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Contents
- The climate of San Luis
- The best time to visit San Luis
- The worst time to visit San Luis
- Spring weather in San Luis
- Summer weather in San Luis
- Autumn weather in San Luis
- Winter weather in San Luis
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of San Luis
San Luis, a city located in Argentina, experiences a Mid-latitude steppe type (BSk) climate as per the Köppen climate classification. This specific classification signifies a predominantly semi-arid climate, characterized by evenly spread rainfall throughout the year and vast temperature fluctuations.
The climate San Luis witnesses throughout the year varies from a cool 5.9°C (42.6°F) to a warm 31°C (87.8°F). While January and December exhibit intensively high temperatures hovering around 29.5°C (85.1°F) to 31°C (87.8°F), the coldest periods are observed from June to August, with temperatures dipping to 5.9°C (42.6°F) to 18.3°C (64.9°F). Humidity experiences a peak of 63% during the month of May and is lowest during January and December at 43% to 44%.
Rainfall, quite evenly spread over the year, ranges from 2mm (0.08") to 59mm (2.32"). The highest precipitation occurs from November to January, with 57mm (2.24") in November, 49mm (1.93") in December and 59mm (2.32") in January. The driest phase prevails from June to August, when the rainfall is minimal, fluctuating between 2mm (0.08") to 3mm (0.12"). Wind speed embodies an annual span from 13.1km/h (8.1mph) to 18.6km/h (11.6mph). Peak wind periods occur during October and November with speeds nearing 18.6km/h (11.6mph) and 18.2km/h (11.3mph) respectively.
The climate San Luis witnesses throughout the year varies from a cool 5.9°C (42.6°F) to a warm 31°C (87.8°F). While January and December exhibit intensively high temperatures hovering around 29.5°C (85.1°F) to 31°C (87.8°F), the coldest periods are observed from June to August, with temperatures dipping to 5.9°C (42.6°F) to 18.3°C (64.9°F). Humidity experiences a peak of 63% during the month of May and is lowest during January and December at 43% to 44%.
Rainfall, quite evenly spread over the year, ranges from 2mm (0.08") to 59mm (2.32"). The highest precipitation occurs from November to January, with 57mm (2.24") in November, 49mm (1.93") in December and 59mm (2.32") in January. The driest phase prevails from June to August, when the rainfall is minimal, fluctuating between 2mm (0.08") to 3mm (0.12"). Wind speed embodies an annual span from 13.1km/h (8.1mph) to 18.6km/h (11.6mph). Peak wind periods occur during October and November with speeds nearing 18.6km/h (11.6mph) and 18.2km/h (11.3mph) respectively.
The best time to visit San Luis
Visitors longing for a blend of mild weather and substantial sunlight should consider visiting San Luis between April to June. During these months, the city experiences moderate temperatures, ranging from 13.8°C (56.8°F) to 26.9°C (80.4°F). The sunshine hours are around 9.1 to 9.4 hours with sunlight gracing mostly half of each month. Rainfall is also considerably low, contributing to the pleasant weather conducive to outdoor activities.
The worst time to visit San Luis
While the climatic condition of San Luis is relatively mild and comfortable throughout the year, the period from June to August might not be the best. This phase is the coldest with temperatures ranging from 5.9°C (42.6°F) to 18.3°C (64.9°F). Moreover, these months, despite having minimal rainfall, do witness rare snowfall events. The combined effect of cold weather, reduced sunlight hours, and occasional snow results in a less than ideal time for tourists.
Spring weather in San Luis
Spring season in San Luis, lasting from September to November, bears temperatures ranging from 10.4°C (50.7°F) to 26.8°C (80.2°F). With humidity minimizing to 46% in September, the season offers relatively dry weather. Rainfall starts to ascend from a low 13mm (0.51") in September to a substantial high of 57mm (2.24") by November. Sunlight during this season is quite generous, with the city receiving over 9.3 hours of sunshine every day.
