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Santiago vs Castries
Comparing Santiago change · Castries change
Castries is the warmer of the two — about 21°F on the annual average; Castries is the wetter, with 64 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Santiago and Castries, in everyday terms.
Summers
Summers are nearly the same
Santiago: Warm
Castries: Warm
Winters
Castries has far milder winters
Santiago: Chilly
Castries: Stays warm
Rain & snow
Castries is much wetter
Santiago: Fairly dry
Castries: Very wet
Sky
Castries is sunnier
Santiago: Partly cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 21°F on the annual average.
Precipitation
Castries is the wetter — about 64 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) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Santiago | 86 | 85 | 82 | 73 | 66 | 60 | 60 | 63 | 67 | 73 | 79 | 83 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | -6 | -5 | -1 | +8 | +17 | +23 | +24 | +21 | +17 | +11 | +4 | -2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Santiago | 86 | 85 | 82 | 73 | 66 | 60 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | -6 | -5 | -1 | +8 | +17 | +23 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Santiago | 60 | 63 | 67 | 73 | 79 | 83 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +24 | +21 | +17 | +11 | +4 | -2 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Santiago | 57 | 56 | 53 | 48 | 44 | 40 | 39 | 40 | 44 | 47 | 51 | 55 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +21 | +22 | +24 | +31 | +36 | +41 | +42 | +41 | +38 | +35 | +30 | +25 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Santiago | 57 | 56 | 53 | 48 | 44 | 40 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +21 | +22 | +24 | +31 | +36 | +41 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Santiago | 39 | 40 | 44 | 47 | 51 | 55 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +42 | +41 | +38 | +35 | +30 | +25 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Santiago | 0 | 0.1 | 0.2 | 0.8 | 1.8 | 3.5 | 2.1 | 2.1 | 1.2 | 0.6 | 0.3 | 0.2 |
| 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 | +4.4 | +2.9 | +2.4 | +2.8 | +2.7 | +1.8 | +6.4 | +9.3 | +7.6 | +9.1 | +9.3 | +5.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Santiago | 0 | 0.1 | 0.2 | 0.8 | 1.8 | 3.5 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | +4.4 | +2.9 | +2.4 | +2.8 | +2.7 | +1.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Santiago | 2.1 | 2.1 | 1.2 | 0.6 | 0.3 | 0.2 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +6.4 | +9.3 | +7.6 | +9.1 | +9.3 | +5.6 |
Cloud cover (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Santiago | 33 | 31 | 36 | 53 | 68 | 73 | 70 | 69 | 68 | 62 | 48 | 38 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | +6 | +7 | +6 | -4 | -16 | -14 | -21 | -23 | -17 | -10 | -2 | +2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Santiago | 33 | 31 | 36 | 53 | 68 | 73 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | +6 | +7 | +6 | -4 | -16 | -14 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Santiago | 70 | 69 | 68 | 62 | 48 | 38 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -21 | -23 | -17 | -10 | -2 | +2 |
Relative humidity (%) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Santiago | 31 | 32 | 32 | 34 | 42 | 51 | 53 | 51 | 50 | 44 | 35 | 31 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +45 | +42 | +43 | +42 | +36 | +27 | +26 | +27 | +28 | +36 | +45 | +46 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Santiago | 31 | 32 | 32 | 34 | 42 | 51 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | +45 | +42 | +43 | +42 | +36 | +27 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Santiago | 53 | 51 | 50 | 44 | 35 | 31 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +26 | +27 | +28 | +36 | +45 | +46 |
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. Santiago trends → · Castries trends →
Methodology & sources
Santiago
Temperature & precipitation — the official 1991–2020 climate normals from the WMO's CLINO 1991–2020 collection, measured at Eulogiosancheztobalabaad, about 9 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 Santiago · change Castries → · Santiago page · Castries page