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Castries vs Gardiner

Af Tropical rainforestBSk Cold semi-arid

Comparing Castries change · Gardiner change

Bottom line

Castries is the warmer of the two — about 19°C on the annual average; Castries is the wetter, with 1723 mm more rain a year, and Castries the sunnier.

Warmer Castries 19°C on the year
Wetter Castries 1723 mm more a year
Sunnier Castries 16 pp less cloud
Colder winters Gardiner 34°C colder nights

How the seasons compare

The differences between Castries and Gardiner, in everyday terms.

Summers

Summers are nearly the same

Castries: Warm
Gardiner: Warm

Winters

Castries has far milder winters

Castries: Stays warm
Gardiner: Very cold

Rain & snow

Castries is much wetter

Castries: Very wet
Gardiner: Very dry

Sky

Castries is sunnier

Castries: Fairly sunny
Gardiner: Often cloudy

Month-by-month charts

Temperature

Castries is the warmer of the two — about 19°C on the annual average.

-20°20°40° JanAprJulOct CastriesGardiner

Precipitation

Castries is the wetter — about 1723 mm more across the year.

PRECIPITATION (mm) 0150300 JanAprJulOct CastriesGardiner

Clear skies

Castries has the clearer skies — the higher line.

0%25%50%75%100% JanAprJulOct CastriesGardiner

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
JanFebMarAprMayJunJulAugSepOctNovDec
Castries272727282828282929292827
Gardiner1391419253130241561
Difference-26-24-18-14-9-3+2+1-5-14-22-27
Jan – JunJanFebMarAprMayJun
Castries272727282828
Gardiner139141925
Difference-26-24-18-14-9-3
Jul – DecJulAugSepOctNovDec
Castries282929292827
Gardiner3130241561
Difference+2+1-5-14-22-27
Avg low (°C) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Castries262525262727272828282726
Gardiner-8-8-4048121171-5-8
Difference-34-33-29-26-23-19-15-17-21-26-32-35
Jan – JunJanFebMarAprMayJun
Castries262525262727
Gardiner-8-8-4048
Difference-34-33-29-26-23-19
Jul – DecJulAugSepOctNovDec
Castries272828282726
Gardiner121171-5-8
Difference-15-17-21-26-32-35
Precipitation (mm) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Castries113766690114134216291224246243149
Gardiner121219153432211820242013
Difference-102-63-47-74-80-101-195-274-204-223-223-137
Jan – JunJanFebMarAprMayJun
Castries113766690114134
Gardiner121219153432
Difference-102-63-47-74-80-101
Jul – DecJulAugSepOctNovDec
Castries216291224246243149
Gardiner211820242013
Difference-195-274-204-223-223-137
Snowfall (cm)
JanFebMarAprMayJunJulAugSepOctNovDec
Castries
Gardiner116632000011210
Difference
Jan – JunJanFebMarAprMayJun
Castries
Gardiner1166320
Difference
Jul – DecJulAugSepOctNovDec
Castries
Gardiner00011210
Difference
Cloud cover (%) Gardiner runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Castries383942495259504651514641
Gardiner696972737161454752646969
Difference+30+30+30+24+19+3-4+1+1+13+23+29
Jan – JunJanFebMarAprMayJun
Castries383942495259
Gardiner696972737161
Difference+30+30+30+24+19+3
Jul – DecJulAugSepOctNovDec
Castries504651514641
Gardiner454752646969
Difference-4+1+1+13+23+29
Relative humidity (%) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Castries767575767779797979797977
Gardiner989897867570625761739098
Difference+23+24+22+10-3-8-17-22-18-6+10+21
Jan – JunJanFebMarAprMayJun
Castries767575767779
Gardiner989897867570
Difference+23+24+22+10-3-8
Jul – DecJulAugSepOctNovDec
Castries797979797977
Gardiner625761739098
Difference-17-22-18-6+10+21

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. Castries trends → · Gardiner trends →

Methodology & sources

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.

Gardiner

Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Gardiner, a weather station, inside the city. 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.

How we build these numbers →