Summer weather in San Luis
Ranging from December to February, the summer months in San Luis are marked by peak temperatures from 19°C (66.2°F) to 31°C (87.8°F). The humidity also surges during these months, particularly in February when it reaches 50%. Rainfall is considerably high too, with January receiving the highest precipitation of 59mm (2.32"). Despite high rainfall and humidity, the city experiences maximum sunlight hours, touching 9.6 hours daily in December and February.
Autumn weather in San Luis
Autumn in San Luis spans from March to May, witnessing subtle winds with the speed averaging from 14.4km/h (8.9mph) to 15.5km/h (9.6mph). Temperature during these months fluctuates from 10.3°C (50.5°F) to 26.9°C (80.4°F) along with a drop in humidity from 52% to 63%. The rainfall dips gradually from 40mm (1.57") in March to a low 8mm (0.31") in May. The daylight hours notably recede from 12.3 hours to 10.4 hours during this season.
Winter weather in San Luis
The winter season in San Luis, extending from June to August, experiences temperatures in the range of 5.9°C (42.6°F) to 18.3°C (64.9°F). The rainfall during these months is significantly low, hitting its annual minimum of 2mm (0.08") to 3mm (0.12"). The city undergoes rare snowfall events with about half a day of snowfall maximum. Winter remains the least preferred season due to the combination of low temperatures, scarce rainfall, and limited sunshine hours, averaging between 9.3 to 9.4 hours daily.
Weather in January
January is typically warm in San Luis, Argentina, marking the commencement of the New Year with vibrant sunny days. A distinctive characteristic of the weather in January is high temperatures of 31°C (87.8°F), perfect for outdoor activities. Weather in January »
Weather in February
February sees a subtle drop in the temperature compared to January in San Luis, offering a nice balance between warmth and comfort. With high temperatures around 29.5°C (85.1°F) and almost identical sunshine to that of January, February stands as an inviting and comfortable month. Weather in February »
Weather in March
As the golden leaves of autumn start appearing in March in San Luis, it signals the departure of summer and a transition towards cooler months ahead. The overall weather in March has a mild feeling with average high temperatures of 26.9°C (80.4°F). Weather in March »
Weather in April
April in San Luis ushers in the splendid display of autumn, accompanied by mildly cooler temperatures. With the high temperatures relatively low at 22.7°C (72.9°F), April is certainly not as warm as the previous months. Transitioning from April to May, the decreasing temperature trend continues, with the humidity staying fairly consistent. Weather in April »
Weather in May
May brings a crispness in the air, becoming the harbinger of the approaching winter. The maximum temperature remains a manageable 18.7°C (65.7°F), signifying a marked shift in the weather. Climatic changes in May lead to cooler weather, which is then carried into the subsequent months. Weather in May »
Weather in June
It is the beginning of winter in June in San Luis, symbolized by the longest night and shortest day of the year. With the highest temperature of only 15.8°C (60.4°F), the winters start to make their presence felt. The journey to July sees a further dip in the temperature, making the days and nights significantly cooler. Weather in June »
Weather in July
The heart of winter is represented by July in San Luis and has the distinction of being the coldest month of the year with the highest temperature averaging 14.6°C (58.3°F). As July gives way to August, a slow surge in temperature can be noticed, indicating a transition towards spring. Weather in July »
Weather in August
The final days of winter are marked by August in San Luis. Moving into this month, a noticeable upward trend in the temperature is witnessed with high temperatures around 18.3°C (64.9°F). August gives a sneak peek into spring, preparing the town for a rise in temperature in September. Weather in August »
Weather in September
September in San Luis is a celebration of spring, characterized by longer days and blooming flora. The high temperatures are on a rising curve at 20.7°C (69.3°F), bringing a hint of warmth back into the air. The weather dynamic from September to October changes slightly, with temperature continuing to climb and the humidity level dropping. Weather in September »
Weather in October
October turns up the heat a bit more in San Luis, setting the stage for the imminent summer. Climbing beyond spring, the high temperatures reach a comfortable 23.7°C (74.7°F) in October. The consistent visibility of 10km (6.2mi) suggests there is rarely any fog or haze to obscure the stunning view of the city. Weather in October »
Weather in November
As summer approaches in November, San Luis prepares for warm days and slightly cooler nights. The highest temperature remains around 26.8°C (80.2°F), times when air conditioning becomes everyone's best friend. Moving towards December, the trend of high temperatures persists, creating a warmer atmosphere. Weather in November »
Weather in December
December embraces summer wholeheartedly in San Luis, wrapping up the year on a warm note. It carries forward the high temperature from November, reaching around 29.5°C (85.1°F). As the year concludes, the weather remains consistent, characterized by warm days and mildly cold nights. Weather in December »
[Resources]Frequently asked questions
What time of the year is the hottest in San Luis?
