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Castries vs Wellington
Comparing Castries change · Wellington change
Castries is the warmer of the two — about 14°C on the annual average; Castries is the wetter, with 1057 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Castries and Wellington, in everyday terms.
Summers
Castries has much hotter summers
Castries: Warm
Wellington: Mild
Winters
Castries has far milder winters
Castries: Stays warm
Wellington: Chilly
Rain & snow
Castries is wetter
Castries: Very wet
Wellington: Moderate rainfall
Sky
Castries is sunnier
Castries: Fairly sunny
Wellington: Partly cloudy
Month-by-month charts
Temperature
Castries is the warmer of the two — about 14°C on the annual average.
Precipitation
Castries is the wetter — about 1057 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 |
| Wellington | 21 | 22 | 20 | 18 | 16 | 14 | 13 | 13 | 15 | 16 | 17 | 20 |
| Difference | -6 | -5 | -7 | -10 | -12 | -15 | -16 | -15 | -14 | -13 | -11 | -8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Wellington | 21 | 22 | 20 | 18 | 16 | 14 |
| Difference | -6 | -5 | -7 | -10 | -12 | -15 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Wellington | 13 | 13 | 15 | 16 | 17 | 20 |
| Difference | -16 | -15 | -14 | -13 | -11 | -8 |
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 |
| Wellington | 13 | 13 | 11 | 9 | 8 | 6 | 4 | 5 | 7 | 9 | 10 | 12 |
| Difference | -13 | -12 | -14 | -17 | -19 | -22 | -23 | -22 | -21 | -19 | -17 | -14 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Wellington | 13 | 13 | 11 | 9 | 8 | 6 |
| Difference | -13 | -12 | -14 | -17 | -19 | -22 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Wellington | 4 | 5 | 7 | 9 | 10 | 12 |
| Difference | -23 | -22 | -21 | -19 | -17 | -14 |
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 |
| Wellington | 50 | 65 | 56 | 73 | 82 | 91 | 80 | 87 | 76 | 95 | 70 | 81 |
| Difference | -64 | -11 | -10 | -16 | -32 | -43 | -136 | -205 | -148 | -152 | -172 | -68 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Wellington | 50 | 65 | 56 | 73 | 82 | 91 |
| Difference | -64 | -11 | -10 | -16 | -32 | -43 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Wellington | 80 | 87 | 76 | 95 | 70 | 81 |
| Difference | -136 | -205 | -148 | -152 | -172 | -68 |
Cloud cover (%) Wellington 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 |
| Wellington | 60 | 57 | 56 | 59 | 58 | 61 | 62 | 60 | 62 | 64 | 63 | 64 |
| Difference | +21 | +18 | +14 | +10 | +6 | +2 | +12 | +14 | +11 | +13 | +17 | +24 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Wellington | 60 | 57 | 56 | 59 | 58 | 61 |
| Difference | +21 | +18 | +14 | +10 | +6 | +2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Wellington | 62 | 60 | 62 | 64 | 63 | 64 |
| Difference | +12 | +14 | +11 | +13 | +17 | +24 |
Relative humidity (%) Wellington 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 |
| Wellington | 80 | 79 | 81 | 84 | 86 | 87 | 87 | 87 | 86 | 85 | 83 | 82 |
| Difference | +4 | +5 | +6 | +8 | +9 | +8 | +9 | +8 | +7 | +5 | +4 | +6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Wellington | 80 | 79 | 81 | 84 | 86 | 87 |
| Difference | +4 | +5 | +6 | +8 | +9 | +8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Wellington | 87 | 87 | 86 | 85 | 83 | 82 |
| Difference | +9 | +8 | +7 | +5 | +4 | +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. Castries trends → · Wellington trends →
Both cities' Köppen climate types are projected to hold steady through 2099 (SSP2-4.5).
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.
Wellington
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Paraparaumu Aws, a weather station, about 46 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 Wellington → · Castries page · Wellington page