Climate averages 1991–2020
Trelew weather
in July.
A cool, very dry month: the coolest and one of the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a cool month in Trelew: daytime highs average 11.8°C and nights cool to about 2.5°C. By daytime temperature it is the coolest month of the year.
Expect about 14 mm of rain on roughly 4 days, which makes July a very dry month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 9 h 19 min on an average July day.
The nearest other city in this atlas is Comodoro Rivadavia (338 km away). In July its highs average 9.1°C, 2.7°C cooler than Trelew, with 20 mm of rain.
Among the 67 cities listed in Argentina, Trelew ranks joint 60th of 67 for the warmest July highs and joint 9th of 67 for the driest July (rainfall, lowest first). The mean July high of those 67 cities is 14.6°C; Trelew is 2.8°C cooler than that mean.
From July to August, average highs rise by 2.6°C to 14.5°C, and monthly rainfall stays at 14 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Trelew climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.1°C16.2°C | 16.2°C | 15 | 3.0 | 15.015 h |
| February | 27.5°C15.2°C | 15.2°C | 22 | 3.7 | 13.814 h |
| March | 25.1°C13.5°C | 13.5°C | 21 | 3.5 | 12.412 h |
| April | 20.4°C9.8°C | 9.8°C | 19 | 2.9 | 10.911 h |
| May | 15.8°C6.5°C | 6.5°C | 23 | 4.0 | 9.710 h |
| June | 12.1°C3.4°C | 3.4°C | 23 | 4.1 | 9.09 h |
| July, selected | 11.8°C2.5°C | 2.5°C | 14 | 3.5 | 9.39 h |
| August | 14.5°C4.3°C | 4.3°C | 14 | 3.4 | 10.410 h |
| September | 17.3°C6.1°C | 6.1°C | 18 | 4.0 | 11.812 h |
| October | 21.3°C9.2°C | 9.2°C | 18 | 4.1 | 13.213 h |
| November | 24.7°C12.2°C | 12.2°C | 16 | 3.2 | 14.615 h |
| December | 27.3°C14.5°C | 14.5°C | 18 | 3.0 | 15.315 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Comodoro Rivadavia in JulyArgentina · 338 kmHigh 9.1°C · Low 4.1°C · 20 mm rain
- General Roca in JulyArgentina · 506 kmHigh 12.3°C · Low 3.1°C · 18 mm rain
- Cipolletti in JulyArgentina · 530 kmHigh 12.2°C · Low 2.6°C · 18 mm rain
- Neuquén in JulyArgentina · 531 kmHigh 11.9°C · Low 2.5°C · 18 mm rain
- San Carlos de Bariloche in JulyArgentina · 547 kmHigh 3.8°C · Low -0.6°C · 140 mm rain
- Bahía Blanca in JulyArgentina · 565 kmHigh 12.7°C · Low 5.0°C · 34 mm rain
- Puerto Montt in JulyChile · 658 kmHigh 9.6°C · Low 4.7°C · 276 mm rain
- Osorno in JulyChile · 712 kmHigh 10.3°C · Low 3.4°C · 231 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Trelew) is explained once on the Trelew year overview and on the Sources, method and limits page.