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Dinan vs Castries
Comparing Dinan change · Castries change
Castries is the warmer of the two — about 28°F on the annual average; Castries is the wetter, with 54 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Dinan and Castries, in everyday terms.
Summers
Castries has much hotter summers
Dinan: Mild
Castries: Warm
Winters
Castries has far milder winters
Dinan: Chilly
Castries: Stays warm
Rain & snow
Castries is much wetter
Dinan: Moderate rainfall
Castries: Very wet
Sky
Castries is sunnier
Dinan: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 28°F on the annual average.
Precipitation
Castries is the wetter — about 54 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) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dinan | 48 | 50 | 54 | 58 | 63 | 69 | 72 | 72 | 68 | 62 | 54 | 49 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +32 | +30 | +27 | +23 | +19 | +15 | +12 | +12 | +16 | +22 | +28 | +32 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Dinan | 48 | 50 | 54 | 58 | 63 | 69 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | +32 | +30 | +27 | +23 | +19 | +15 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Dinan | 72 | 72 | 68 | 62 | 54 | 49 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +12 | +12 | +16 | +22 | +28 | +32 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dinan | 39 | 38 | 41 | 43 | 48 | 53 | 56 | 56 | 53 | 49 | 43 | 39 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +39 | +39 | +37 | +36 | +32 | +28 | +25 | +26 | +29 | +33 | +37 | +40 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Dinan | 39 | 38 | 41 | 43 | 48 | 53 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +39 | +39 | +37 | +36 | +32 | +28 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Dinan | 56 | 56 | 53 | 49 | 43 | 39 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +25 | +26 | +29 | +33 | +37 | +40 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dinan | 1.9 | 1.9 | 1.5 | 1.6 | 1.9 | 1.6 | 1.3 | 1.8 | 1.6 | 2.3 | 2.8 | 2.6 |
| 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 | +2.6 | +1.1 | +1.1 | +1.9 | +2.6 | +3.6 | +7.2 | +9.7 | +7.2 | +7.4 | +6.8 | +3.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Dinan | 1.9 | 1.9 | 1.5 | 1.6 | 1.9 | 1.6 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | +2.6 | +1.1 | +1.1 | +1.9 | +2.6 | +3.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Dinan | 1.3 | 1.8 | 1.6 | 2.3 | 2.8 | 2.6 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +7.2 | +9.7 | +7.2 | +7.4 | +6.8 | +3.3 |
Cloud cover (%) Dinan runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dinan | 73 | 72 | 69 | 66 | 66 | 64 | 62 | 62 | 60 | 68 | 71 | 71 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -34 | -33 | -27 | -16 | -14 | -5 | -12 | -16 | -9 | -16 | -24 | -31 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Dinan | 73 | 72 | 69 | 66 | 66 | 64 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -34 | -33 | -27 | -16 | -14 | -5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Dinan | 62 | 62 | 60 | 68 | 71 | 71 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -12 | -16 | -9 | -16 | -24 | -31 |
Relative humidity (%) Dinan runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dinan | 90 | 87 | 84 | 81 | 80 | 79 | 78 | 78 | 80 | 85 | 89 | 91 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -15 | -13 | -9 | -5 | -2 | — | — | — | -1 | -6 | -10 | -14 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Dinan | 90 | 87 | 84 | 81 | 80 | 79 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -15 | -13 | -9 | -5 | -2 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Dinan | 78 | 78 | 80 | 85 | 89 | 91 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | — | — | -1 | -6 | -10 | -14 |
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. Dinan trends → · Castries trends →
Methodology & sources
Dinan
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Dinard Pleurtuit Saint Malo, a weather station, about 15 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 Dinan · change Castries → · Dinan page · Castries page