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Castries vs Oslo
Comparing Castries change · Oslo change
Castries is the warmer of the two — about 20°C on the annual average; Castries is the wetter, with 1127 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Castries and Oslo, in everyday terms.
Summers
Castries has much hotter summers
Castries: Warm
Oslo: Mild
Winters
Castries has far milder winters
Castries: Stays warm
Oslo: Cold
Rain & snow
Castries is much wetter
Castries: Very wet
Oslo: Moderate rainfall
Sky
Castries is far sunnier
Castries: Fairly sunny
Oslo: Often cloudy
Month-by-month charts
Temperature
Castries is the warmer of the two — about 20°C on the annual average.
Precipitation
Castries is the wetter — about 1127 mm more across the year.
Clear skies
Castries 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) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Oslo | 0 | 1 | 5 | 11 | 17 | 20 | 23 | 21 | 16 | 10 | 4 | 1 |
| Difference | -27 | -26 | -22 | -17 | -11 | -8 | -6 | -7 | -12 | -19 | -24 | -26 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Oslo | 0 | 1 | 5 | 11 | 17 | 20 |
| Difference | -27 | -26 | -22 | -17 | -11 | -8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Oslo | 23 | 21 | 16 | 10 | 4 | 1 |
| Difference | -6 | -7 | -12 | -19 | -24 | -26 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Oslo | -5 | -5 | -2 | 2 | 7 | 11 | 13 | 13 | 9 | 4 | -0 | -4 |
| Difference | -30 | -30 | -27 | -24 | -20 | -16 | -14 | -15 | -19 | -24 | -27 | -30 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Oslo | -5 | -5 | -2 | 2 | 7 | 11 |
| Difference | -30 | -30 | -27 | -24 | -20 | -16 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Oslo | 13 | 13 | 9 | 4 | -0 | -4 |
| Difference | -14 | -15 | -19 | -24 | -27 | -30 |
Precipitation (mm) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Oslo | 58 | 46 | 42 | 48 | 59 | 80 | 87 | 103 | 83 | 94 | 83 | 53 |
| Difference | -55 | -30 | -25 | -41 | -55 | -53 | -129 | -188 | -141 | -153 | -159 | -96 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Oslo | 58 | 46 | 42 | 48 | 59 | 80 |
| Difference | -55 | -30 | -25 | -41 | -55 | -53 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Oslo | 87 | 103 | 83 | 94 | 83 | 53 |
| Difference | -129 | -188 | -141 | -153 | -159 | -96 |
Cloud cover (%) Oslo runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Oslo | 76 | 75 | 69 | 68 | 65 | 67 | 68 | 68 | 70 | 73 | 76 | 76 |
| Difference | +38 | +36 | +27 | +18 | +12 | +9 | +18 | +21 | +19 | +22 | +30 | +35 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Oslo | 76 | 75 | 69 | 68 | 65 | 67 |
| Difference | +38 | +36 | +27 | +18 | +12 | +9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Oslo | 68 | 68 | 70 | 73 | 76 | 76 |
| Difference | +18 | +21 | +19 | +22 | +30 | +35 |
Relative humidity (%) Oslo runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Oslo | 98 | 98 | 93 | 83 | 78 | 78 | 80 | 84 | 87 | 93 | 97 | 97 |
| Difference | +22 | +23 | +18 | +7 | +1 | -1 | +2 | +5 | +8 | +14 | +17 | +21 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Oslo | 98 | 98 | 93 | 83 | 78 | 78 |
| Difference | +22 | +23 | +18 | +7 | +1 | -1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Oslo | 80 | 84 | 87 | 93 | 97 | 97 |
| Difference | +2 | +5 | +8 | +14 | +17 | +21 |
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. Castries trends → · Oslo trends →
Oslo from Cfb to Dfb.
Methodology & sources
Castries
Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
Precipitation — 1991–2020 normals computed from 10 years of daily observations at LE Lamentin, a weather station, about 66 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.
Oslo
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Oslo Blindern, a weather station, about 4 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 Castries · change Oslo → · Castries page · Oslo page