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Rio Negro Province

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Rio Negro Province Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Rio Negro Province year round climate

  • Spring (September to November): Average 7.3–14.4°C, dry and cool climate with abundant sunshine and a large diurnal temperature range. Common activities: outdoor hiking, viewing autumn scenery. Recommended clothing: warm jacket, long-sleeved clothing, comfortable shoes.
  • Summer (December to February): Average 17.8–21.8°C, warm and dry climate with strong sunshine and very little rainfall. Common activities: outdoor activities, exploring natural landscapes. Recommended clothing: light clothing, sun hat, sunscreen.
  • Autumn (March to May): Average 3.2–14.6°C, dry and cool climate, gradually turning colder, with a large diurnal temperature range. Common activities: viewing autumn scenery, outdoor leisure activities. Recommended clothing: warm jacket, long-sleeved clothing, comfortable shoes.
  • Winter (June to August): Average 1.5–4.4°C, cold and dry climate with shorter daylight hours. Common activities: indoor activities, tasting local cuisine. Recommended clothing: heavy coat, warm hat, scarf, gloves.

Rio Negro Province climatological average

Annual average temperature: approx. 11.0°C / Annual rainfall: approx. 7 mm / Summer humidity: 30%–40% / Rainiest month: December

Rio Negro Province monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
21.8°C
0.3
February
20.5°C
0.7
March
14.6°C
0.2
April
8.8°C
0.6
May
3.2°C
0.4
June
3.8°C
1.3
July
1.5°C
0.7
August
4.4°C
0.5
September
7.3°C
0.3
October
14.4°C
0
November
13.9°C
0.2
December
17.8°C
1.8

Rio Negro Province weather for the next seven days

12/20
Saturday
Sunny
23.5°C/12.2°C
12/21
Sunday
Sunny
22.1°C/10.4°C
12/22
Monday
Sunny
24.3°C/9.2°C
12/23
Tuesday
Sunny
23.2°C/11.2°C
12/24
Wednesday
Sunny
25.7°C/9.1°C
12/25
Thursday
Sunny
27.4°C/12.6°C
12/26
Friday
Sunny
26.6°C/14.5°C

Rio Negro Province Frequently Asked Questions and Useful Information for Travel

What does "Rio Negro" mean in English?

The name "Rio Negro" translates to "Black River" in English. This name was given due to the river's dark coloration, a result of high concentrations of humic acids from decomposing organic matter.

What are some must-do activities for a week in Bariloche, Rio Negro Province?

For a week in Bariloche, consider exploring the city and enjoying chocolate tasting on day one. Dedicate day two to hiking to Refugio Frey, and day three to cycling the Circuito Chico. Day four can involve a ferry ride and a tour to Isla Victoria, with day five reserved for hiking Cerro Tronador.

What is the population of Rio Negro Province?

According to the 2022 census, Rio Negro Province has a population of 750,768.

Why is the river in Rio Negro Province called "Rio Negro"?

The river is called Rio Negro, meaning "Black River," because of its striking dark water color. This distinct hue comes from dissolved organic matter, specifically humic acids, rather than sediment or pollution, making it one of the world's largest blackwater rivers.

What kind of natural beauty can I expect in Rio Negro Province?

Rio Negro Province offers diverse natural landscapes, including stunning lakes, majestic mountains perfect for hiking, and the unique experience of its famously dark 'blackwater' rivers. The region is renowned for its scenic beauty and outdoor adventure opportunities.