Home › Compare › Hong Kong vs Castries
Hong Kong vs Castries
Comparing Hong Kong change · Castries change
Castries is the warmer of the two — about 3°C on the annual average; Castries is the wetter, with 279 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Hong Kong and Castries, in everyday terms.
Summers
Hong Kong has hotter summers
Hong Kong: Hot
Castries: Warm
Winters
Castries has much milder winters
Hong Kong: Mild
Castries: Stays warm
Rain & snow
Castries is wetter
Hong Kong: Very wet
Castries: Very wet
Sky
Castries is sunnier
Hong Kong: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 3°C on the annual average.
Precipitation
Castries is the wetter — about 279 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) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hong Kong | 20 | 20 | 23 | 27 | 30 | 32 | 33 | 32 | 32 | 30 | 26 | 21 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +7 | +6 | +4 | +1 | -2 | -3 | -4 | -4 | -3 | -1 | +2 | +6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Hong Kong | 20 | 20 | 23 | 27 | 30 | 32 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Difference | +7 | +6 | +4 | +1 | -2 | -3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Hong Kong | 33 | 32 | 32 | 30 | 26 | 21 |
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | -4 | -4 | -3 | -1 | +2 | +6 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hong Kong | 14 | 15 | 18 | 21 | 25 | 27 | 27 | 27 | 26 | 24 | 20 | 15 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +12 | +10 | +8 | +5 | +2 | — | — | +1 | +2 | +4 | +7 | +11 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Hong Kong | 14 | 15 | 18 | 21 | 25 | 27 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Difference | +12 | +10 | +8 | +5 | +2 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Hong Kong | 27 | 27 | 26 | 24 | 20 | 15 |
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | — | +1 | +2 | +4 | +7 | +11 |
Precipitation (mm) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hong Kong | 31 | 26 | 61 | 130 | 231 | 346 | 244 | 310 | 199 | 48 | 29 | 28 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +82 | +50 | +5 | -41 | -117 | -212 | -28 | -19 | +25 | +199 | +214 | +122 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Hong Kong | 31 | 26 | 61 | 130 | 231 | 346 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Difference | +82 | +50 | +5 | -41 | -117 | -212 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Hong Kong | 244 | 310 | 199 | 48 | 29 | 28 |
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | -28 | -19 | +25 | +199 | +214 | +122 |
Cloud cover (%) Hong Kong runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hong Kong | 60 | 70 | 76 | 75 | 76 | 79 | 73 | 73 | 65 | 49 | 52 | 52 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -21 | -32 | -34 | -26 | -24 | -20 | -23 | -27 | -14 | +2 | -6 | -11 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Hong Kong | 60 | 70 | 76 | 75 | 76 | 79 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -21 | -32 | -34 | -26 | -24 | -20 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Hong Kong | 73 | 73 | 65 | 49 | 52 | 52 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -23 | -27 | -14 | +2 | -6 | -11 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hong Kong | 75 | 78 | 81 | 84 | 85 | 87 | 86 | 85 | 82 | 76 | 74 | 72 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +1 | -4 | -7 | -8 | -8 | -9 | -7 | -6 | -3 | +3 | +5 | +5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Hong Kong | 75 | 78 | 81 | 84 | 85 | 87 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | +1 | -4 | -7 | -8 | -8 | -9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Hong Kong | 86 | 85 | 82 | 76 | 74 | 72 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -7 | -6 | -3 | +3 | +5 | +5 |
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. Hong Kong trends → · Castries trends →
Methodology & sources
Hong Kong
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Hong Kong Intl, a weather station, about 27 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.
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 Hong Kong · change Castries → · Hong Kong page · Castries page