Home › Compare › Bilbao vs Castries
Bilbao vs Castries
Comparing Bilbao change · Castries change
Castries is the warmer of the two — about 12°C on the annual average; Castries is the wetter, with 806 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Bilbao and Castries, in everyday terms.
Summers
Castries has hotter summers
Bilbao: Warm
Castries: Warm
Winters
Castries has far milder winters
Bilbao: Cool
Castries: Stays warm
Rain & snow
Castries is wetter
Bilbao: Wet
Castries: Very wet
Sky
Castries is far sunnier
Bilbao: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 12°C on the annual average.
Precipitation
Castries is the wetter — about 806 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bilbao | 14 | 14 | 17 | 18 | 21 | 23 | 25 | 26 | 24 | 21 | 17 | 14 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +13 | +12 | +10 | +9 | +7 | +5 | +3 | +2 | +4 | +7 | +11 | +13 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Bilbao | 14 | 14 | 17 | 18 | 21 | 23 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Difference | +13 | +12 | +10 | +9 | +7 | +5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Bilbao | 25 | 26 | 24 | 21 | 17 | 14 |
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +3 | +2 | +4 | +7 | +11 | +13 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bilbao | 5 | 5 | 7 | 8 | 11 | 14 | 16 | 16 | 14 | 12 | 8 | 6 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +20 | +20 | +19 | +18 | +16 | +13 | +11 | +11 | +14 | +16 | +19 | +20 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Bilbao | 5 | 5 | 7 | 8 | 11 | 14 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Difference | +20 | +20 | +19 | +18 | +16 | +13 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Bilbao | 16 | 16 | 14 | 12 | 8 | 6 |
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +11 | +11 | +14 | +16 | +19 | +20 |
Precipitation (mm) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bilbao | 130 | 109 | 98 | 97 | 76 | 58 | 52 | 53 | 75 | 112 | 171 | 127 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | -17 | -33 | -31 | -7 | +38 | +76 | +164 | +239 | +149 | +135 | +72 | +22 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Bilbao | 130 | 109 | 98 | 97 | 76 | 58 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Difference | -17 | -33 | -31 | -7 | +38 | +76 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Bilbao | 52 | 53 | 75 | 112 | 171 | 127 |
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +164 | +239 | +149 | +135 | +72 | +22 |
Cloud cover (%) Bilbao runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bilbao | 77 | 75 | 72 | 72 | 72 | 67 | 63 | 63 | 63 | 71 | 77 | 78 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -39 | -37 | -30 | -23 | -20 | -9 | -13 | -17 | -13 | -20 | -31 | -37 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Bilbao | 77 | 75 | 72 | 72 | 72 | 67 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -39 | -37 | -30 | -23 | -20 | -9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Bilbao | 63 | 63 | 63 | 71 | 77 | 78 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -13 | -17 | -13 | -20 | -31 | -37 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bilbao | 79 | 78 | 78 | 78 | 78 | 78 | 76 | 73 | 72 | 74 | 77 | 79 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -3 | -3 | -3 | -2 | -1 | +1 | +3 | +6 | +6 | +5 | +2 | -2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Bilbao | 79 | 78 | 78 | 78 | 78 | 78 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -3 | -3 | -3 | -2 | -1 | +1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Bilbao | 76 | 73 | 72 | 74 | 77 | 79 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +3 | +6 | +6 | +5 | +2 | -2 |
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. Bilbao trends → · Castries trends →
Bilbao is projected to shift from Cfb to Csa by the 2071–2099 window (SSP2-4.5).
Methodology & sources
Bilbao
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Bilbao Aeropuerto, 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.
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 Bilbao · change Castries → · Bilbao page · Castries page