Climate and monthly weather forecastSan Antonio, Chile
Climate and monthly weather forecast
The climate of San Antonio
San Antonio, nestled on the coastline of Chile, experiences a Mediterranean climate with warm summers, denoted by the Köppen climate classification as Csb. Throughout the year, this city reveals a distinct pattern in its weather parameters.Analyzing the given climatological data, San Antonio's annual weather parameters fluctuate in a marked but predictable pattern. The temperature varies considerably throughout the year, peaking at 21.7°C (71.1°F) in February and dropping to a low of 8.8°C (47.8°F) in July. A distinct temperature shift is noticeable as the seasons change.
Relative humidity stays fairly constant from month to month, fluctuating between 71% and 76%. While rainfall in San Antonio shows an obvious peak in June with 74mm (2.91"), the remainder of the year is relatively dry, with minimal rainfall observed in the remaining months.
Interestingly, San Antonio experiences varying daylight hours ranging from a low of 9.9 hours in June to a maximum of 14.4 hours in December. The number of hours of sunshine also follows a similar trend, with slightly less sunshine in winter and more during the summer months.
The best time to visit San Antonio
Factoring in temperature, sunshine, and rainfall, the prime time to visit San Antonio would be during the warmer months. These span from December to March when temperatures range between 14°C (57.2°F) and 22°C (71.6°F). These months also boast the longest daylight hours, providing ample opportunity to explore the region's attractions.The worst time to visit San Antonio
For those sensitive to colder temperatures or wishing to avoid rainfall, it is advisable to steer clear of San Antonio from May through August. Specifically, June weather demonstrates a high of 74mm (2.91") of rainfall along with the coolest temperatures throughout the year, only reaching a high of 15.4°C (59.7°F).Spring weather in San Antonio
Spring in San Antonio, from September to November, commences with a gentle rise in temperature from 16°C (60.8°F) to 19°C (66.2°F) accompanied by decreasing rainfall from 15mm (0.59") to 1mm (0.04"). Increasing daylight hours and consistent humidity typically mark the arrival of this season.Summer weather in San Antonio
Summer, which lasts from December to February, brings the warmest temperatures with highs reaching up to 21.7°C (71.1°F) in February. Sunshine is abundant during these months, and rainfall is minimal, making this period an appealing time for outings and outdoor activities.Autumn weather in San Antonio
Autumn, covering March through May, introduces a cooling trend with temperatures dropping from 21.2°C (70.2°F) to 17.6°C (63.7°F). Increased rainfall spanning from 1mm (0.04") to 27mm (1.06") marks this season as San Antonio transitions into the cooler half of the year.Winter weather in San Antonio
Winter in San Antonio, from June to August, is the coldest time of the year with temperatures falling between 14.4°C (57.9°F) to 15.2°C (59.4°F). Rainfall is highest during this season, particularly in June with precipitation reaching 74mm (2.91"). Despite the inclement weather in this period, sunshine hours maintain a steady average, peeking through the rainclouds on most days.Weather in January
San Antonio, Chile begins the year with a fairly mild climate. Light breezes are common at 14km/h (8.7mph), and January enjoys the longest daylight hours with 14.1 hours per day on average compared to other months. With low cloud coverage of only 11% and a UV index rating of 5, sunscreen is still crucial even in January. Weather in January »Weather in February
As the second month of the calendar year, February continues the trend set by the warm and pleasant climate of January in San Antonio, Chile. There remains a minimal change in the relative humidity of the air, with the slight downturn in temperature keeping it very bearable. Weather in February »Weather in March
Transitioning into autumn, March carries over the comfortable weather from the previous months in San Antonio, Chile. Few patterns shift including slight decreases in daylight hours and sunshine hours. Remarkably, light rain is observed in March with an average rainfall of 1mm (0.04") that generally occurs over 2.3 days. Weather in March »Weather in April
As San Antonio, Chile moves further into autumn in April, a mild change begins to surface in the city's climate. Cooler temperatures start to prevail, decreasing the humidity slightly. The rainfall tendency escalates marginally in April, with an average volume of 3mm (0.12") falling usually over 3 days. Weather in April »Weather in May
