Climate averages 1991–2020
Trelew weather
in August.
A cool, very dry month: the 10th warmest and one of the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a cool month in Trelew: daytime highs average 14.5°C and nights cool to about 4.3°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 14 mm of rain on roughly 3 days, which makes August a very dry month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 10 h 22 min on an average August day.
The nearest other city in this atlas is Comodoro Rivadavia (338 km away). In August its highs average 11.0°C, 3.5°C cooler than Trelew, with 21 mm of rain.
Among the 67 cities listed in Argentina, Trelew ranks 60th of 67 for the warmest August highs and joint 8th of 67 for the driest August (rainfall, lowest first). The mean August high of those 67 cities is 17.2°C; Trelew is 2.8°C cooler than that mean.
From August to September, average highs rise by 2.9°C to 17.3°C, and monthly rainfall rises from 14 mm to 18 mm.
The annual picture
August 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 | 11.8°C2.5°C | 2.5°C | 14 | 3.5 | 9.39 h |
| August, selected | 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
August in nearby cities
- Comodoro Rivadavia in AugustArgentina · 338 kmHigh 11.0°C · Low 5.1°C · 21 mm rain
- General Roca in AugustArgentina · 506 kmHigh 15.3°C · Low 4.6°C · 14 mm rain
- Cipolletti in AugustArgentina · 530 kmHigh 15.1°C · Low 4.2°C · 12 mm rain
- Neuquén in AugustArgentina · 531 kmHigh 14.9°C · Low 4.0°C · 12 mm rain
- San Carlos de Bariloche in AugustArgentina · 547 kmHigh 4.9°C · Low -0.1°C · 131 mm rain
- Bahía Blanca in AugustArgentina · 565 kmHigh 15.1°C · Low 6.4°C · 35 mm rain
- Puerto Montt in AugustChile · 658 kmHigh 10.4°C · Low 4.9°C · 277 mm rain
- Osorno in AugustChile · 712 kmHigh 11.2°C · Low 3.8°C · 213 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.