinn is sunnier
Tallinn: Often cloudy
Reykjavík: Often grey
Month-by-month charts
Temperature
Tallinn is the warmer of the two — about 3°C on the annual average.
Precipitation
Reykjavík is the wetter — about 595 mm more across the year.
Clear skies
Tallinn 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tallinn | 1 | -1 | 3 | 9 | 15 | 20 | 23 | 21 | 17 | 11 | 5 | 2 |
| Reykjavík | 3 | 3 | 4 | 6 | 9 | 12 | 14 | 13 | 11 | 7 | 5 | 4 |
| Difference | +2 | +4 | — | -3 | -6 | -8 | -9 | -8 | -6 | -4 | -1 | +1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tallinn | 1 | -1 | 3 | 9 | 15 | 20 |
| Reykjavík | 3 | 3 | 4 | 6 | 9 | 12 |
| Difference | +2 | +4 | — | -3 | -6 | -8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tallinn | 23 | 21 | 17 | 11 | 5 | 2 |
| Reykjavík | 14 | 13 | 11 | 7 | 5 | 4 |
| Difference | -9 | -8 | -6 | -4 | -1 | +1 |
Avg low (°C) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tallinn | -5 | -3 | -0 | -0 | 9 | 9 | 18 | 18 | 14 | 9 | 0 | -2 |
| Reykjavík | -1 | -2 | -2 | 1 | 4 | 7 | 9 | 9 | 6 | 3 | 0 | -1 |
| Difference | +3 | +1 | -1 | +1 | -5 | -3 | -9 | -9 | -8 | -6 | — | +2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tallinn | -5 | -3 | -0 | -0 | 9 | 9 |
| Reykjavík | -1 | -2 | -2 | 1 | 4 | 7 |
| Difference | +3 | +1 | -1 | +1 | -5 | -3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tallinn | 18 | 18 | 14 | 9 | 0 | -2 |
| Reykjavík | 9 | 9 | 6 | 3 | 0 | -1 |
| Difference | -9 | -9 | -8 | -6 | — | +2 |
Precipitation (mm) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tallinn | 64 | 66 | 35 | 31 | 36 | 63 | 72 | 86 | 66 | 89 | 67 | 61 |
| Reykjavík | 133 | 127 | 109 | 75 | 93 | 50 | 95 | 135 | 128 | 114 | 149 | 123 |
| Difference | +69 | +61 | +74 | +44 | +56 | -13 | +23 | +49 | +61 | +26 | +82 | +63 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tallinn | 64 | 66 | 35 | 31 | 36 | 63 |
| Reykjavík | 133 | 127 | 109 | 75 | 93 | 50 |
| Difference | +69 | +61 | +74 | +44 | +56 | -13 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tallinn | 72 | 86 | 66 | 89 | 67 | 61 |
| Reykjavík | 95 | 135 | 128 | 114 | 149 | 123 |
| Difference | +23 | +49 | +61 | +26 | +82 | +63 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tallinn | — | — | — | — | — | — | — | — | — | — | — | — |
| Reykjavík | 28 | 40 | 29 | 12 | 1 | 0 | 0 | 0 | 0 | 1 | 21 | 30 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tallinn | — | — | — | — | — | — |
| Reykjavík | 28 | 40 | 29 | 12 | 1 | 0 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tallinn | — | — | — | — | — | — |
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tallinn | 81 | 76 | 68 | 65 | 57 | 61 | 59 | 61 | 68 | 77 | 82 | 83 |
| Reykjavík | 85 | 82 | 82 | 79 | 76 | 79 | 81 | 79 | 79 | 78 | 82 | 84 |
| Difference | +4 | +6 | +13 | +14 | +19 | +18 | +22 | +18 | +11 | +1 | -1 | +2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tallinn | 81 | 76 | 68 | 65 | 57 | 61 |
| Reykjavík | 85 | 82 | 82 | 79 | 76 | 79 |
| Difference | +4 | +6 | +13 | +14 | +19 | +18 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tallinn | 59 | 61 | 68 | 77 | 82 | 83 |
| Reykjavík | 81 | 79 | 79 | 78 | 82 | 84 |
| Difference | +22 | +18 | +11 | +1 | -1 | +2 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tallinn | 92 | 93 | 90 | 86 | 81 | 80 | 79 | 78 | 81 | 86 | 90 | 91 |
| Reykjavík | 88 | 87 | 86 | 84 | 83 | 83 | 85 | 86 | 86 | 88 | 88 | 88 |
| Difference | -4 | -6 | -3 | -1 | +2 | +3 | +6 | +8 | +5 | +2 | -2 | -4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tallinn | 92 | 93 | 90 | 86 | 81 | 80 |
| Reykjavík | 88 | 87 | 86 | 84 | 83 | 83 |
| Difference | -4 | -6 | -3 | -1 | +2 | +3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tallinn | 79 | 78 | 81 | 86 | 90 | 91 |
| Reykjavík | 85 | 86 | 86 | 88 | 88 | 88 |
| Difference | +6 | +8 | +5 | +2 | -2 | -4 |
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. Tallinn trends → · Reykjavík trends →
Tallinn is projected to shift from Cfb to Dfb by the 2071–2099 window (SSP2-4.5); Reykjavík from Cfc to Cfb.
Methodology & sources
Tallinn
Temperature & precipitation — 1991–2020 normals computed from 14 years of daily observations at Tallinn, a weather station, about 11 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 Tallinn · change Reykjavík → · Tallinn page · Reykjavík page