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Tokyo vs Castries
Comparing Tokyo change · Castries change
Castries is the warmer of the two — about 21°F on the annual average; Castries is the wetter, with 14 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Tokyo and Castries, in everyday terms.
Summers
Tokyo has hotter summers
Tokyo: Hot
Castries: Warm
Winters
Castries has far milder winters
Tokyo: Chilly
Castries: Stays warm
Rain & snow
Castries is wetter
Tokyo: Very wet
Castries: Very wet
Sky
Castries is sunnier
Tokyo: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 21°F on the annual average.
Precipitation
Castries is the wetter — about 14 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo | 50 | 52 | 58 | 67 | 74 | 79 | 86 | 88 | 82 | 72 | 62 | 54 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +31 | +28 | +23 | +15 | +8 | +4 | -3 | -5 | +2 | +12 | +20 | +28 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tokyo | 50 | 52 | 58 | 67 | 74 | 79 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | +31 | +28 | +23 | +15 | +8 | +4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tokyo | 86 | 88 | 82 | 72 | 62 | 54 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | -3 | -5 | +2 | +12 | +20 | +28 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo | 34 | 36 | 41 | 50 | 58 | 65 | 72 | 74 | 69 | 59 | 48 | 39 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +44 | +42 | +37 | +29 | +22 | +16 | +9 | +7 | +13 | +23 | +33 | +40 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tokyo | 34 | 36 | 41 | 50 | 58 | 65 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +44 | +42 | +37 | +29 | +22 | +16 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tokyo | 72 | 74 | 69 | 59 | 48 | 39 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +9 | +7 | +13 | +23 | +33 | +40 |
Precipitation (in) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo | 2.4 | 2.2 | 4.6 | 5.3 | 5.5 | 6.6 | 6.2 | 6.1 | 8.9 | 9.2 | 3.8 | 2.3 |
| 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 | +2.1 | +0.8 | -2 | -1.7 | -1 | -1.3 | +2.4 | +5.4 | — | +0.5 | +5.8 | +3.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tokyo | 2.4 | 2.2 | 4.6 | 5.3 | 5.5 | 6.6 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | +2.1 | +0.8 | -2 | -1.7 | -1 | -1.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tokyo | 6.2 | 6.1 | 8.9 | 9.2 | 3.8 | 2.3 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +2.4 | +5.4 | — | +0.5 | +5.8 | +3.6 |
Cloud cover (%) Tokyo runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo | 46 | 52 | 60 | 64 | 70 | 82 | 75 | 64 | 71 | 67 | 56 | 45 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -7 | -14 | -18 | -15 | -17 | -23 | -26 | -18 | -21 | -15 | -9 | -5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tokyo | 46 | 52 | 60 | 64 | 70 | 82 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -7 | -14 | -18 | -15 | -17 | -23 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tokyo | 75 | 64 | 71 | 67 | 56 | 45 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -26 | -18 | -21 | -15 | -9 | -5 |
Relative humidity (%) Tokyo runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo | 75 | 74 | 75 | 77 | 79 | 82 | 83 | 81 | 82 | 82 | 80 | 77 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | — | — | -1 | -1 | -1 | -4 | -4 | -2 | -3 | -3 | -1 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tokyo | 75 | 74 | 75 | 77 | 79 | 82 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | — | — | -1 | -1 | -1 | -4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tokyo | 83 | 81 | 82 | 82 | 80 | 77 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -4 | -2 | -3 | -3 | -1 | — |
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. Tokyo trends → · Castries trends →
Methodology & sources
Tokyo
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Tokyo, about 5 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 Tokyo · change Castries → · Tokyo page · Castries page