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Tokyo vs Castries
Comparing Tokyo change · Castries change
Castries is the warmer of the two — about 11°C on the annual average; Castries is the wetter, with 364 mm 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 11°C on the annual average.
Precipitation
Castries is the wetter — about 364 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo | 10 | 11 | 14 | 19 | 24 | 26 | 30 | 31 | 28 | 22 | 17 | 12 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +17 | +16 | +13 | +8 | +5 | +2 | -1 | -3 | +1 | +7 | +11 | +15 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tokyo | 10 | 11 | 14 | 19 | 24 | 26 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Difference | +17 | +16 | +13 | +8 | +5 | +2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tokyo | 30 | 31 | 28 | 22 | 17 | 12 |
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | -1 | -3 | +1 | +7 | +11 | +15 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo | 1 | 2 | 5 | 10 | 15 | 19 | 22 | 24 | 20 | 15 | 9 | 4 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +24 | +23 | +20 | +16 | +12 | +9 | +5 | +4 | +7 | +13 | +18 | +22 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tokyo | 1 | 2 | 5 | 10 | 15 | 19 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Difference | +24 | +23 | +20 | +16 | +12 | +9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tokyo | 22 | 24 | 20 | 15 | 9 | 4 |
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +5 | +4 | +7 | +13 | +18 | +22 |
Precipitation (mm) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo | 60 | 56 | 116 | 134 | 140 | 168 | 156 | 155 | 225 | 235 | 96 | 58 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +54 | +19 | -50 | -44 | -26 | -34 | +60 | +137 | -1 | +12 | +146 | +91 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Tokyo | 60 | 56 | 116 | 134 | 140 | 168 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Difference | +54 | +19 | -50 | -44 | -26 | -34 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Tokyo | 156 | 155 | 225 | 235 | 96 | 58 |
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +60 | +137 | -1 | +12 | +146 | +91 |
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