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Margaret River vs Castries

Csb Warm-summer MediterraneanAf Tropical rainforest

Comparing Margaret River change · Castries change

Bottom line

Castries is the warmer of the two — about 11°C on the annual average; Castries is the wetter, with 976 mm more rain a year, and Castries the sunnier.

Warmer Castries 11°C on the year
Wetter Castries 976 mm more a year
Sunnier Castries 15 pp less cloud
Colder winters Margaret River 17°C colder nights

How the seasons compare

The differences between Margaret River and Castries, in everyday terms.

Summers

Castries has hotter summers

Margaret River: Warm
Castries: Warm

Winters

Castries has far milder winters

Margaret River: Cool
Castries: Stays warm

Rain & snow

Castries is wetter

Margaret River: Moderate rainfall
Castries: Very wet

Sky

Castries is sunnier

Margaret River: Often cloudy
Castries: Fairly sunny

Month-by-month charts

Temperature

Castries is the warmer of the two — about 11°C on the annual average.

0°10°20°30°40° JanAprJulOct Margaret RiverCastries

Precipitation

Castries is the wetter — about 976 mm more across the year.

PRECIPITATION (mm) 0150300 JanAprJulOct Margaret RiverCastries

Clear skies

Castries has the clearer skies — the higher line.

0%25%50%75%100% JanAprJulOct Margaret RiverCastries

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
Margaret River272726222018161717202325
Castries272727282828282929292827
Difference—-1+1+5+8+11+12+12+11+9+5+2
Jan – JunJanFebMarAprMayJun
Margaret River272726222018
Castries272727282828
Difference—-1+1+5+8+11
Jul – DecJulAugSepOctNovDec
Margaret River161717202325
Castries282929292827
Difference+12+12+11+9+5+2
Avg low (°C) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Margaret River1414131110988991113
Castries262525262727272828282726
Difference+12+11+12+15+17+18+19+19+19+18+16+14
Jan – JunJanFebMarAprMayJun
Margaret River14141311109
Castries262525262727
Difference+12+11+12+15+17+18
Jul – DecJulAugSepOctNovDec
Margaret River88991113
Castries272828282726
Difference+19+19+19+18+16+14
Precipitation (mm) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Margaret River129—64136179197159114623617
Castries113766690114134216291224246243149
Difference+101+67—+26-22-45+19+132+110+184+206+133
Jan – JunJanFebMarAprMayJun
Margaret River129—64136179
Castries113766690114134
Difference+101+67—+26-22-45
Jul – DecJulAugSepOctNovDec
Margaret River197159114623617
Castries216291224246243149
Difference+19+132+110+184+206+133
Cloud cover (%) Margaret River runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Margaret River505156646770696869646056
Castries383942495259504651514641
Difference-12-12-14-15-14-11-20-22-18-12-14-15
Jan – JunJanFebMarAprMayJun
Margaret River505156646770
Castries383942495259
Difference-12-12-14-15-14-11
Jul – DecJulAugSepOctNovDec
Margaret River696869646056
Castries504651514641
Difference-20-22-18-12-14-15
Relative humidity (%) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Margaret River686870727476767776767369
Castries767575767779797979797977
Difference+7+6+5+4+4+3+2+2+2+3+6+8
Jan – JunJanFebMarAprMayJun
Margaret River686870727476
Castries767575767779
Difference+7+6+5+4+4+3
Jul – DecJulAugSepOctNovDec
Margaret River767776767369
Castries797979797977
Difference+2+2+2+3+6+8

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. Margaret River trends → · Castries trends →

Methodology & sources

Margaret River

Temperature & precipitation — 1991–2020 normals computed from 21 years of daily observations at Witchcliffe, a weather station, about 9 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.

How we build these numbers →

← change Margaret River · change Castries → · Margaret River page · Castries page