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Aswān vs Castries
Comparing Aswān change · Castries change
Aswān and Castries have nearly identical year-round temperatures; Castries is the wetter, with 75 in more rain a year, and Aswān the sunnier.
How the seasons compare
The differences between Aswān and Castries, in everyday terms.
Summers
Aswān has far hotter summers
Aswān: Extreme heat
Castries: Warm
Winters
Castries has far milder winters
Aswān: Cool
Castries: Stays warm
Rain & snow
Castries is much wetter
Aswān: Very dry
Castries: Very wet
Sky
Aswān is far sunnier
Aswān: Sunny
Castries: Fairly sunny
Month-by-month charts
Temperature
Aswān and Castries run remarkably close all year.
Precipitation
Castries is the wetter — about 75 in more across the year.
Clear skies
Aswān 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) Aswān runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aswān | 74 | 78 | 86 | 96 | 103 | 107 | 107 | 107 | 104 | 97 | 85 | 76 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +6 | +2 | -5 | -14 | -20 | -24 | -24 | -24 | -20 | -14 | -3 | +5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Aswān | 74 | 78 | 86 | 96 | 103 | 107 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | +6 | +2 | -5 | -14 | -20 | -24 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Aswān | 107 | 107 | 104 | 97 | 85 | 76 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | -24 | -24 | -20 | -14 | -3 | +5 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aswān | 50 | 52 | 59 | 68 | 76 | 80 | 82 | 82 | 78 | 72 | 61 | 52 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +28 | +25 | +19 | +11 | +4 | +1 | -1 | — | +4 | +10 | +20 | +27 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Aswān | 50 | 52 | 59 | 68 | 76 | 80 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +28 | +25 | +19 | +11 | +4 | +1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Aswān | 82 | 82 | 78 | 72 | 61 | 52 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | -1 | — | +4 | +10 | +20 | +27 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aswān | 0.4 | 0 | 0.7 | 0.4 | 0.4 | 0 | 0 | 0 | 0 | 0.4 | 0.3 | 0 |
| 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 | +4.1 | +3 | +1.9 | +3.1 | +4.1 | +5.3 | +8.5 | +11.5 | +8.8 | +9.3 | +9.2 | +5.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Aswān | 0.4 | 0 | 0.7 | 0.4 | 0.4 | 0 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | +4.1 | +3 | +1.9 | +3.1 | +4.1 | +5.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Aswān | 0 | 0 | 0 | 0.4 | 0.3 | 0 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +8.5 | +11.5 | +8.8 | +9.3 | +9.2 | +5.9 |
Cloud cover (%) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aswān | 22 | 22 | 25 | 26 | 25 | 13 | 13 | 14 | 14 | 13 | 15 | 21 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | +16 | +16 | +17 | +23 | +27 | +45 | +37 | +32 | +37 | +38 | +32 | +19 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Aswān | 22 | 22 | 25 | 26 | 25 | 13 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | +16 | +16 | +17 | +23 | +27 | +45 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Aswān | 13 | 14 | 14 | 13 | 15 | 21 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | +37 | +32 | +37 | +38 | +32 | +19 |
Relative humidity (%) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aswān | 42 | 33 | 25 | 19 | 17 | 16 | 18 | 19 | 22 | 27 | 37 | 44 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +34 | +41 | +50 | +57 | +61 | +62 | +61 | +59 | +57 | +52 | +42 | +33 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Aswān | 42 | 33 | 25 | 19 | 17 | 16 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | +34 | +41 | +50 | +57 | +61 | +62 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Aswān | 18 | 19 | 22 | 27 | 37 | 44 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +61 | +59 | +57 | +52 | +42 | +33 |
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. Aswān trends → · Castries trends →
Both cities' Köppen climate types are projected to hold steady through 2099 (SSP2-4.5).
Methodology & sources
Aswān
Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Asswan, a weather station, about 18 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 Aswān · change Castries → · Aswān page · Castries page