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Valparaíso vs Castries

Csb Warm-summer MediterraneanAf Tropical rainforest

Comparing Valparaíso change · Castries change

Bottom line

Castries is the warmer of the two — about 23°F on the annual average; Castries is the wetter, with 57 in more rain a year.

Warmer Castries 23°F on the year
Wetter Castries 57 in more a year
Sunnier About the same similar amount of sun
Colder winters Valparaíso 33°F colder nights

How the seasons compare

The differences between Valparaíso and Castries, in everyday terms.

Summers

Castries has much hotter summers

Valparaíso: Mild
Castries: Warm

Winters

Castries has far milder winters

Valparaíso: Cool
Castries: Stays warm

Rain & snow

Castries is much wetter

Valparaíso: Fairly dry
Castries: Very wet

Sky

Similar amounts of sun

Valparaíso: Partly cloudy
Castries: Fairly sunny

Month-by-month charts

Temperature

Castries is the warmer of the two — about 23°F on the annual average.

40°60°80° JanAprJulOct ValparaísoCastries

Precipitation

Castries is the wetter — about 57 in more across the year.

PRECIPITATION (in) 0612 JanAprJulOct ValparaísoCastries

Clear skies

The two cities see a similar amount of sun.

0%25%50%75%100% JanAprJulOct ValparaísoCastries

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 (°F) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Valparaíso747372686360596062657072
Castries808080828383838484838381
Difference+6+7+9+14+19+23+24+24+22+18+13+9
Jan – JunJanFebMarAprMayJun
Valparaíso747372686360
Castries808080828383
Difference+6+7+9+14+19+23
Jul – DecJulAugSepOctNovDec
Valparaíso596062657072
Castries838484838381
Difference+24+24+22+18+13+9
Avg low (°F) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Valparaíso545453514846454546475052
Castries787778798081818282828179
Difference+24+23+25+28+32+35+36+37+36+34+31+27
Jan – JunJanFebMarAprMayJun
Valparaíso545453514846
Castries787778798081
Difference+24+23+25+28+32+35
Jul – DecJulAugSepOctNovDec
Valparaíso454546475052
Castries818282828179
Difference+36+37+36+34+31+27
Precipitation (in) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Valparaíso000.20.83.86.43.53.51.50.60.20.1
Castries4.532.63.54.55.38.511.58.89.79.65.9
Difference+4.4+2.9+2.5+2.7+0.7-1.1+5+8+7.3+9.1+9.4+5.7
Jan – JunJanFebMarAprMayJun
Valparaíso000.20.83.86.4
Castries4.532.63.54.55.3
Difference+4.4+2.9+2.5+2.7+0.7-1.1
Jul – DecJulAugSepOctNovDec
Valparaíso3.53.51.50.60.20.1
Castries8.511.58.89.79.65.9
Difference+5+8+7.3+9.1+9.4+5.7
Cloud cover (%) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Valparaíso363943486160555454504239
Castries383942495259504651514641
Difference+2-1-1+1-8-2-6-8-3+1+4+2
Jan – JunJanFebMarAprMayJun
Valparaíso363943486160
Castries383942495259
Difference+2-1-1+1-8-2
Jul – DecJulAugSepOctNovDec
Valparaíso555454504239
Castries504651514641
Difference-6-8-3+1+4+2
Relative humidity (%) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Valparaíso535455586367707170645753
Castries767575767779797979797977
Difference+23+20+19+18+15+11+9+8+9+15+23+24
Jan – JunJanFebMarAprMayJun
Valparaíso535455586367
Castries767575767779
Difference+23+20+19+18+15+11
Jul – DecJulAugSepOctNovDec
Valparaíso707170645753
Castries797979797977
Difference+9+8+9+15+23+24

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. Valparaíso trends → · Castries trends →

Methodology & sources

Valparaíso

Temperature & precipitation — the official 1991–2020 climate normals from the WMO's CLINO 1991–2020 collection, measured at Rodelillovinadelmarad, about 8 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.

How we build these numbers →