Trelew Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Trelew.
Climate overview of Trelew
Trelew, Chubut, Argentina, sees big temperature differences between seasons, with January peaking at 29°C (84°F) and July dropping to 13°C (55°F).
Rain/snowfall is extremely rare, with only 242 mm (9.5 in) falling across the entire year. The most sunshine falls in January, with an average of 10.4 hours of daily sunshine.
Trelew Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Trelew — and find the best time to visit.
Monthly Temperature in Trelew
Visitors to Trelew can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in January, the warmest time of the year, to a moderate 13°C (55°F) during cooler months like July.
At night, you can expect temperatures ranging from 16°C (61°F) in January to around 2°C (36°F) during July.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Trelew
Trelew experiences desert-like conditions in terms of precipitation with almost no rain/snowfall, generally receiving 242 mm (9.5 in) annually. Year-round, Trelew has a balanced climate with minimal variation in precipitation. The difference between the wettest month, February, with 26 mm (1 in), and the driest month, August, with 16 mm (0.6 in), is minimal. For more details, please visit our Trelew Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Trelew
Seasonal changes in sunshine hours are quite dramatic in Trelew. While January receives considerable daily sunshine with up to 10.4 hours, June marks the darkest time of the year, where sunshine is scarce with only 4.4 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Trelew
The mean water temperature over the year ranges from 8°C (46°F) in September to 16°C (61°F) in January.
Water temperature over the year
Humidity in Trelew by Month
The relative humidity is moderate throughout the year in Trelew.
The city experiences its highest humidity in June, reaching 68%. In January, the humidity drops to its lowest level at 40%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Trelew
The average wind speed over the year ranges from 5 m/s (10 knots) to 8 m/s (16 knots). It is lower in April, May, June and July and higher in January and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Trelew
The weather does bring rainfall during this period, between 17 mm (0.7 in) and 22 mm (0.9 in). Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Trelew
What is the best time to visit Trelew?
January, February, March, April, September, October, November and December typically offer the most optimal weather in Trelew. In contrast, July tends to have less optimal conditions. Trelew has a distinct dry season from January to December.
What temperatures can I expect in Trelew?
Daytime highs range from 13°C (55°F) in July to 29°C (84°F) in January. Nighttime lows range from 2°C (36°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Trelew get?
Annual rainfall is around 242 mm (9.5 in). February is the wettest month with 26 mm (1 in), while August is the driest with 16 mm (0.6 in).
How sunny is Trelew?
Trelew receives around 2,654 hours of sunshine per year. January is the sunniest month with 311 hours, while June is the cloudiest with just 133 hours. Overall, Trelew enjoys abundant sunshine.
Trelew 3-Day Forecast
Trelew 3-Day Forecast
Trelew on the map
Trelew is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Córdoba
18°C (64°F) Salta
17°C (63°F) Buenos Aires16°C (61°F) Villa Carlos Paz16°C (61°F) Mendoza14°C (57°F) Mar del Plata13°C (55°F) San Carlos de Bariloche
4°C (39°F) San Martín de los Andes4°C (39°F) 
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