January is the warmest month in San Luis, Argentina, with an average high-temperature of 31°C (87.8°F) and an average low-temperature of 20.1°C (68.2°F).
What is the wettest month in San Luis?
The month with the most rainfall in San Luis is January, when the rain falls for 12.9 days and typically aggregates up to 59mm (2.32") of precipitation.
How many days does it rain in San Luis?
In San Luis, Argentina, during the entire year, the rain falls for 102.6 days and collects up to 350mm (13.78") of precipitation.
When it does not snow in San Luis?
January through May, October through December are months without snowfall.
How much does it snow in San Luis?
In San Luis, during the entire year, snow aggregates up to 10mm (0.39").
What is the month with the most sunshine in San Luis?
The months with the most sunshine in San Luis, Argentina, are January and December, with an average of 9.6h of sunshine.
What is the month with the highest UV index in San Luis?
January, February, October through December, with an average maximum UV index of 6, are months with the highest UV index.
What is the most humid month in San Luis?
May is the most humid month in San Luis, Argentina, with an average relative humidity of 63%.
What is the month with the least sunshine in San Luis?
With an average of 9h of sunshine, May has the least sunshine of the year in San Luis, Argentina.
What is the month with the lowest UV index in San Luis?
The months with the lowest UV index in San Luis, Argentina, are May and June, with an average maximum UV index of 3.
When does it snow in San Luis?
June through September are months with snowfall.
What is the snowiest month in San Luis?
The month with the most snowfall in San Luis is June, when snow falls for 0.3 days and typically aggregates up to 6mm (0.24") of snow.
What is the month with the shortest days in San Luis?
The month with the shortest days in San Luis, Argentina, is June, with an average of 10h and 0min of daylight.
What are the coldest months in San Luis?
July, with an average high of 14.6°C (58.3°F) and a low of 5.9°C (42.6°F), signifies the coldest month of the year in San Luis, Argentina.
What is the driest month in San Luis?
July and August are months with the least rain in San Luis when the rain falls for 2.6 days and typically aggregates up to 2mm (0.08") of rain.
What is the least humid month in San Luis?
With an average relative humidity of 43%, December is the least humid month.
When are the longest days in San Luis?
The month with the longest days in San Luis is December, with an average of 14h and 18min of daylight.
Is there Daylight Saving Time (DST) in San Luis?
San Luis, Argentina, does not utilize Daylight Saving Time (DST). -03 timezone is used over the entire year.
Average temperature
San Luis, Argentina
The warmest month (with the highest average high temperature) is January (31°C).
The month with the lowest average high temperature is July (14.6°C).
The month with the highest average low temperature is January (20.1°C).
The coldest month (with the lowest average low temperature) is July (5.9°C).
Average pressure
San Luis, Argentina
- Average pressure in January:
1009.1mbar - Average pressure in February:
1009.9mbar - Average pressure in March:
1012.1mbar - Average pressure in April:
1014.6mbar - Average pressure in May:
1015.9mbar - Average pressure in June:
1016.5mbar
- Average pressure in July:
1017.9mbar - Average pressure in August:
1016.3mbar - Average pressure in September:
1015.4mbar - Average pressure in October:
1012.5mbar - Average pressure in November:
1010.1mbar - Average pressure in December:
1008.3mbar
The month with the highest atmospheric pressure is July (1017.9mbar).
