Las Heras Weather in September
What's the weather like in Las Heras (Santa Cruz) in September 2025?
The climate in Las Heras during September can be summarized as cool and very dry.
September is in the spring in Las Heras and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 13°C (56°F), whilst at night 2°C (36°F) is normal.
| Daytime temperature | 13.1°C 55.6°F |
|---|---|
| Nightly temperature | 2.1°C 35.8°F |
| Average temperature | 7.6°C 45.7°F |
| Daily sunshine | 6.3 hrs |
| Avg rainfall | 8 mm 0.3 ins |
| Rainy days | 4 days |
| Sea temperature | 8.4°C 47.1°F |
| Humidity | 54% |
| Windspeed | 23kph 14 mph |
On average September is the 4th driest month of the year in Las Heras with around 8mm 0.3 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 6.3 hours of sunshine per day.
September temperatures in Las Heras
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Las Heras in September 2025.
Other monthly averages
Best places to visit in September
Las Heras weather stats
| Hottest month: | January | 22.6°C 72.7°F |
|---|---|---|
| Driest month: | January | 7mm 0.3ins |
| Sunniest month: | February | 8.3hrs |
| Coldest month: | July | 7.1°C 44.8°F |
| Wettest month: | May | 18mm 0.7ins |
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