Climate averages 1991–2020
Trelew weather
in October.
A mild, fairly dry month: the 6th warmest and the joint 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Trelew: daytime highs average 21.3°C and nights cool to about 9.2°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 18 mm of rain on roughly 4 days, which makes October a fairly dry month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 14 min on an average October day.
The nearest other city in this atlas is Comodoro Rivadavia (338 km away). In October its highs average 16.3°C, 5.0°C cooler than Trelew, with 17 mm of rain.
Among the 67 cities listed in Argentina, Trelew ranks joint 41st of 67 for the warmest October highs and 2nd of 67 for the driest October (rainfall, lowest first). The mean October high of those 67 cities is 22.2°C; Trelew is 1.0°C cooler than that mean.
From October to November, average highs rise by 3.5°C to 24.7°C, and monthly rainfall falls from 18 mm to 16 mm.
The annual picture
October 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 | 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, selected | 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
October in nearby cities
- Comodoro Rivadavia in OctoberArgentina · 338 kmHigh 16.3°C · Low 8.6°C · 17 mm rain
- General Roca in OctoberArgentina · 506 kmHigh 22.4°C · Low 10.3°C · 36 mm rain
- Cipolletti in OctoberArgentina · 530 kmHigh 22.3°C · Low 10.0°C · 30 mm rain
- Neuquén in OctoberArgentina · 531 kmHigh 22.2°C · Low 9.9°C · 30 mm rain
- San Carlos de Bariloche in OctoberArgentina · 547 kmHigh 10.4°C · Low 2.5°C · 70 mm rain
- Bahía Blanca in OctoberArgentina · 565 kmHigh 20.6°C · Low 10.9°C · 64 mm rain
- Puerto Montt in OctoberChile · 658 kmHigh 13.7°C · Low 7.0°C · 180 mm rain
- Osorno in OctoberChile · 712 kmHigh 14.7°C · Low 5.9°C · 114 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.