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Halifax vs Castries
Comparing Halifax change · Castries change
Castries is the warmer of the two — about 20°C on the annual average; Castries is the wetter, with 517 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Halifax and Castries, in everyday terms.
Summers
Castries has much hotter summers
Halifax: Mild
Castries: Warm
Winters
Castries has far milder winters
Halifax: Very cold
Castries: Stays warm
Rain & snow
Castries is wetter
Halifax: Wet
Castries: Very wet
Sky
Castries is far sunnier
Halifax: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 20°C on the annual average.
Precipitation
Castries is the wetter — about 517 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Halifax | 0 | 1 | 4 | 9 | 15 | 20 | 24 | 25 | 21 | 15 | 9 | 3 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +27 | +26 | +23 | +18 | +13 | +8 | +4 | +4 | +8 | +14 | +19 | +24 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Halifax | 0 | 1 | 4 | 9 | 15 | 20 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Difference | +27 | +26 | +23 | +18 | +13 | +8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Halifax | 24 | 25 | 21 | 15 | 9 | 3 |
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +4 | +4 | +8 | +14 | +19 | +24 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Halifax | -9 | -9 | -5 | 0 | 5 | 10 | 14 | 15 | 11 | 6 | 1 | -4 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +34 | +34 | +30 | +26 | +22 | +17 | +13 | +13 | +17 | +22 | +26 | +31 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Halifax | -9 | -9 | -5 | 0 | 5 | 10 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Difference | +34 | +34 | +30 | +26 | +22 | +17 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Halifax | 14 | 15 | 11 | 6 | 1 | -4 |
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +13 | +13 | +17 | +22 | +26 | +31 |
Precipitation (mm) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Halifax | 140 | 118 | 127 | 130 | 118 | 103 | 77 | 77 | 97 | 163 | 140 | 154 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | -27 | -42 | -60 | -40 | -5 | +30 | +139 | +214 | +127 | +83 | +102 | -5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Halifax | 140 | 118 | 127 | 130 | 118 | 103 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Difference | -27 | -42 | -60 | -40 | -5 | +30 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Halifax | 77 | 77 | 97 | 163 | 140 | 154 |
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +139 | +214 | +127 | +83 | +102 | -5 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Halifax | 61 | 43 | 31 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 18 |
| Castries | — | — | — | — | — | — | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Halifax | 61 | 43 | 31 | 5 | 0 | 0 |
| Castries | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Halifax | 0 | 0 | 0 | 0 | 5 | 18 |
| Castries | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Halifax runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Halifax | 78 | 73 | 68 | 70 | 70 | 68 | 66 | 59 | 59 | 65 | 75 | 77 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -40 | -35 | -27 | -20 | -18 | -9 | -16 | -13 | -9 | -14 | -28 | -36 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Halifax | 78 | 73 | 68 | 70 | 70 | 68 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -40 | -35 | -27 | -20 | -18 | -9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Halifax | 66 | 59 | 59 | 65 | 75 | 77 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -16 | -13 | -9 | -14 | -28 | -36 |
Relative humidity (%) Halifax runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Halifax | 87 | 86 | 83 | 84 | 85 | 86 | 87 | 86 | 84 | 83 | 85 | 86 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -12 | -11 | -8 | -8 | -8 | -8 | -9 | -7 | -6 | -4 | -6 | -9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Halifax | 87 | 86 | 83 | 84 | 85 | 86 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -12 | -11 | -8 | -8 | -8 | -8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Halifax | 87 | 86 | 84 | 83 | 85 | 86 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -9 | -7 | -6 | -4 | -6 | -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. Halifax trends → · Castries trends →
Methodology & sources
Halifax
Temperature & precipitation — 1991–2020 normals computed from 17 years of daily observations at Lake Major, a weather station, about 12 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 Halifax · change Castries → · Halifax page · Castries page