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Puerto Iguazú vs Castries

Cfa Humid subtropicalAf Tropical rainforest

Comparing Puerto Iguazú change · Castries change

Bottom line

Castries is the warmer of the two — about 5°C on the annual average; Castries is the wetter, with 688 mm more rain a year, and Castries the sunnier.

Warmer Castries 5°C on the year
Wetter Castries 688 mm more a year
Sunnier Castries 11 pp less cloud
Colder winters Puerto Iguazú 14°C colder nights

How the seasons compare

The differences between Puerto Iguazú and Castries, in everyday terms.

Summers

Puerto Iguazú has hotter summers

Puerto Iguazú: Hot
Castries: Warm

Winters

Castries has far milder winters

Puerto Iguazú: Mild
Castries: Stays warm

Rain & snow

Castries is wetter

Puerto Iguazú: Wet
Castries: Very wet

Sky

Castries is sunnier

Puerto Iguazú: Partly cloudy
Castries: Fairly sunny

Month-by-month charts

Temperature

Castries is the warmer of the two — about 5°C on the annual average.

0°10°20°30°40° JanAprJulOct Puerto IguazúCastries

Precipitation

Castries is the wetter — about 688 mm more across the year.

PRECIPITATION (mm) 0150300 JanAprJulOct Puerto IguazúCastries

Clear skies

Castries has the clearer skies — the higher line.

0%25%50%75%100% JanAprJulOct Puerto IguazúCastries

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) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Puerto Iguazú333231292523242628303132
Castries272727282828282929292827
Difference-6-6-5-1+3+5+5+2+1-1-3-5
Jan – JunJanFebMarAprMayJun
Puerto Iguazú333231292523
Castries272727282828
Difference-6-6-5-1+3+5
Jul – DecJulAugSepOctNovDec
Puerto Iguazú242628303132
Castries282929292827
Difference+5+2+1-1-3-5
Avg low (°C) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Puerto Iguazú212120171413121315171820
Castries262525262727272828282726
Difference+5+5+6+9+13+14+16+15+13+10+9+6
Jan – JunJanFebMarAprMayJun
Puerto Iguazú212120171413
Castries262525262727
Difference+5+5+6+9+13+14
Jul – DecJulAugSepOctNovDec
Puerto Iguazú121315171820
Castries272828282726
Difference+16+15+13+10+9+6
Precipitation (mm) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Puerto Iguazú1221269193130103566591148117132
Castries113766690114134216291224246243149
Difference-9-51-25-3-16+31+160+226+133+98+125+18
Jan – JunJanFebMarAprMayJun
Puerto Iguazú1221269193130103
Castries113766690114134
Difference-9-51-25-3-16+31
Jul – DecJulAugSepOctNovDec
Puerto Iguazú566591148117132
Castries216291224246243149
Difference+160+226+133+98+125+18
Cloud cover (%) Puerto Iguazú runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Puerto Iguazú636356545558535056625865
Castries383942495259504651514641
Difference-25-25-14-5-3+1-4-4-5-10-12-25
Jan – JunJanFebMarAprMayJun
Puerto Iguazú636356545558
Castries383942495259
Difference-25-25-14-5-3+1
Jul – DecJulAugSepOctNovDec
Puerto Iguazú535056625865
Castries504651514641
Difference-4-4-5-10-12-25
Relative humidity (%) Castries runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Puerto Iguazú727372758084827672777371
Castries767575767779797979797977
Difference+4+2+3+1-3-5-3+3+6+3+6+6
Jan – JunJanFebMarAprMayJun
Puerto Iguazú727372758084
Castries767575767779
Difference+4+2+3+1-3-5
Jul – DecJulAugSepOctNovDec
Puerto Iguazú827672777371
Castries797979797977
Difference-3+3+6+3+6+6

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. Puerto Iguazú trends → · Castries trends →

Methodology & sources

Puerto Iguazú

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Cataratas Intl, 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 Puerto Iguazú · change Castries → · Puerto Iguazú page · Castries page