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Spiez vs Castries
Comparing Spiez change · Castries change
Castries is the warmer of the two — about 32°F on the annual average; Castries is the wetter, with 31 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Spiez and Castries, in everyday terms.
Summers
Castries has much hotter summers
Spiez: Mild
Castries: Warm
Winters
Castries has far milder winters
Spiez: Cold
Castries: Stays warm
Rain & snow
Castries is wetter
Spiez: Wet
Castries: Very wet
Sky
Castries is sunnier
Spiez: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 32°F on the annual average.
Precipitation
Castries is the wetter — about 31 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spiez | 38 | 42 | 51 | 58 | 66 | 72 | 76 | 75 | 67 | 57 | 46 | 39 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +42 | +38 | +30 | +23 | +17 | +11 | +8 | +9 | +17 | +26 | +36 | +43 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Spiez | 38 | 42 | 51 | 58 | 66 | 72 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | +42 | +38 | +30 | +23 | +17 | +11 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Spiez | 76 | 75 | 67 | 57 | 46 | 39 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +8 | +9 | +17 | +26 | +36 | +43 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spiez | 27 | 28 | 34 | 39 | 47 | 54 | 57 | 56 | 50 | 43 | 34 | 29 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +51 | +50 | +44 | +39 | +33 | +27 | +24 | +25 | +32 | +39 | +47 | +51 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Spiez | 27 | 28 | 34 | 39 | 47 | 54 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +51 | +50 | +44 | +39 | +33 | +27 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Spiez | 57 | 56 | 50 | 43 | 34 | 29 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +24 | +25 | +32 | +39 | +47 | +51 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spiez | 2.8 | 2.6 | 2.9 | 3.2 | 4.8 | 5 | 5.7 | 5.7 | 3.7 | 3.1 | 3.1 | 3.6 |
| 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 | +1.6 | +0.4 | -0.3 | +0.3 | -0.3 | +0.3 | +2.8 | +5.7 | +5.1 | +6.6 | +6.4 | +2.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Spiez | 2.8 | 2.6 | 2.9 | 3.2 | 4.8 | 5 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | +1.6 | +0.4 | -0.3 | +0.3 | -0.3 | +0.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Spiez | 5.7 | 5.7 | 3.7 | 3.1 | 3.1 | 3.6 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +2.8 | +5.7 | +5.1 | +6.6 | +6.4 | +2.3 |
Cloud cover (%) Spiez runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spiez | 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 |
|---|---|---|---|---|---|---|
| Spiez | 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 |
|---|---|---|---|---|---|---|
| Spiez | 59 | 59 | 61 | 66 | 71 | 71 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -10 | -12 | -10 | -15 | -25 | -31 |
Relative humidity (%) Spiez runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spiez | 86 | 86 | 87 | 84 | 81 | 78 | 77 | 78 | 81 | 83 | 87 | 86 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -10 | -11 | -13 | -8 | -3 | — | +1 | +1 | -2 | -4 | -8 | -9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Spiez | 86 | 86 | 87 | 84 | 81 | 78 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -10 | -11 | -13 | -8 | -3 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Spiez | 77 | 78 | 81 | 83 | 87 | 86 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +1 | +1 | -2 | -4 | -8 | -9 |
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. Spiez trends → · Castries trends →
Methodology & sources
Spiez
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Interlaken, about 14 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 Spiez · change Castries → · Spiez page · Castries page