Climate and monthly weather forecastSan Bernardo, Chile
Climate and monthly weather forecast
The climate of San Bernardo
San Bernardo, a city situated in the South American country of Chile, possesses a Mediterranean climate with warm summers; this is according to the Köppen climate classification. As the information from provided data sets unfolds, the city's temperature, rainfall, humidity, wind, and sunlight exposure see several shifts throughout the year.Taking an in-depth look into the temperature data, the warm months span from December to March, with the highest average temperature hitting 28.4°C (83.1°F) in January. The cooler months stretch from June to August. July emerges as the coldest month with an average low of 4.3°C (39.7°F).
The city’s humidity ranges from 40% relative humidity in March up to a high of 59% in July. On the aspect of rainfall, the least precipitation is seen in February while the maximum rainfall, reaching up to 50mm (1.97"), occurs in the month of June. Interestingly, despite the fair amount of rainfall, San Bernardo does not experience significant snowfall throughout the year, with just 1mm (0.04") recorded in July.
The best time to visit San Bernardo
The best time to visit San Bernardo depends on various weather factors. Generally, the months from November to March come highly recommended. During this period, the city experiences higher temperatures ranging from 20.6°C (69.1°F) to 28.4°C (83.1°F), paired with low precipitation. Reports of cool evening temperatures also add to these months' appeal.Moreover, the amount of daily sunshine adds to the charm of these months. Starting from 9 hours in November, it peaks at 9.9 hours in January and stays constant until March, making it an ideal period for outdoor activities and exploring the city’s landscape.
The worst time to visit San Bernardo
The insights derived from the data suggest that the period from May to August is likely the less favorable time for a visit. During these months, one would have to contend with low temperatures, especially in July when they could go as low as 4.3°C (39.7°F). In addition, May to August experiences increased rainfall, peaking in June with an average rainfall of 50mm (1.97").Not surprisingly, these months have reduced daylight hours and sunshine duration. On average, they bask in around 10 daylight hours per day, with the sun only peaking out on an average of 8 hours per day.
Spring weather in San Bernardo
When the season of blossoms arrives in San Bernardo, from September to November, the city experiences a moderate climate that is comfortable for most activities. Temperatures slowly increase from an average high of 17.5°C (63.5°F) in September to a more summer-like 24.5°C (76.1°F) in November. Nights, however, remain relatively cool, ranging from 5.4°C (41.7°F) to 10.1°C (50.2°F). November sees the least rainfall during spring, totaling up to 4mm (0.16") only, and as winter recedes, sunshine hours increase to an average of 9 to 9.6 hours per day.Summer weather in San Bernardo
The city of San Bernardo heralds in summer from December, lasting until February. These months boast high temperatures peaking at 28.4°C (83.1°F) in January, while the minimum temperatures stay above 13°C (55.4°F). Despite being the warmest, rainfall during summer is minimal, with averages of 1 to 2mm (0.08"). Furthermore, long sunny hours characterize this season. Sunshine duration remains steady above 9 hours daily, making outdoor activities extremely enjoyable.Autumn weather in San Bernardo
Autumn makes its presence felt from March to May in San Bernardo. During this timeframe, temperatures start to drop, with averages high varying from 23.1°C (73.6°F) in March to a cooler 18.7°C (65.7°F) in May. Precipitation becomes frequent, culminating in a peak of 19mm (0.75") in May. Despite the evolving weather, the city still enjoys above 8 hours of sunshine daily.Winter weather in San Bernardo
Beginning from June until August, winter in San Bernardo brings chilled weather, with temperatures sinking to the lowest of the year. July becomes a point of focus with its record of lowest mean temperature, standing at 4.3°C (39.7°F). Similarly, July also houses the year's highest relative humidity, culminating at 59%. Despite these colder, humid conditions, snowfall remains negligible, and sunshine averages 8.2 hours daily in June and ascends to 8.5 hours by August. This brings about a partial reprieve from the characteristically damp and cool winter days.Weather in January
