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Castries vs Arequipa
Comparing Castries change · Arequipa change
Castries is the warmer of the two — about 11°C on the annual average; Castries is the wetter, with 1863 mm more rain a year.
How the seasons compare
The differences between Castries and Arequipa, in everyday terms.
Summers
Castries has much hotter summers
Castries: Warm
Arequipa: Mild
Winters
Castries has far milder winters
Castries: Stays warm
Arequipa: Cool
Rain & snow
Castries is much wetter
Castries: Very wet
Arequipa: Very dry
Sky
Similar amounts of sun
Castries: Fairly sunny
Arequipa: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 11°C on the annual average.
Precipitation
Castries is the wetter — about 1863 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) Castries runs higher most of 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 |
| Arequipa | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 |
| Difference | -4 | -5 | -4 | -5 | -5 | -5 | -6 | -5 | -5 | -5 | -5 | -4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Arequipa | 22 | 22 | 23 | 23 | 23 | 23 |
| Difference | -4 | -5 | -4 | -5 | -5 | -5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Arequipa | 23 | 23 | 24 | 24 | 23 | 23 |
| Difference | -6 | -5 | -5 | -5 | -5 | -4 |
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 |
| Arequipa | 11 | 12 | 11 | 10 | 8 | 7 | 7 | 8 | 9 | 9 | 9 | 10 |
| Difference | -14 | -14 | -14 | -16 | -19 | -20 | -20 | -20 | -19 | -18 | -18 | -16 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Arequipa | 11 | 12 | 11 | 10 | 8 | 7 |
| Difference | -14 | -14 | -14 | -16 | -19 | -20 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Arequipa | 7 | 8 | 9 | 9 | 9 | 10 |
| Difference | -20 | -20 | -19 | -18 | -18 | -16 |
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 |
| Arequipa | 32 | 44 | 17 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3 |
| Difference | -81 | -32 | -49 | -88 | -114 | -134 | -216 | -291 | -224 | -246 | -243 | -146 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Arequipa | 32 | 44 | 17 | 1 | 0 | 0 |
| Difference | -81 | -32 | -49 | -88 | -114 | -134 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Arequipa | 0 | 1 | 0 | 0 | 0 | 3 |
| Difference | -216 | -291 | -224 | -246 | -243 | -146 |
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 |
| Arequipa | 65 | 68 | 57 | 40 | 28 | 26 | 25 | 27 | 28 | 36 | 40 | 54 |
| Difference | +27 | +29 | +16 | -9 | -24 | -33 | -25 | -20 | -23 | -15 | -6 | +13 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Arequipa | 65 | 68 | 57 | 40 | 28 | 26 |
| Difference | +27 | +29 | +16 | -9 | -24 | -33 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Arequipa | 25 | 27 | 28 | 36 | 40 | 54 |
| Difference | -25 | -20 | -23 | -15 | -6 | +13 |
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 |
| Arequipa | 64 | 68 | 66 | 55 | 40 | 36 | 33 | 33 | 35 | 38 | 43 | 54 |
| Difference | -11 | -7 | -8 | -21 | -37 | -43 | -46 | -46 | -43 | -41 | -36 | -23 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Arequipa | 64 | 68 | 66 | 55 | 40 | 36 |
| Difference | -11 | -7 | -8 | -21 | -37 | -43 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Arequipa | 33 | 33 | 35 | 38 | 43 | 54 |
| Difference | -46 | -46 | -43 | -41 | -36 | -23 |
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 → · Arequipa 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.
Arequipa
Temperature & precipitation — the official 1991–2020 climate normals from SENAMHI, Peru's national weather service, measured at La Pampilla, about 2 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 Arequipa → · Castries page · Arequipa page