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La Rioja, La Rioja Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in La Rioja, La Rioja?
La Rioja, La Rioja gets 368 mm of precipitation a year over about 33 rainy days. January is the warmest month (average high 36°C) and July the coldest (average low 4°C).
Semi-arid climate
La Rioja, La Rioja has hot summers and warm winters. Daytime highs range from about 20°C in July to 36°C in December. January is usually the wettest month. The most comfortable time to visit is typically May to August, when daytime highs sit near 22°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Jun–Aug | 5° | 21° |
| Spring | Sep–Nov | 15° | 31° |
| Summer | Dec–Feb | 21° | 35° |
| Autumn | Mar–May | 14° | 27° |
How much rain does La Rioja get?
La Rioja gets 368 mm of precipitation in an average year, spread over about 33 days with measurable rain. That is fewer rainy days than 86% of Argentina.
January is the wettest month, with 74 mm. June is the driest, with 5 mm. February has the most rainy days, about 5.
La Rioja weather by month
La Rioja weather in January
In January, La Rioja averages a high of 36°C and a low of 22°C. It gets 74 mm of precipitation over about 5 rainy days. Estimated sunshine is 61% of daylight hours, derived from ERA5 cloud cover. The January record high is 46°C (2017) and the record low is 11°C (1971).
La Rioja weather in February
In February, La Rioja averages a high of 33°C and a low of 20°C. It gets 64 mm of precipitation over about 5 rainy days. Estimated sunshine is 61% of daylight hours, derived from ERA5 cloud cover. The February record high is 45°C (2025) and the record low is 6°C (2023).
La Rioja weather in March
In March, La Rioja averages a high of 31°C and a low of 18°C. It gets 46 mm of precipitation over about 4 rainy days. Estimated sunshine is 65% of daylight hours, derived from ERA5 cloud cover. The March record high is 42°C (2002) and the record low is 7°C (2021).
La Rioja weather in April
In April, La Rioja averages a high of 27°C and a low of 14°C. It gets 33 mm of precipitation over about 3 rainy days. Estimated sunshine is 69% of daylight hours, derived from ERA5 cloud cover. The April record high is 38°C (1995) and the record low is 2°C (1985).
La Rioja weather in May
In May, La Rioja averages a high of 23°C and a low of 10°C. It gets 11 mm of precipitation over about 2 rainy days. Estimated sunshine is 69% of daylight hours, derived from ERA5 cloud cover. The May record high is 37°C (1997) and the record low is -3°C (1979). May is one of the most comfortable months to visit.
La Rioja weather in June
In June, La Rioja averages a high of 20°C and a low of 6°C. It gets 5 mm of precipitation over about 1 rainy days. Estimated sunshine is 71% of daylight hours, derived from ERA5 cloud cover. The June record high is 30°C (1976) and the record low is -5°C (1979). June is one of the most comfortable months to visit.
La Rioja weather in July
In July, La Rioja averages a high of 20°C and a low of 4°C. It gets 7 mm of precipitation over about 1 rainy days. Estimated sunshine is 80% of daylight hours, derived from ERA5 cloud cover. The July record high is 37°C (1987) and the record low is -7°C (2000). July is one of the most comfortable months to visit.
La Rioja weather in August
In August, La Rioja averages a high of 24°C and a low of 7°C. It gets 10 mm of precipitation over about 1 rainy days. Estimated sunshine is 84% of daylight hours, derived from ERA5 cloud cover. The August record high is 42°C (1996) and the record low is -8°C (2018). August is one of the most comfortable months to visit.
La Rioja weather in September
In September, La Rioja averages a high of 27°C and a low of 11°C. It gets 9 mm of precipitation over about 1 rainy days. Estimated sunshine is 82% of daylight hours, derived from ERA5 cloud cover. The September record high is 43°C (2004) and the record low is -2°C (2010).
La Rioja weather in October
In October, La Rioja averages a high of 31°C and a low of 16°C. It gets 20 mm of precipitation over about 2 rainy days. Estimated sunshine is 77% of daylight hours, derived from ERA5 cloud cover. The October record high is 45°C (2009) and the record low is 4°C (1991).
La Rioja weather in November
In November, La Rioja averages a high of 34°C and a low of 19°C. It gets 30 mm of precipitation over about 3 rainy days. Estimated sunshine is 67% of daylight hours, derived from ERA5 cloud cover. The November record high is 44°C (2003) and the record low is 3°C (2022).
