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Castries vs Utrecht
Comparing Castries change · Utrecht change
Castries is the warmer of the two — about 30°F on the annual average; Castries is the wetter, with 44 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Castries and Utrecht, in everyday terms.
Summers
Castries has much hotter summers
Castries: Warm
Utrecht: Mild
Winters
Castries has far milder winters
Castries: Stays warm
Utrecht: Chilly
Rain & snow
Castries is much wetter
Castries: Very wet
Utrecht: Moderate rainfall
Sky
Castries is far sunnier
Castries: Fairly sunny
Utrecht: Often grey
Month-by-month charts
Temperature
Castries is the warmer of the two — about 30°F on the annual average.
Precipitation
Castries is the wetter — about 44 in 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 (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Utrecht | 43 | 45 | 51 | 59 | 65 | 70 | 74 | 73 | 67 | 59 | 50 | 44 |
| Difference | -37 | -35 | -30 | -23 | -18 | -13 | -10 | -11 | -17 | -25 | -33 | -37 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Utrecht | 43 | 45 | 51 | 59 | 65 | 70 |
| Difference | -37 | -35 | -30 | -23 | -18 | -13 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Utrecht | 74 | 73 | 67 | 59 | 50 | 44 |
| Difference | -10 | -11 | -17 | -25 | -33 | -37 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Utrecht | 34 | 33 | 36 | 40 | 46 | 51 | 55 | 55 | 50 | 45 | 39 | 35 |
| Difference | -44 | -44 | -41 | -39 | -34 | -29 | -26 | -27 | -32 | -37 | -42 | -45 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Utrecht | 34 | 33 | 36 | 40 | 46 | 51 |
| Difference | -44 | -44 | -41 | -39 | -34 | -29 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Utrecht | 55 | 55 | 50 | 45 | 39 | 35 |
| Difference | -26 | -27 | -32 | -37 | -42 | -45 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Utrecht | 2.8 | 2.5 | 2.3 | 1.6 | 2.3 | 2.8 | 3.4 | 3.3 | 3.1 | 3.2 | 3.2 | 3.3 |
| Difference | -1.7 | -0.5 | -0.3 | -1.9 | -2.1 | -2.5 | -5.2 | -8.2 | -5.8 | -6.5 | -6.4 | -2.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Utrecht | 2.8 | 2.5 | 2.3 | 1.6 | 2.3 | 2.8 |
| Difference | -1.7 | -0.5 | -0.3 | -1.9 | -2.1 | -2.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Utrecht | 3.4 | 3.3 | 3.1 | 3.2 | 3.2 | 3.3 |
| Difference | -5.2 | -8.2 | -5.8 | -6.5 | -6.4 | -2.6 |
Cloud cover (%) Utrecht 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 |
| Utrecht | 76 | 74 | 72 | 68 | 68 | 72 | 69 | 69 | 70 | 74 | 77 | 77 |
| Difference | +37 | +35 | +30 | +19 | +16 | +13 | +19 | +23 | +19 | +22 | +31 | +36 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Utrecht | 76 | 74 | 72 | 68 | 68 | 72 |
| Difference | +37 | +35 | +30 | +19 | +16 | +13 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Utrecht | 69 | 69 | 70 | 74 | 77 | 77 |
| Difference | +19 | +23 | +19 | +22 | +31 | +36 |
Relative humidity (%) Utrecht 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 |
| Utrecht | 93 | 90 | 86 | 80 | 78 | 77 | 77 | 77 | 81 | 86 | 92 | 93 |
| Difference | +17 | +16 | +11 | +4 | — | -1 | -2 | -2 | +2 | +6 | +13 | +17 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Utrecht | 93 | 90 | 86 | 80 | 78 | 77 |
| Difference | +17 | +16 | +11 | +4 | — | -1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Utrecht | 77 | 77 | 81 | 86 | 92 | 93 |
| Difference | -2 | -2 | +2 | +6 | +13 | +17 |
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 → · Utrecht 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.
Utrecht
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at DE Bilt, 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.
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