San Alfonso Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit San Alfonso.

Current conditions San Alfonso  

Climate overview of San Alfonso

The climate in San Alfonso, Santiago Metropolitan Region, Chile, is marked by large temperature swings across the seasons, ranging from 20°C (68°F) in January to 2°C (36°F) in July.

With around 1096 mm (43 in) of annual rain/snowfall, San Alfonso has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has a distinct dry season from January to March, with pleasant summers and cold winters. The wettest month is June. January is the sunniest month, averaging 12.2 hours of sunshine per day.

San Alfonso Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in San Alfonso - and find the best time to visit.

Monthly Temperature in San Alfonso

In San Alfonso, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a pleasant 20°C (68°F) in January. In July, the coolest month of the year, temperatures drop to a chilly 2°C (36°F).

At night, temperatures range from around 7°C (45°F) in January to -7°C (19°F) in July.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in San Alfonso

San Alfonso experiences significant rain/snowfall throughout the year, averaging 1096 mm (43 in) of precipitation annually. San Alfonso can be quite wet during June, receiving approximately 211 mm (8.3 in) of precipitation over 4 snowy/rainy days.

In contrast, during the driest month (March), you will experience much drier conditions, with 25 mm (1 in) of precipitation spread across 7 rainy days. For more details, please visit our San Alfonso Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in San Alfonso

San Alfonso can be enjoyed more throughout the sunniest month of January under a blue sky, with approximately 12.2 hours of sunshine daily. In contrast, the city experiences much darker days in June, with only 4.0 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Santiago, Chile (44 KM, 27 Miles).

Daily hours of sunshine

Data from: Santiago, Chile (44 KM, 27 Miles).

Humidity in San Alfonso by Month

Best Time to Visit San Alfonso

Conditions in San Alfonso are generally most comfortable in January, February and March. They are typically least comfortable in May, June, July, August and September.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: January, February and March
  • Warmest weather: January and February
  • Most sunshine: January and December
  • Wettest months: May, June, July, August and September, when rainfall is highest.
  • Seasonal pattern: A distinct dry season from January to March, with pleasant summers and cold winters
  • Coldest conditions: July, with freezing nights around -7°C (19°F).

Frequently asked questions about the climate in San Alfonso

What is the best time to visit San Alfonso?

January, February and March typically offer the most optimal weather in San Alfonso. In contrast, May, June, July, August and September tend to have less optimal conditions. San Alfonso has a distinct dry season from January to March, with pleasant summers and cold winters.

What temperatures can I expect in San Alfonso?

Daytime highs range from 2°C (36°F) in July to 20°C (68°F) in January. Nighttime lows range from -7°C (19°F) to 7°C (45°F). Temperatures vary considerably through the year.

How much rain does San Alfonso get?

Annual rainfall is around 1096 mm (43 in). June is the wettest month with 211 mm (8.3 in), while March is the driest with 25 mm (1 in). In the coldest months, precipitation may fall as snow/rain.

How sunny is San Alfonso?

San Alfonso receives around 2,750 hours of sunshine per year. January is the sunniest month with 365 hours, while June is the cloudiest with just 120 hours. Overall, San Alfonso enjoys abundant sunshine.

San Alfonso 3-Day Forecast

San Alfonso on the map

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