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Heidelberg vs Castries

Cfb Oceanic / temperateAf Tropical rainforest

Comparing Heidelberg change · Castries change

Bottom line

Castries is the warmer of the two — about 32°F on the annual average; Castries is the wetter, with 53 in more rain a year, and Castries the sunnier.

Warmer Castries 32°F on the year
Wetter Castries 53 in more a year
Sunnier Castries 23 pp less cloud
Colder winters Heidelberg 48°F colder nights

How the seasons compare

The differences between Heidelberg and Castries, in everyday terms.

Summers

Castries has much hotter summers

Heidelberg: Mild
Castries: Warm

Winters

Castries has far milder winters

Heidelberg: Cold
Castries: Stays warm

Rain & snow

Castries is much wetter

Heidelberg: Moderate rainfall
Castries: Very wet

Sky

Castries is far sunnier

Heidelberg: Often cloudy
Castries: Fairly sunny

Month-by-month charts

Temperature

Castries is the warmer of the two — about 32°F on the annual average.

20°40°60°80° JanAprJulOct HeidelbergCastries

Precipitation

Castries is the wetter — about 53 in more across the year.

PRECIPITATION (in) 0612 JanAprJulOct HeidelbergCastries

Clear skies

Castries has the clearer skies — the higher line.

0%25%50%75%100% JanAprJulOct HeidelbergCastries

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
Heidelberg363947576470747465544438
Castries808080828383838484838381
Difference+44+41+33+25+19+13+9+10+19+29+39+43
Jan – JunJanFebMarAprMayJun
Heidelberg363947576470
Castries808080828383
Difference+44+41+33+25+19+13
Jul – DecJulAugSepOctNovDec
Heidelberg747465544438
Castries838484838381
Difference+9+10+19+29+39+43
Avg low (°F) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Heidelberg293035414854575751443631
Castries787778798081818282828179
Difference+49+48+43+38+32+27+24+24+31+38+45+49
Jan – JunJanFebMarAprMayJun
Heidelberg293035414854
Castries787778798081
Difference+49+48+43+38+32+27
Jul – DecJulAugSepOctNovDec
Heidelberg575751443631
Castries818282828179
Difference+24+24+31+38+45+49
Precipitation (in) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Heidelberg1.91.81.71.52.32.22.32.222.122.5
Castries4.532.63.54.55.38.511.58.89.79.65.9
Difference+2.5+1.2+0.9+2+2.2+3+6.2+9.2+6.9+7.6+7.5+3.3
Jan – JunJanFebMarAprMayJun
Heidelberg1.91.81.71.52.32.2
Castries4.532.63.54.55.3
Difference+2.5+1.2+0.9+2+2.2+3
Jul – DecJulAugSepOctNovDec
Heidelberg2.32.222.122.5
Castries8.511.58.89.79.65.9
Difference+6.2+9.2+6.9+7.6+7.5+3.3
Cloud cover (%) Heidelberg runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Heidelberg747370676970666465717877
Castries383942495259504651514641
Difference-36-35-29-17-17-11-16-18-14-20-32-36
Jan – JunJanFebMarAprMayJun
Heidelberg747370676970
Castries383942495259
Difference-36-35-29-17-17-11
Jul – DecJulAugSepOctNovDec
Heidelberg666465717877
Castries504651514641
Difference-16-18-14-20-32-36
Relative humidity (%) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Heidelberg939084777468636471839194
Castries767575767779797979797977
Difference-17-15-9-1+3+11+15+15+8-3-12-17
Jan – JunJanFebMarAprMayJun
Heidelberg939084777468
Castries767575767779
Difference-17-15-9-1+3+11
Jul – DecJulAugSepOctNovDec
Heidelberg636471839194
Castries797979797977
Difference+15+15+8-3-12-17

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. Heidelberg trends → · Castries trends →

Both cities' Köppen climate types are projected to hold steady through 2099 (SSP2-4.5).

Methodology & sources

Heidelberg

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Weinbiet, a weather station, about 41 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 Heidelberg · change Castries → · Heidelberg page · Castries page