The month with the lowest atmospheric pressure is December (1008.3mbar).
Average wind speed
San Luis, Argentina
- Average wind speed in January:
16.9km/h - Average wind speed in February:
15.9km/h - Average wind speed in March:
15.5km/h - Average wind speed in April:
14.4km/h - Average wind speed in May:
13.1km/h - Average wind speed in June:
13.7km/h
- Average wind speed in July:
14.1km/h - Average wind speed in August:
16.4km/h - Average wind speed in September:
17.2km/h - Average wind speed in October:
18.6km/h - Average wind speed in November:
18.2km/h - Average wind speed in December:
17.2km/h
The windiest month (with the highest average wind speed) is October (18.6km/h).
The calmest month (with the lowest average wind speed) is May (13.1km/h).
Average humidity
San Luis, Argentina
The month with the highest relative humidity is May (63%).
The month with the lowest relative humidity is December (43%).
Average rainfall
San Luis, Argentina
The wettest month (with the highest rainfall) is January (59mm).
The driest months (with the least rainfall) are July and August (2mm).
Average rainfall days
San Luis, Argentina
- Average rainfall days in January:
12.9 days - Average rainfall days in February:
12.3 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
9.1 days - Average rainfall days in May:
5.3 days - Average rainfall days in June:
2.2 days
- Average rainfall days in July:
2.6 days - Average rainfall days in August:
1.7 days - Average rainfall days in September:
6.1 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
14.2 days - Average rainfall days in December:
13.4 days
The month with the highest number of rainy days is November (14.2 days).
The month with the least rainy days is August (1.7 days).
Average snowfall
San Luis, Argentina
The month with the highest snowfall is June (6mm).
The months with the least snowfall are January, February, March, April, May, October, November and December (0mm).
Average snowfall days
San Luis, Argentina
- 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:
0.3 days
- Average snowfall days in July:
0.5 days - Average snowfall days in August:
0.2 days - Average snowfall days in September:
0.3 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 (0.5 days).
The months with the least snowfall days are January, February, March, April, May, October, November and December (0 days).
Average daylight / Average sunshine
San Luis, Argentina
- Average daylight in January:
14h and 1min - Average daylight in February:
13h and 2min - Average daylight in March:
12h and 2min - Average daylight in April:
11h and 1min - Average daylight in May:
10h and 2min - Average daylight in June:
10h and 0min
- Average daylight in July:
10h and 1min - Average daylight in August:
10h and 5min - Average daylight in September:
11h and 5min - Average daylight in October:
12h and 5min - Average daylight in November:
13h and 5min - Average daylight in December:
14h and 2min
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 4min - Average sunshine in February:
9h and 3min - Average sunshine in March:
9h and 2min - Average sunshine in April:
9h and 1min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
9h and 2min - Average sunshine in August:
9h and 3min - Average sunshine in September:
9h and 2min - Average sunshine in October:
9h and 1min - Average sunshine in November:
9h and 2min - Average sunshine in December:
9h and 4min
The months with the most sunshine are January and December (Average sunshine: 9h and 36min).
The month with the least sunshine is May (Average sunshine: 9h and 0min).
Average sunshine days
San Luis, Argentina
- Average sunshine days in January:
14.9 days - Average sunshine days in February:
12.5 days - Average sunshine days in March:
17.9 days - Average sunshine days in April:
19.5 days - Average sunshine days in May:
23.4 days - Average sunshine days in June:
27.3 days
- Average sunshine days in July:
28.2 days - Average sunshine days in August:
28.3 days - Average sunshine days in September:
21.6 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
12.9 days - Average sunshine days in December:
13.5 days
The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is February (12.5 days).
Average UV index
San Luis, Argentina
The months with the highest UV index are January, February, October, November and December (UV index 6).
The months with the lowest UV index are May and June (UV index 3).
Average cloud cover
San Luis, Argentina
The months with the most cloud cover are April and May (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility
San Luis, Argentina
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).
San Luis, Argentina
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