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Montreux vs Castries
Comparing Montreux change · Castries change
Castries is the warmer of the two — about 17°C on the annual average; Castries is the wetter, with 978 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Montreux and Castries, in everyday terms.
Summers
Castries has hotter summers
Montreux: Mild
Castries: Warm
Winters
Castries has far milder winters
Montreux: Cold
Castries: Stays warm
Rain & snow
Castries is wetter
Montreux: Moderate rainfall
Castries: Very wet
Sky
Castries is sunnier
Montreux: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 17°C on the annual average.
Precipitation
Castries is the wetter — about 978 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Montreux | 5 | 7 | 11 | 16 | 19 | 23 | 25 | 25 | 20 | 15 | 10 | 6 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +22 | +20 | +15 | +12 | +9 | +5 | +3 | +4 | +9 | +13 | +18 | +22 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Montreux | 5 | 7 | 11 | 16 | 19 | 23 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Difference | +22 | +20 | +15 | +12 | +9 | +5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Montreux | 25 | 25 | 20 | 15 | 10 | 6 |
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +3 | +4 | +9 | +13 | +18 | +22 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Montreux | -2 | -2 | 2 | 4 | 9 | 12 | 14 | 14 | 10 | 6 | 2 | -1 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +28 | +27 | +24 | +22 | +18 | +15 | +14 | +14 | +18 | +22 | +26 | +27 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Montreux | -2 | -2 | 2 | 4 | 9 | 12 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Difference | +28 | +27 | +24 | +22 | +18 | +15 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Montreux | 14 | 14 | 10 | 6 | 2 | -1 |
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +14 | +14 | +18 | +22 | +26 | +27 |
Precipitation (mm) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Montreux | 68 | 58 | 63 | 65 | 94 | 96 | 118 | 110 | 80 | 77 | 75 | 80 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +46 | +18 | +4 | +25 | +20 | +37 | +98 | +181 | +144 | +169 | +168 | +69 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Montreux | 68 | 58 | 63 | 65 | 94 | 96 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Difference | +46 | +18 | +4 | +25 | +20 | +37 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Montreux | 118 | 110 | 80 | 77 | 75 | 80 |
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +98 | +181 | +144 | +169 | +168 | +69 |
Cloud cover (%) Montreux runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Montreux | 68 | 69 | 68 | 69 | 72 | 65 | 59 | 59 | 61 | 66 | 71 | 71 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -30 | -30 | -27 | -20 | -20 | -7 | -10 | -12 | -10 | -15 | -25 | -31 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Montreux | 68 | 69 | 68 | 69 | 72 | 65 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -30 | -30 | -27 | -20 | -20 | -7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Montreux | 59 | 59 | 61 | 66 | 71 | 71 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -10 | -12 | -10 | -15 | -25 | -31 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Montreux | 84 | 84 | 81 | 78 | 77 | 76 | 72 | 71 | 76 | 80 | 84 | 84 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -9 | -9 | -6 | -2 | — | +3 | +6 | +8 | +3 | — | -5 | -7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Montreux | 84 | 84 | 81 | 78 | 77 | 76 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -9 | -9 | -6 | -2 | — | +3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Montreux | 72 | 71 | 76 | 80 | 84 | 84 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +6 | +8 | +3 | — | -5 | -7 |
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. Montreux trends → · Castries trends →
Methodology & sources
Montreux
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Aigle, about 12 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.
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 Montreux · change Castries → · Montreux page · Castries page