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Concarneau vs Castries
Comparing Concarneau change · Castries change
Castries is the warmer of the two — about 15°C on the annual average; Castries is the wetter, with 1120 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Concarneau and Castries, in everyday terms.
Summers
Castries has much hotter summers
Concarneau: Mild
Castries: Warm
Winters
Castries has far milder winters
Concarneau: Chilly
Castries: Stays warm
Rain & snow
Castries is much wetter
Concarneau: Moderate rainfall
Castries: Very wet
Sky
Castries is far sunnier
Concarneau: Often grey
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 15°C on the annual average.
Precipitation
Castries is the wetter — about 1120 mm 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 (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Concarneau | 10 | 10 | 12 | 14 | 17 | 20 | 22 | 22 | 20 | 16 | 13 | 10 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +17 | +16 | +15 | +13 | +11 | +8 | +7 | +7 | +9 | +12 | +15 | +17 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Concarneau | 10 | 10 | 12 | 14 | 17 | 20 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Difference | +17 | +16 | +15 | +13 | +11 | +8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Concarneau | 22 | 22 | 20 | 16 | 13 | 10 |
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +7 | +7 | +9 | +12 | +15 | +17 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Concarneau | 4 | 4 | 5 | 6 | 9 | 12 | 13 | 13 | 11 | 9 | 7 | 5 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +21 | +21 | +20 | +20 | +18 | +16 | +14 | +14 | +16 | +18 | +20 | +21 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Concarneau | 4 | 4 | 5 | 6 | 9 | 12 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Difference | +21 | +21 | +20 | +20 | +18 | +16 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Concarneau | 13 | 13 | 11 | 9 | 7 | 5 |
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +14 | +14 | +16 | +18 | +20 | +21 |
Precipitation (mm) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Concarneau | 100 | 90 | 59 | 56 | 47 | 52 | 52 | 45 | 39 | 86 | 108 | 107 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +13 | -14 | +8 | +33 | +67 | +81 | +164 | +246 | +185 | +160 | +135 | +43 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Concarneau | 100 | 90 | 59 | 56 | 47 | 52 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Difference | +13 | -14 | +8 | +33 | +67 | +81 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Concarneau | 52 | 45 | 39 | 86 | 108 | 107 |
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +164 | +246 | +185 | +160 | +135 | +43 |
Cloud cover (%) Concarneau runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Concarneau | 84 | 81 | 76 | 69 | 68 | 66 | 65 | 66 | 65 | 74 | 81 | 83 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -45 | -43 | -34 | -20 | -16 | -7 | -15 | -20 | -14 | -23 | -34 | -42 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Concarneau | 84 | 81 | 76 | 69 | 68 | 66 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -45 | -43 | -34 | -20 | -16 | -7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Concarneau | 65 | 66 | 65 | 74 | 81 | 83 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -15 | -20 | -14 | -23 | -34 | -42 |
Relative humidity (%) Concarneau runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Concarneau | 88 | 87 | 86 | 84 | 83 | 82 | 81 | 80 | 81 | 85 | 86 | 88 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -12 | -12 | -11 | -7 | -6 | -4 | -2 | -1 | -3 | -5 | -7 | -11 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Concarneau | 88 | 87 | 86 | 84 | 83 | 82 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -12 | -12 | -11 | -7 | -6 | -4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Concarneau | 81 | 80 | 81 | 85 | 86 | 88 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -2 | -1 | -3 | -5 | -7 | -11 |
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. Concarneau trends → · Castries trends →
Methodology & sources
Concarneau
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Quimper Pluguffan, a weather station, about 22 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 Concarneau · change Castries → · Concarneau page · Castries page