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Niagara-on-the-Lake vs Reykjavík
Comparing Niagara-on-the-Lake change · Reykjavík change
Niagara-on-the-Lake is the warmer of the two — about 5°C on the annual average; Reykjavík is the wetter, with 651 mm more rain a year, and Niagara-on-the-Lake the sunnier.
How the seasons compare
The differences between Niagara-on-the-Lake and Reykjavík, in everyday terms.
Summers
Niagara-on-the-Lake has far hotter summers
Niagara-on-the-Lake: Warm
Reykjavík: Cool
Winters
Reykjavík has milder winters
Niagara-on-the-Lake: Cold
Reykjavík: Cold
Rain & snow
Reykjavík is wetter
Niagara-on-the-Lake: Moderate rainfall
Reykjavík: Wet
Sky
Niagara-on-the-Lake is sunnier
Niagara-on-the-Lake: Often cloudy
Reykjavík: Often grey
Month-by-month charts
Temperature
Niagara-on-the-Lake is the warmer of the two — about 5°C on the annual average.
Precipitation
Reykjavík is the wetter — about 651 mm more across the year.
Clear skies
Niagara-on-the-Lake 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) Niagara-on-the-Lake runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 0 | 1 | 5 | 10 | 17 | 22 | 26 | 26 | 22 | 15 | 9 | 3 |
| Reykjavík | 3 | 3 | 4 | 6 | 9 | 12 | 14 | 13 | 11 | 7 | 5 | 4 |
| Difference | +3 | +2 | -1 | -4 | -7 | -10 | -12 | -12 | -11 | -8 | -4 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 0 | 1 | 5 | 10 | 17 | 22 |
| Reykjavík | 3 | 3 | 4 | 6 | 9 | 12 |
| Difference | +3 | +2 | -1 | -4 | -7 | -10 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 26 | 26 | 22 | 15 | 9 | 3 |
| Reykjavík | 14 | 13 | 11 | 7 | 5 | 4 |
| Difference | -12 | -12 | -11 | -8 | -4 | — |
Avg low (°C) Niagara-on-the-Lake runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | -5 | -5 | -2 | 3 | 9 | 15 | 19 | 19 | 15 | 9 | 3 | -2 |
| Reykjavík | -1 | -2 | -2 | 1 | 4 | 7 | 9 | 9 | 6 | 3 | 0 | -1 |
| Difference | +4 | +3 | — | -2 | -5 | -8 | -10 | -10 | -9 | -6 | -3 | +1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | -5 | -5 | -2 | 3 | 9 | 15 |
| Reykjavík | -1 | -2 | -2 | 1 | 4 | 7 |
| Difference | +4 | +3 | — | -2 | -5 | -8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 19 | 19 | 15 | 9 | 3 | -2 |
| Reykjavík | 9 | 9 | 6 | 3 | 0 | -1 |
| Difference | -10 | -10 | -9 | -6 | -3 | +1 |
Precipitation (mm) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 47 | 36 | 43 | 74 | 66 | 78 | 62 | 53 | 65 | 61 | 52 | 44 |
| Reykjavík | 133 | 127 | 109 | 75 | 93 | 50 | 95 | 135 | 128 | 114 | 149 | 123 |
| Difference | +86 | +91 | +66 | +2 | +27 | -28 | +33 | +81 | +63 | +53 | +97 | +79 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 47 | 36 | 43 | 74 | 66 | 78 |
| Reykjavík | 133 | 127 | 109 | 75 | 93 | 50 |
| Difference | +86 | +91 | +66 | +2 | +27 | -28 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 62 | 53 | 65 | 61 | 52 | 44 |
| Reykjavík | 95 | 135 | 128 | 114 | 149 | 123 |
| Difference | +33 | +81 | +63 | +53 | +97 | +79 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | — | — | — | — | — | — | — | — | — | — | — | — |
| Reykjavík | 28 | 40 | 29 | 12 | 1 | 0 | 0 | 0 | 0 | 1 | 21 | 30 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | — | — | — | — | — | — |
| Reykjavík | 28 | 40 | 29 | 12 | 1 | 0 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | — | — | — | — | — | — |
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 78 | 74 | 73 | 73 | 72 | 67 | 63 | 62 | 62 | 72 | 75 | 77 |
| Reykjavík | 85 | 82 | 82 | 79 | 76 | 79 | 81 | 79 | 79 | 78 | 82 | 84 |
| Difference | +7 | +8 | +9 | +5 | +4 | +13 | +18 | +18 | +17 | +5 | +6 | +7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 78 | 74 | 73 | 73 | 72 | 67 |
| Reykjavík | 85 | 82 | 82 | 79 | 76 | 79 |
| Difference | +7 | +8 | +9 | +5 | +4 | +13 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 63 | 62 | 62 | 72 | 75 | 77 |
| Reykjavík | 81 | 79 | 79 | 78 | 82 | 84 |
| Difference | +18 | +18 | +17 | +5 | +6 | +7 |
Relative humidity (%) Reykjavík runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 86 | 84 | 80 | 78 | 77 | 75 | 73 | 73 | 74 | 78 | 81 | 84 |
| Reykjavík | 88 | 87 | 86 | 84 | 83 | 83 | 85 | 86 | 86 | 88 | 88 | 88 |
| Difference | +2 | +3 | +6 | +6 | +6 | +8 | +12 | +13 | +12 | +9 | +7 | +4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 86 | 84 | 80 | 78 | 77 | 75 |
| Reykjavík | 88 | 87 | 86 | 84 | 83 | 83 |
| Difference | +2 | +3 | +6 | +6 | +6 | +8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Niagara-on-the-Lake | 73 | 73 | 74 | 78 | 81 | 84 |
| Reykjavík | 85 | 86 | 86 | 88 | 88 | 88 |
| Difference | +12 | +13 | +12 | +9 | +7 | +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. Niagara-on-the-Lake trends → · Reykjavík trends →
Methodology & sources
Niagara-on-the-Lake
Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Port Weller (aut), 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.
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