San Bernardo commences its year with warm temperatures, typical for summer in Chile. The mercury often rises to around 28.4°C (83.1°F) during the day, making January the hottest month of the year. Precipitation is scarce and the sun dominates the sky. Weather in January »Weather in February
In February, a continuation of the summer’s warmth is prevalent in San Bernardo. A slight drop in daytime temperatures is registered, though the difference is hardly noticeable. The chance of rainfall remains low, and with the sun shining brightly most days, it's an ideal time for outdoor activities. Weather in February »Weather in March
As autumn enters in March, the heat in San Bernardo begins to recede. Noticeably cooler than the peak summer months, the city’s climate remains warm and enjoyable. The likelihood of rainfall remains low and the clouds are sparse. Weather in March »Weather in April
In April, San Bernardo witnesses a substantial drop in temperature as autumn advances. A copious increase in rainfall from 1mm (0.04") in March to 5mm (0.2") in April signals the onset of the rainy season. Sunshine hours decrease due to the increased cloud cover. Weather in April »Weather in May
May imposes a strong reminder of autumn in San Bernardo, with noticeably cooler weather and increased rainfall from 5mm (0.2") in April to a year high of 19mm (0.75"). As the temperatures fall, the relative humidity conversely rises, marking the air with a persistent dampness. Weather in May »Weather in June
Welcome to the winter months in San Bernardo. June marks the first appearance of snowfall, with the number of rainy days also reaching a year high of seven. The drop in temperatures and increased precipitation are indicative of the winter season. Weather in June »Weather in July
July signifies the dead of the winter season in San Bernardo. The city experiences chilling temperatures along with persistent rain. Interestingly, snowfall appears to recede from its June debut, possibly due to the moderate cloud cover. Weather in July »Weather in August
August marks the winding down of winter in San Bernardo, as temperatures begin their gradual ascent. The rain subsides and the snowfall ceases entirely, indicating the retreat of winter. The city begins to bask under the sun again as sunshine hours increase marginally. Weather in August »Weather in September
September signifies the arrival of spring in San Bernardo. Coinciding with decreasing rainfall and slightly warmer temperatures, the city begins to exhibit signs of springtime. The breeze carries the fragrance of blooming flowers, enhancing the allure of the city. Weather in September »Weather in October
In October, San Bernardo enjoys the full swing of spring, displaying pleasant temperatures and a moderate amount of rainfall. The city revels under a healthier sun, with an increase in the amount of daylight. The pace of life quickens in response to the more clement weather. Weather in October »Weather in November
November brings a noticeable rise in temperatures, signalling the onset of summer in San Bernardo. The increase in sunny hours, up to 9.6 hours, instills a vibrant atmosphere throughout the city. November's moderate rainfall coupled with the warm temperatures characterizes the characteristic Chilean summer. Weather in November »Weather in December
As the year concludes in San Bernardo, December continues to boast warm temperatures, touching on the higher end of the scale. Remaining quite dry with a marginal rainfall of 4mm (0.16"), December exhibits a classic summer climate. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
San Bernardo, Chile
The warmest month (with the highest average high temperature) is January (28.4°C).
The month with the lowest average high temperature is July (13.3°C).
The month with the highest average low temperature is January (13.4°C).
The coldest month (with the lowest average low temperature) is July (4.3°C).
Average pressure
San Bernardo, Chile
- Average pressure in January:
1014.5mbar - Average pressure in February:
1014.4mbar - Average pressure in March:
1015.4mbar - Average pressure in April:
1016.8mbar - Average pressure in May:
1017.8mbar - Average pressure in June:
1018.9mbar
- Average pressure in July:
1019.7mbar - Average pressure in August:
1019.5mbar - Average pressure in September:
1019.1mbar - Average pressure in October:
1017.7mbar - Average pressure in November:
1016.2mbar - Average pressure in December:
1015mbar
The month with the highest atmospheric pressure is July (1019.7mbar).
