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Castries vs Tunis
Comparing Castries change · Tunis change
Castries is the warmer of the two — about 8°C on the annual average; Castries is the wetter, with 1477 mm more rain a year.
How the seasons compare
The differences between Castries and Tunis, in everyday terms.
Summers
Tunis has much hotter summers
Castries: Warm
Tunis: Hot
Winters
Castries has far milder winters
Castries: Stays warm
Tunis: Cool
Rain & snow
Castries is much wetter
Castries: Very wet
Tunis: Fairly dry
Sky
Similar amounts of sun
Castries: Fairly sunny
Tunis: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 8°C on the annual average.
Precipitation
Castries is the wetter — about 1477 mm more across the year.
Clear skies
The two cities see a similar amount of sun.
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) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Tunis | 16 | 17 | 19 | 22 | 26 | 31 | 34 | 35 | 31 | 27 | 22 | 18 |
| Difference | -10 | -10 | -7 | -5 | -2 | +3 | +6 | +6 | +2 | -2 | -7 | -10 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Tunis | 16 | 17 | 19 | 22 | 26 | 31 |
| Difference | -10 | -10 | -7 | -5 | -2 | +3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Tunis | 34 | 35 | 31 | 27 | 22 | 18 |
| Difference | +6 | +6 | +2 | -2 | -7 | -10 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Tunis | 8 | 8 | 10 | 12 | 15 | 19 | 22 | 23 | 21 | 17 | 13 | 9 |
| Difference | -18 | -17 | -16 | -14 | -12 | -8 | -5 | -5 | -7 | -10 | -15 | -17 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Tunis | 8 | 8 | 10 | 12 | 15 | 19 |
| Difference | -18 | -17 | -16 | -14 | -12 | -8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Tunis | 22 | 23 | 21 | 17 | 13 | 9 |
| Difference | -5 | -5 | -7 | -10 | -15 | -17 |
Precipitation (mm) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Tunis | 60 | 55 | 45 | 38 | 25 | 13 | 3 | 13 | 53 | 54 | 59 | 67 |
| Difference | -53 | -21 | -21 | -52 | -89 | -120 | -213 | -278 | -171 | -192 | -184 | -82 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Tunis | 60 | 55 | 45 | 38 | 25 | 13 |
| Difference | -53 | -21 | -21 | -52 | -89 | -120 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Tunis | 3 | 13 | 53 | 54 | 59 | 67 |
| Difference | -213 | -278 | -171 | -192 | -184 | -82 |
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 |
| Tunis | 55 | 55 | 52 | 51 | 42 | 30 | 18 | 23 | 41 | 46 | 51 | 54 |
| Difference | +16 | +16 | +10 | +1 | -10 | -29 | -32 | -23 | -10 | -6 | +5 | +13 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Tunis | 55 | 55 | 52 | 51 | 42 | 30 |
| Difference | +16 | +16 | +10 | +1 | -10 | -29 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Tunis | 18 | 23 | 41 | 46 | 51 | 54 |
| Difference | -32 | -23 | -10 | -6 | +5 | +13 |
Relative humidity (%) Varies through 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 |
| Tunis | 78 | 77 | 75 | 72 | 67 | 61 | 57 | 59 | 67 | 72 | 75 | 77 |
| Difference | +3 | +3 | — | -4 | -10 | -17 | -21 | -20 | -12 | -7 | -5 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Tunis | 78 | 77 | 75 | 72 | 67 | 61 |
| Difference | +3 | +3 | — | -4 | -10 | -17 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Tunis | 57 | 59 | 67 | 72 | 75 | 77 |
| Difference | -21 | -20 | -12 | -7 | -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 → · Tunis trends →
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.
Tunis
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Carthage, a weather station, about 7 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 Castries · change Tunis → · Castries page · Tunis page