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Basel vs Castries
Comparing Basel change · Castries change
Castries is the warmer of the two — about 29°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 Basel and Castries, in everyday terms.
Summers
Castries has hotter summers
Basel: Warm
Castries: Warm
Winters
Castries has far milder winters
Basel: Cold
Castries: Stays warm
Rain & snow
Castries is much wetter
Basel: Moderate rainfall
Castries: Very wet
Sky
Castries is sunnier
Basel: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 29°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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basel | 41 | 45 | 53 | 61 | 68 | 75 | 78 | 78 | 69 | 60 | 49 | 42 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +39 | +35 | +27 | +20 | +15 | +8 | +5 | +6 | +15 | +24 | +34 | +39 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Basel | 41 | 45 | 53 | 61 | 68 | 75 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | +39 | +35 | +27 | +20 | +15 | +8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Basel | 78 | 78 | 69 | 60 | 49 | 42 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +5 | +6 | +15 | +24 | +34 | +39 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basel | 31 | 32 | 37 | 42 | 49 | 56 | 59 | 59 | 52 | 46 | 38 | 33 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +47 | +46 | +41 | +37 | +31 | +25 | +22 | +23 | +30 | +36 | +43 | +47 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Basel | 31 | 32 | 37 | 42 | 49 | 56 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +47 | +46 | +41 | +37 | +31 | +25 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Basel | 59 | 59 | 52 | 46 | 38 | 33 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +22 | +23 | +30 | +36 | +43 | +47 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basel | 1.9 | 1.8 | 1.9 | 2.5 | 3.8 | 3.4 | 3.5 | 3.5 | 2.8 | 2.9 | 2.6 | 2.6 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +2.6 | +1.2 | +0.7 | +1 | +0.6 | +1.9 | +5 | +8 | +6.1 | +6.8 | +7 | +3.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Basel | 1.9 | 1.8 | 1.9 | 2.5 | 3.8 | 3.4 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | +2.6 | +1.2 | +0.7 | +1 | +0.6 | +1.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Basel | 3.5 | 3.5 | 2.8 | 2.9 | 2.6 | 2.6 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +5 | +8 | +6.1 | +6.8 | +7 | +3.3 |
Cloud cover (%) Basel runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basel | 71 | 70 | 68 | 69 | 70 | 66 | 61 | 60 | 62 | 70 | 75 | 74 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -33 | -31 | -26 | -20 | -18 | -8 | -11 | -14 | -11 | -18 | -28 | -34 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Basel | 71 | 70 | 68 | 69 | 70 | 66 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -33 | -31 | -26 | -20 | -18 | -8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Basel | 61 | 60 | 62 | 70 | 75 | 74 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -11 | -14 | -11 | -18 | -28 | -34 |
Relative humidity (%) Basel runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basel | 91 | 88 | 83 | 79 | 79 | 77 | 76 | 76 | 80 | 86 | 90 | 91 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -15 | -13 | -8 | -3 | -1 | +1 | +3 | +3 | -2 | -7 | -11 | -14 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Basel | 91 | 88 | 83 | 79 | 79 | 77 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -15 | -13 | -8 | -3 | -1 | +1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Basel | 76 | 76 | 80 | 86 | 90 | 91 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +3 | +3 | -2 | -7 | -11 | -14 |
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. Basel trends → · Castries trends →
Methodology & sources
Basel
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Basel / Binningen, about 2 km from the city centre.
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.
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.
← change Basel · change Castries → · Basel page · Castries page