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Monthly climate in Castro, Chile

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Castro features a oceanic climate (Cfb). Temperatures typically range between 7 °C (45 °F) and 15 °C (60 °F) through the year, but rarely can drop to -3 °C (26 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 1492 mm (58.7 inches) and receives 176 rainy days on the 1 mm (0.04 inches) threshold annually. Castro enjoys an average of 2964 hours of sunshine throughout the year, and daylight varies from 9 hours 4 minutes to 15 hours 14 minutes per day.

Monthly average temperatures in Castro, Chile

The warmest months in Castro are January, February and December, with daily mean temperatures ranging from 14 to 15 °C (57 - 60 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 7 to 7 °C (45 - 46 °F) throughout the day. On average each year, Castro experiences 6 days above 25 °C (77.0 °F) and 10 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Castro. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum29°C
(84°F)		35°C
(95°F)		29°C
(84°F)		22°C
(72°F)		18°C
(65°F)		15°C
(60°F)		13°C
(56°F)		15°C
(59°F)		19°C
(66°F)		22°C
(72°F)		24°C
(76°F)		29°C
(84°F)
Mean maximum26°C
(79°F)		29°C
(84°F)		24°C
(76°F)		20°C
(69°F)		16°C
(62°F)		13°C
(56°F)		13°C
(55°F)		14°C
(57°F)		17°C
(63°F)		20°C
(67°F)		23°C
(73°F)		25°C
(78°F)
Average high19°C
(66°F)		21°C
(70°F)		18°C
(64°F)		15°C
(59°F)		13°C
(55°F)		10°C
(51°F)		10°C
(50°F)		11°C
(51°F)		12°C
(54°F)		14°C
(57°F)		16°C
(61°F)		18°C
(65°F)
Daily mean14°C
(58°F)		15°C
(60°F)		13°C
(56°F)		11°C
(52°F)		9°C
(49°F)		7°C
(45°F)		7°C
(45°F)		7°C
(46°F)		8°C
(47°F)		9°C
(49°F)		12°C
(53°F)		14°C
(57°F)
Average low10°C
(50°F)		10°C
(51°F)		9°C
(48°F)		7°C
(46°F)		6°C
(43°F)		4°C
(40°F)		4°C
(39°F)		4°C
(40°F)		4°C
(40°F)		6°C
(42°F)		7°C
(45°F)		9°C
(49°F)
Mean minimum5°C
(41°F)		5°C
(42°F)		4°C
(39°F)		2°C
(35°F)		-1°C
(31°F)		-1°C
(30°F)		-1°C
(30°F)		-1°C
(31°F)		-1°C
(31°F)		0°C
(32°F)		4°C
(39°F)		5°C
(41°F)
Minimum2°C
(37°F)		4°C
(40°F)		2°C
(36°F)		-1°C
(31°F)		-2°C
(29°F)		-3°C
(26°F)		-3°C
(27°F)		-3°C
(27°F)		-1°C
(30°F)		-3°C
(27°F)		2°C
(35°F)		4°C
(40°F)

Compare climate in Castro with other places

Compare temperature, precipitation, sunshine, UV index in Castro, Chile with other places around the world.

Monthly average precipitation in Castro, Chile

Castro usually has the most precipitation in May, June and August, with an average of 19 rainy days and 197 mm (7.7 inches) of precipitation per month. The driest months in Castro are January, February and December. On average, 53 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Castro. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)49 (1.9)40 (1.6)82 (3.2)123 (4.8)173 (6.8)207 (8.2)165 (6.5)209 (8.2)135 (5.3)132 (5.2)107 (4.2)69 (2.7)
Average precipitation days (≥ 1 mm)9611151721182016181312

Monthly sunshine hours in Castro, Chile

The sunniest months in Castro are February, March and December, when the sun shines an average of 10 hours 27 minutes a day. Least sunny months in Castro: May, June and July receive an average of 5 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Castro. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours283305300215188140174193243281290345
Mean daily daylight hours14h 52m13h 43m12h 18m10h 51m9h 40m9h 4m9h 24m10h 27m11h 49m13h 16m14h 34m15h 14m

Solar UV radiation in Castro, Chile

Castro experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure. May, June and July are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Castro UV Index data.

Average daily maximum UV levels by month for Castro. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1312963224681313