The month with the lowest atmospheric pressure is February (1014.4mbar).
Average wind speed
San Bernardo, Chile
- Average wind speed in January:
7.5km/h - Average wind speed in February:
7km/h - Average wind speed in March:
6.3km/h - Average wind speed in April:
6km/h - Average wind speed in May:
5.8km/h - Average wind speed in June:
6.8km/h
- Average wind speed in July:
6.5km/h - Average wind speed in August:
6.4km/h - Average wind speed in September:
6.3km/h - Average wind speed in October:
6.5km/h - Average wind speed in November:
7km/h - Average wind speed in December:
7.3km/h
The windiest month (with the highest average wind speed) is January (7.5km/h).
The calmest month (with the lowest average wind speed) is May (5.8km/h).
Average humidity
San Bernardo, Chile
The month with the highest relative humidity is July (59%).
The month with the lowest relative humidity is March (40%).
Average rainfall
San Bernardo, Chile
The wettest month (with the highest rainfall) is June (50mm).
The driest months (with the least rainfall) are February and March (1mm).
Average rainfall days
San Bernardo, Chile
- Average rainfall days in January:
1.2 days - Average rainfall days in February:
0.6 days - Average rainfall days in March:
1.9 days - Average rainfall days in April:
3.7 days - Average rainfall days in May:
4.8 days - Average rainfall days in June:
7 days
- Average rainfall days in July:
7.3 days - Average rainfall days in August:
6.4 days - Average rainfall days in September:
6 days - Average rainfall days in October:
5 days - Average rainfall days in November:
2.3 days - Average rainfall days in December:
1.5 days
The month with the highest number of rainy days is July (7.3 days).
The month with the least rainy days is February (0.6 days).
Average snowfall
San Bernardo, Chile
The month with the highest snowfall is July (1mm).
The months with the least snowfall are January, February, March, April, May, June, August, September, October, November and December (0mm).
Average snowfall days
San Bernardo, Chile
- Average snowfall days in January:
0 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0.2 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is July (0.2 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).
Average daylight / Average sunshine
San Bernardo, 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 54min - Average sunshine in February:
9h and 54min - Average sunshine in March:
9h and 48min - Average sunshine in April:
9h and 18min - Average sunshine in May:
8h and 36min - Average sunshine in June:
8h and 12min
- Average sunshine in July:
8h and 30min - Average sunshine in August:
8h and 30min - Average sunshine in September:
8h and 54min - Average sunshine in October:
9h and 0min - Average sunshine in November:
9h and 36min - Average sunshine in December:
9h and 54min
The months with the most sunshine are January, February and December (Average sunshine: 9h and 54min).
The month with the least sunshine is June (Average sunshine: 8h and 12min).
Average sunshine days
San Bernardo, Chile
- Average sunshine days in January:
27.9 days - Average sunshine days in February:
26.1 days - Average sunshine days in March:
29.3 days - Average sunshine days in April:
26.4 days - Average sunshine days in May:
24.8 days - Average sunshine days in June:
21.8 days
- Average sunshine days in July:
22.3 days - Average sunshine days in August:
22.7 days - Average sunshine days in September:
21.8 days - Average sunshine days in October:
24 days - Average sunshine days in November:
26.1 days - Average sunshine days in December:
28.3 days
The month with the most sunshine days is March (29.3 days).
The months with the least sunshine days are June and September (21.8 days).
Average UV index
San Bernardo, Chile
The month with the highest UV index is January (UV index 6).
The months with the lowest UV index are June, July and September (UV index 3).
Average cloud cover
San Bernardo, Chile
The month with the most cloud cover is June (Cloud cover 26).
The month with the least cloud cover is February (Cloud cover 3).
Average visibility
San Bernardo, 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).