Heading further into the year, May's weather in San Antonio, Chile becomes modestly cooler. Changes in climate affect activities such as agriculture with the shift to lower temperatures and higher rainfall. Likely one of the wettest months of the year, May records distinct rainfall averages at 27mm (1.06") precipitation witnessed over 5.3 days. Weather in May »Weather in June
June marks the arrival of winter in San Antonio, Chile, seen in the significant drop in temperature and marked increase in rainfall. In what is considered the peak of winter, woolens and heaters become quite essential. A noticeable amount of rainfall is recorded in June, peaking at 74mm (2.91") deluges usually occurring over 7.3 days. Weather in June »Weather in July
Moving further into winter, July in San Antonio, Chile is characterized by cold days and even colder nights. Warmer clothing becomes non-negotiable with the drop in temperatures. Uniquely, despite the cold, July observes a decrease in rainfall to 31mm (1.22"), which typically happens over 6.6 days. Weather in July »Weather in August
San Antonio, Chile begins to show signs of emerging from winter's cold embrace in August. A gradual increase in daily temperatures heralds the coming spring, making August perfect for exploring the natural beauty of the region. A noticeable change in rainfall patterns is seen, with 25mm (0.98") precipitation typically falling over 6.2 days. Weather in August »Weather in September
The arrival of spring in San Antonio, Chile comes with longer days and warmer temperatures in September. Changes in climate become beneficial to vegetation, with flowers beginning to bloom and trees donning fresh leaves. Interestingly, September represents a decrease in rainfall with 15mm (0.59") falling typically over 3.7 days. Weather in September »Weather in October
October in San Antonio, Chile is represented by temperate weather conditions, perfect for both indoor and outdoor activities. Extended daylight hours coupled with increased temperatures make it an ideal month for tourists. Barely registering any significant rainfall, October records a mere 9mm (0.35") over 2.6 days on average. Weather in October »Weather in November
As summer approaches, November's weather conditions in San Antonio, Chile turn warmer. Clear skies and increasing daylight hours offer residents and tourists alike ample opportunities to partake in outdoor activities. The most significant change in November is the almost disappearing act of rainfall, with only 1mm (0.04") measured usually over 1.4 days. Weather in November »Weather in December
Closing the year, December brings extended daylight hours and warmer climate to San Antonio, Chile. Although the temperature shoot up, the weather remains comfortable due to the city's proximity to the sea. Analogous to November, December records a low rainfall of 2mm (0.08") typically occurring over 1.1 days. Weather in December »Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The months with the least rainfall are January through March and November Rain falls for 0.9 days and accumulates 1mm (0.04") of rain.
Throughout the year, there are 40.9 rainfall days, and 190mm (7.48") of precipitation is accumulated.
The months with the highest UV index in San Antonio are January through April, November and December, with an average maximum UV index of 5.
February, with its high-temperature average of 21.7°C (71.1°F) and a low-temperature average of 14.8°C (58.6°F), is the warmest month in San Antonio, Chile.
With an average of 9.9h of sunshine, February has the most sunshine of the year in San Antonio.
The least humid month in San Antonio, Chile, is April, with an average relative humidity of 71%.
On Sunday, 07. April 2024, at 00:00, Daylight Saving Time ends in San Antonio, Chile, and the time zone changes from -03 to -04. The next Daylight Saving Time starts on Sunday, 08. September 2024, at 00:00, and the time zone reverts from -04 to -03.
May through October, with an average maximum UV index of 4, are months with the lowest UV index.
The month with the most rainfall is June, when the rain falls for 7.3 days and typically aggregates up to 74mm (2.91") of precipitation.
June has the shortest days of the year, with an average of 10h and 0min of daylight.
The month with the least sunshine in San Antonio is June, with an average of 8.1h of sunshine.
With average high and low temperatures of 14.4°C (57.9°F) and 8.8°C (47.8°F) respectively, July is San Antonio's coldest month.
August and September, with an average relative humidity of 76%, are most humid months in San Antonio.
December has the longest days of the year, with an average of 14h and 18min of daylight.
Average temperature
San Antonio, Chile
The warmest month (with the highest average high temperature) is February (21.7°C).
The month with the lowest average high temperature is July (14.4°C).
The months with the highest average low temperature are January and February (14.8°C).
The coldest month (with the lowest average low temperature) is July (8.8°C).
