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Castries vs Austin
Comparing Castries change · Austin change
Castries is the warmer of the two — about 12°F on the annual average; Castries is the wetter, with 41 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Castries and Austin, in everyday terms.
Summers
Austin has much hotter summers
Castries: Warm
Austin: Very hot
Winters
Castries has far milder winters
Castries: Stays warm
Austin: Chilly
Rain & snow
Castries is wetter
Castries: Very wet
Austin: Moderate rainfall
Sky
Castries is sunnier
Castries: Fairly sunny
Austin: Partly cloudy
Month-by-month charts
Temperature
Castries is the warmer of the two — about 12°F on the annual average.
Precipitation
Castries is the wetter — about 41 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Austin | 62 | 67 | 73 | 80 | 86 | 92 | 96 | 97 | 91 | 82 | 72 | 64 |
| Difference | -18 | -13 | -7 | -2 | +4 | +9 | +12 | +13 | +7 | -1 | -11 | -18 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Austin | 62 | 67 | 73 | 80 | 86 | 92 |
| Difference | -18 | -13 | -7 | -2 | +4 | +9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Austin | 96 | 97 | 91 | 82 | 72 | 64 |
| Difference | +12 | +13 | +7 | -1 | -11 | -18 |
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 |
| Austin | 39 | 42 | 50 | 56 | 65 | 72 | 73 | 74 | 69 | 58 | 48 | 41 |
| Difference | -39 | -35 | -28 | -23 | -15 | -9 | -8 | -8 | -14 | -24 | -32 | -39 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Austin | 39 | 42 | 50 | 56 | 65 | 72 |
| Difference | -39 | -35 | -28 | -23 | -15 | -9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Austin | 73 | 74 | 69 | 58 | 48 | 41 |
| Difference | -8 | -8 | -14 | -24 | -32 | -39 |
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 |
| Austin | 2.4 | 1.7 | 2.8 | 3.2 | 4.5 | 3.6 | 2.2 | 2.6 | 4 | 4.4 | 2.7 | 2.4 |
| Difference | -2.1 | -1.3 | +0.2 | -0.3 | — | -1.7 | -6.3 | -8.9 | -4.8 | -5.3 | -6.9 | -3.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Austin | 2.4 | 1.7 | 2.8 | 3.2 | 4.5 | 3.6 |
| Difference | -2.1 | -1.3 | +0.2 | -0.3 | — | -1.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Austin | 2.2 | 2.6 | 4 | 4.4 | 2.7 | 2.4 |
| Difference | -6.3 | -8.9 | -4.8 | -5.3 | -6.9 | -3.5 |
Cloud cover (%) Varies through 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 |
| Austin | 60 | 63 | 63 | 60 | 59 | 48 | 43 | 43 | 47 | 43 | 53 | 60 |
| Difference | +21 | +24 | +21 | +10 | +7 | -11 | -7 | -3 | -4 | -8 | +7 | +20 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Austin | 60 | 63 | 63 | 60 | 59 | 48 |
| Difference | +21 | +24 | +21 | +10 | +7 | -11 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Austin | 43 | 43 | 47 | 43 | 53 | 60 |
| Difference | -7 | -3 | -4 | -8 | +7 | +20 |
Relative humidity (%) Castries 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 |
| Austin | 72 | 72 | 71 | 68 | 70 | 68 | 63 | 61 | 67 | 68 | 71 | 72 |
| Difference | -3 | -2 | -3 | -8 | -7 | -11 | -15 | -18 | -12 | -11 | -8 | -5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Austin | 72 | 72 | 71 | 68 | 70 | 68 |
| Difference | -3 | -2 | -3 | -8 | -7 | -11 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Austin | 63 | 61 | 67 | 68 | 71 | 72 |
| Difference | -15 | -18 | -12 | -11 | -8 | -5 |
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 → · Austin 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.
Austin
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at San Marcos (NOAA GHCN station USC00417983), about 47 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.
← change Castries · change Austin → · Castries page · Austin page