La Rioja weather in December
In December, La Rioja averages a high of 36°C and a low of 21°C. It gets 59 mm of precipitation over about 4 rainy days. Estimated sunshine is 67% of daylight hours, derived from ERA5 cloud cover. The December record high is 47°C (1971) and the record low is 8°C (1980).
Sunshine, humidity and wind in La Rioja
August is the sunniest month in La Rioja, with estimated sunshine of 84% of daylight hours from ERA5 cloud cover. January is the cloudiest, at 61%. The annual cloud-cover estimate is 71% of daylight hours; it is not a measurement of sunshine duration. La Rioja is sunnier than 94% of Argentina.
Humidity peaks in April at 60% and is lowest in September at 32%.
La Rioja has about 96 days a year above 32°C. La Rioja is hotter than 97% of Argentina.
First and last freeze in La Rioja
The first fall freeze in La Rioja typically comes around June 17, and the last spring freeze around August 7. That leaves a frost-free growing season of about 314 days.
La Rioja weather records
These records cover LA RIOJA AERO. during 1970–2025. Earlier records or other stations in the city may differ.
The hottest temperature on record at the La Rioja station is 47°C, on December 28, 1971. The coldest is -8°C, on August 21, 2018.
The wettest day in the available station history brought 380 mm of precipitation, on February 28, 1977.
29 all-time records have been set at the station since 1970.
The best time to visit La Rioja
The most comfortable time to visit is typically May to August, when daytime highs sit near 22°C.
Winter (June–August) is warm, with average highs around 21°C and lows near 5°C.
Spring (September–November) is hot, with average highs around 31°C and lows near 15°C.
Summer (December–February) is hot, with average highs around 35°C and lows near 21°C.
Autumn (March–May) is warm, with average highs around 27°C and lows near 14°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 22° | 36° | 74 mm | 5 | 48% | 61% | 46° | 11° |
| February | 20° | 33° | 64 mm | 5 | 54% | 61% | 45° | 6° |
| March | 18° | 31° | 46 mm | 4 | 57% | 65% | 42° | 7° |
| April | 14° | 27° | 33 mm | 3 | 60% | 69% | 38° | 2° |
| May | 10° | 23° | 11 mm | 2 | 58% | 69% | 37° | -3° |
| June | 6° | 20° | 4.6 mm | 1 | 60% | 71% | 30° | -5° |
| July | 4° | 20° | 7.4 mm | 1 | 50% | 80% | 37° | -7° |
| August | 7° | 24° | 9.7 mm | 1 | 36% | 84% | 42° | -8° |
| September | 11° | 27° | 9.1 mm | 1 | 32% | 82% | 43° | -2° |
| October | 16° | 31° | 20 mm | 2 | 36% | 77% | 45° | 4° |
| November | 19° | 34° | 30 mm | 3 | 41% | 67% | 44° | 3° |
| December | 21° | 36° | 59 mm | 4 | 46% | 67% | 47° | 8° |
Station: LA RIOJA AERO., 5 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2025; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
La Rioja climate questions
How much rain does La Rioja get?
La Rioja gets 368 mm of precipitation in an average year, over about 33 rainy days.
What is the wettest month in La Rioja?
January is the wettest month in La Rioja, with 74 mm. June is the driest, with 5 mm.
How many rainy days does La Rioja have a year?
La Rioja has about 33 days with measurable rain in an average year. February has the most, about 5.
What is the hottest month in La Rioja?
January is the warmest month in La Rioja, with an average high of 36°C.
What is the coldest month in La Rioja?
July is the coldest month in La Rioja, with an average low of 4°C.
What is the record high temperature in La Rioja?
Within the available 1970–2025 station history, the record high at the La Rioja station is 47°C, set on December 28, 1971. The record low is -8°C, on August 21, 2018.
What is the sunniest month in La Rioja?
August is the sunniest month in La Rioja, with estimated sunshine of 84% of daylight hours from ERA5 cloud cover. January is the cloudiest.
When is the first frost in La Rioja?
The first fall freeze in La Rioja typically comes around June 17. The last spring freeze is around August 7.
What is the best time to visit La Rioja?
The most comfortable time to visit is typically May to August, when daytime highs sit near 22°C.