San Juan Province Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in San Juan Province, Argentina in September.

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San Juan Barreal San Agustín de Valle Fértil

Considering a trip to San Juan Province, Argentina this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in San Juan Province in September

San Juan Province, Argentina is a region in Argentina. September in San Juan Province generally has temperatures that range from mild to warm, with low precipitation.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is mild in Barreal at 15°C (59°F) to warm in San Juan at 23°C (73°F). Nighttime temperatures generally drop to 8°C (46°F) in San Juan and -1°C (30°F) in Barreal.

To learn more about the conditions in specific areas of San Juan Province, Argentina, check out the map below.

Precipitation

In September, precipitation varies across different areas. From low rainfall in San Juan with an average of 24 mm (0.9 in) to low rainfall in Barreal with 29 mm (1.1 in).

Average sunshine

Several destinations enjoy plenty of sunshine this month. San Juan sees close to 263 hours of sunlight, making it great for sun lovers.

Explore San Juan Province by month

Pick a month to see the average temperature, rainfall and sunshine in San Juan Province — and find the best time to visit. (based on San Juan)

January33°C (91°F) February32°C (90°F) March29°C (84°F) April25°C (77°F) May21°C (70°F) June18°C (64°F) This monthJuly18°C (64°F) August21°C (70°F) September23°C (73°F) October27°C (81°F) November30°C (86°F) December32°C (90°F)
Best Time to Visit San Juan Province →

Best Places to Visit in San Juan Province in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across San Juan Province.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in San Juan Province

What is the weather like in September for some of the most popular destinations in San Juan Province, Argentina?

Temperature range in San Juan Province (September)

Precipitation variation in San Juan Province (September)

San Juan

In September San Juan generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 8°C (46°F) and low monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
21°C (70°F)
23°C (73°F)
27°C (81°F)
Min temperature
4°C (39°F)
8°C (46°F)
12°C (54°F)
Monthly sun hours
255 hours
263 hours
305 hours
Monthly rainfall
14 mm (0.6 in)
24 mm (0.9 in)
32 mm (1.3 in)
Monthly rainy days
a single day
2 days
2 days
Weather conditions
perfect
perfect
perfect
Climate in San Juan →

Barreal

In September Barreal generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around -1°C (30°F) and low monthly snow/rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
12°C (54°F)
15°C (59°F)
19°C (66°F)
Min temperature
-3°C (27°F)
-1°C (30°F)
3°C (37°F)
Monthly snow/rainfall
26 mm (1 in)
29 mm (1.1 in)
28 mm (1.1 in)
Monthly rainy days
2 days
4 days
4 days
Weather conditions
tolerable
pleasant
perfect
Climate in Barreal →

San Agustín de Valle Fértil

In September San Agustín de Valle Fértil generally has pleasant temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 9°C (48°F) and low monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
19°C (66°F)
22°C (72°F)
25°C (77°F)
Min temperature
5°C (41°F)
9°C (48°F)
12°C (54°F)
Monthly rainfall
11 mm (0.4 in)
25 mm (1 in)
41 mm (1.6 in)
Monthly rainy days
a single day
2 days
2 days
Weather conditions
perfect
perfect
perfect
Climate in San Agustín de Valle Fértil →

Is your destination not in the list? Have a look at all destinations in San Juan Province, in Argentina.

Popular cities in September

Day & night temperatures, rainfall and average weather in San Juan Province in September.

City Weather Day temp Night temp Rainfall
San Juan 23°C (73°F) 8°C (46°F) 24 mm (0.9 in)
Barreal 15°C (59°F) -1°C (30°F) 29 mm (1.1 in)
San Agustín de Valle Fértil 22°C (72°F) 9°C (48°F) 25 mm (1 in)

San Juan Province weather in September: frequently asked questions

What is the weather like in San Juan Province, Argentina in September?

In September, San Juan Province, Argentina generally has perfect weather conditions. San Juan sees daytime temperatures near 23°C (73°F), with nights cooling to roughly 8°C (46°F).

What is the average temperature in San Juan Province, Argentina in September?

Average temperatures in San Juan Province, Argentina during September range from a nighttime low near 8°C (46°F) to a daytime high around 23°C (73°F) in San Juan.

Does San Juan Province, Argentina get a lot of rain in September?

Rain is generally moderate to light in San Juan Province, Argentina during September, with San Juan averaging close to 24 mm (0.9 in).

Is September a Good Time to Visit San Juan Province, Argentina?

We consider September to be one of the best times to travel to San Juan Province, Argentina. Typically, the climate in San Juan is perfect. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in March, April, May, June, July, August, September and October offering mostly perfect weather in San Juan. On the other hand, the month of January tends to have unpleasant weather conditions.

Interested in more climate information?

We have much more information about the climate in San Juan Province.

Weather and climate has detailed information for every country in the world. Are you going to Argentina? Get detailed historical weather averages for many cities in Argentina.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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