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Donostia / San Sebastián vs Roussillon
Comparing Donostia / San Sebastián change · Roussillon change
Donostia / San Sebastián and Roussillon have nearly identical year-round temperatures; Donostia / San Sebastián is the wetter, with 972 mm more rain a year, and Roussillon the sunnier.
How the seasons compare
The differences between Donostia / San Sebastián and Roussillon, in everyday terms.
Summers
Roussillon has much hotter summers
Donostia / San Sebastián: Mild
Roussillon: Hot
Winters
Donostia / San Sebastián has milder winters
Donostia / San Sebastián: Cool
Roussillon: Chilly
Rain & snow
Donostia / San Sebastián is much wetter
Donostia / San Sebastián: Wet
Roussillon: Fairly dry
Sky
Roussillon is sunnier
Donostia / San Sebastián: Often cloudy
Roussillon: Partly cloudy
Month-by-month charts
Temperature
Donostia / San Sebastián and Roussillon run remarkably close all year.
Precipitation
Donostia / San Sebastián is the wetter — about 972 mm more across the year.
Clear skies
Roussillon 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) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 12 | 13 | 15 | 17 | 20 | 22 | 24 | 25 | 23 | 20 | 15 | 13 |
| Roussillon | 11 | 12 | 17 | 21 | 25 | 30 | 32 | 32 | 27 | 22 | 15 | 11 |
| Difference | -1 | — | +2 | +4 | +5 | +7 | +8 | +7 | +4 | +1 | — | -2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 12 | 13 | 15 | 17 | 20 | 22 |
| Roussillon | 11 | 12 | 17 | 21 | 25 | 30 |
| Difference | -1 | — | +2 | +4 | +5 | +7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 24 | 25 | 23 | 20 | 15 | 13 |
| Roussillon | 32 | 32 | 27 | 22 | 15 | 11 |
| Difference | +8 | +7 | +4 | +1 | — | -2 |
Avg low (°C) Donostia / San Sebastián runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 5 | 5 | 7 | 9 | 12 | 15 | 17 | 17 | 14 | 12 | 8 | 6 |
| Roussillon | 0 | 1 | 4 | 7 | 11 | 15 | 17 | 16 | 13 | 9 | 5 | 1 |
| Difference | -5 | -4 | -3 | -2 | -1 | — | — | -1 | -2 | -3 | -3 | -5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 5 | 5 | 7 | 9 | 12 | 15 |
| Roussillon | 0 | 1 | 4 | 7 | 11 | 15 |
| Difference | -5 | -4 | -3 | -2 | -1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 17 | 17 | 14 | 12 | 8 | 6 |
| Roussillon | 17 | 16 | 13 | 9 | 5 | 1 |
| Difference | — | -1 | -2 | -3 | -3 | -5 |
Precipitation (mm) Donostia / San Sebastián runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 140 | 110 | 103 | 118 | 116 | 99 | 77 | 87 | 118 | 147 | 207 | 151 |
| Roussillon | 36 | 28 | 35 | 46 | 43 | 34 | 18 | 27 | 58 | 67 | 80 | 29 |
| Difference | -104 | -82 | -67 | -71 | -74 | -66 | -59 | -60 | -60 | -80 | -127 | -122 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 140 | 110 | 103 | 118 | 116 | 99 |
| Roussillon | 36 | 28 | 35 | 46 | 43 | 34 |
| Difference | -104 | -82 | -67 | -71 | -74 | -66 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 77 | 87 | 118 | 147 | 207 | 151 |
| Roussillon | 18 | 27 | 58 | 67 | 80 | 29 |
| Difference | -59 | -60 | -60 | -80 | -127 | -122 |
Cloud cover (%) Donostia / San Sebastián runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 73 | 69 | 67 | 70 | 70 | 66 | 63 | 62 | 61 | 68 | 73 | 73 |
| Roussillon | 58 | 57 | 57 | 61 | 61 | 51 | 41 | 44 | 50 | 59 | 61 | 60 |
| Difference | -15 | -12 | -11 | -9 | -9 | -16 | -22 | -18 | -11 | -9 | -13 | -13 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 73 | 69 | 67 | 70 | 70 | 66 |
| Roussillon | 58 | 57 | 57 | 61 | 61 | 51 |
| Difference | -15 | -12 | -11 | -9 | -9 | -16 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 63 | 62 | 61 | 68 | 73 | 73 |
| Roussillon | 41 | 44 | 50 | 59 | 61 | 60 |
| Difference | -22 | -18 | -11 | -9 | -13 | -13 |
Relative humidity (%) Donostia / San Sebastián runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 86 | 84 | 82 | 80 | 79 | 77 | 74 | 70 | 72 | 78 | 84 | 86 |
| Roussillon | 84 | 79 | 75 | 71 | 66 | 58 | 50 | 52 | 62 | 74 | 82 | 84 |
| Difference | -2 | -5 | -7 | -10 | -13 | -19 | -23 | -18 | -10 | -3 | -2 | -2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 86 | 84 | 82 | 80 | 79 | 77 |
| Roussillon | 84 | 79 | 75 | 71 | 66 | 58 |
| Difference | -2 | -5 | -7 | -10 | -13 | -19 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Donostia / San Sebastián | 74 | 70 | 72 | 78 | 84 | 86 |
| Roussillon | 50 | 52 | 62 | 74 | 82 | 84 |
| Difference | -23 | -18 | -10 | -3 | -2 | -2 |
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. Donostia / San Sebastián trends → · Roussillon trends →
Methodology & sources
Donostia / San Sebastián
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Biarritz-pays-basque, a weather station, about 40 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.
Roussillon
Temperature & precipitation — 1991–2020 normals computed from 21 years of daily observations at Carpentras, a weather station, about 28 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.
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