Average pressure
San Antonio, Chile
- Average pressure in January:
1014.6mbar - Average pressure in February:
1014.3mbar - Average pressure in March:
1015.1mbar - Average pressure in April:
1016.6mbar - Average pressure in May:
1017.6mbar - Average pressure in June:
1018.8mbar
- Average pressure in July:
1019.6mbar - Average pressure in August:
1019.5mbar - Average pressure in September:
1019.2mbar - Average pressure in October:
1018.1mbar - Average pressure in November:
1016.8mbar - Average pressure in December:
1015.5mbar
The month with the highest atmospheric pressure is July (1019.6mbar).
The month with the lowest atmospheric pressure is February (1014.3mbar).
Average wind speed
San Antonio, Chile
- Average wind speed in January:
13.6km/h - Average wind speed in February:
13.3km/h - Average wind speed in March:
13.4km/h - Average wind speed in April:
13.2km/h - Average wind speed in May:
12km/h - Average wind speed in June:
13.7km/h
- Average wind speed in July:
13.2km/h - Average wind speed in August:
13.7km/h - Average wind speed in September:
13.7km/h - Average wind speed in October:
14.3km/h - Average wind speed in November:
15.3km/h - Average wind speed in December:
14.6km/h
The windiest month (with the highest average wind speed) is November (15.3km/h).
The calmest month (with the lowest average wind speed) is May (12km/h).
Average humidity
San Antonio, Chile
The months with the highest relative humidity are August and September (76%).
The month with the lowest relative humidity is April (71%).
Average rainfall
San Antonio, Chile
The wettest month (with the highest rainfall) is June (74mm).
The driest months (with the least rainfall) are January, February, March and November (1mm).
Average rainfall days
San Antonio, Chile
- Average rainfall days in January:
0.9 days - Average rainfall days in February:
0.5 days - Average rainfall days in March:
2.3 days - Average rainfall days in April:
3 days - Average rainfall days in May:
5.3 days - Average rainfall days in June:
7.3 days
- Average rainfall days in July:
6.6 days - Average rainfall days in August:
6.2 days - Average rainfall days in September:
3.7 days - Average rainfall days in October:
2.6 days - Average rainfall days in November:
1.4 days - Average rainfall days in December:
1.1 days
The month with the highest number of rainy days is June (7.3 days).
The month with the least rainy days is February (0.5 days).
Average daylight / Average sunshine
San Antonio, Chile
- Average daylight in January:
14h and 6min - Average daylight in February:
13h and 18min - Average daylight in March:
12h and 18min - Average daylight in April:
11h and 12min - Average daylight in May:
10h and 24min - Average daylight in June:
10h and 0min
- Average daylight in July:
10h and 12min - Average daylight in August:
10h and 54min - Average daylight in September:
11h and 54min - Average daylight in October:
12h and 54min - Average daylight in November:
13h and 54min - Average daylight in December:
14h and 18min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in January:
9h and 48min - Average sunshine in February:
9h and 54min - Average sunshine in March:
9h and 42min - Average sunshine in April:
9h and 12min - Average sunshine in May:
8h and 30min - Average sunshine in June:
8h and 6min
- Average sunshine in July:
8h and 12min - Average sunshine in August:
8h and 30min - Average sunshine in September:
8h and 42min - Average sunshine in October:
8h and 54min - Average sunshine in November:
9h and 30min - Average sunshine in December:
9h and 48min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is June (Average sunshine: 8h and 6min).
Average sunshine days
San Antonio, Chile
- Average sunshine days in January:
28.8 days - Average sunshine days in February:
25.8 days - Average sunshine days in March:
28.5 days - Average sunshine days in April:
26.4 days - Average sunshine days in May:
24.8 days - Average sunshine days in June:
21.9 days
- Average sunshine days in July:
23.3 days - Average sunshine days in August:
23.4 days - Average sunshine days in September:
24 days - Average sunshine days in October:
26.3 days - Average sunshine days in November:
26.9 days - Average sunshine days in December:
28.5 days
The month with the most sunshine days is January (28.8 days).
The month with the least sunshine days is June (21.9 days).
Average UV index
San Antonio, Chile
The months with the highest UV index are January, February, March, April, November and December (UV index 5).
The months with the lowest UV index are May, June, July, August, September and October (UV index 4).
Average cloud cover
San Antonio, Chile
The months with the most cloud cover are June and August (Cloud cover 28).
The month with the least cloud cover is February (Cloud cover 9).
Average visibility
San Antonio, Chile
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
