Climate averages 1991–2020
Río Gallegos weather
in May.
A cold, fairly dry month: the 9th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a cold month in Río Gallegos: daytime highs average 7.9°C and nights cool to about 1.3°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 26 mm of rain on roughly 6 days, which makes May a fairly dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 49 min on an average May day.
The nearest other city in this atlas is Punta Arenas (205 km away). In May its highs average 6.1°C, 1.8°C cooler than Río Gallegos, with 60 mm of rain.
Among the 67 cities listed in Argentina, Río Gallegos ranks joint 66th of 67 for the warmest May highs and joint 7th of 67 for the driest May (rainfall, lowest first). The mean May high of those 67 cities is 18.0°C; Río Gallegos is 10.1°C cooler than that mean.
From May to June, average highs fall by 3.4°C to 4.5°C, and monthly rainfall falls from 26 mm to 22 mm.
The annual picture
May 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
Río Gallegos climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 18.3°C8.5°C | 8.5°C | 42 | 10.9 | 16.116 h |
| February | 17.9°C8.2°C | 8.2°C | 34 | 8.3 | 14.514 h |
| March | 15.7°C6.8°C | 6.8°C | 37 | 9.0 | 12.513 h |
| April | 12.1°C4.1°C | 4.1°C | 29 | 7.4 | 10.511 h |
| May, selected | 7.9°C1.3°C | 1.3°C | 26 | 5.9 | 8.89 h |
| June | 4.5°C-1.2°C | -1.2°C | 22 | 5.7 | 7.98 h |
| July | 4.6°C-1.6°C | -1.6°C | 20 | 5.5 | 8.38 h |
| August | 6.9°C-0.4°C | -0.4°C | 21 | 5.3 | 9.810 h |
| September | 10.0°C1.4°C | 1.4°C | 21 | 6.1 | 11.712 h |
| October | 13.6°C3.6°C | 3.6°C | 22 | 6.5 | 13.614 h |
| November | 16.0°C5.8°C | 5.8°C | 31 | 9.2 | 15.515 h |
| December | 17.2°C7.5°C | 7.5°C | 48 | 12.1 | 16.517 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
May in nearby cities
- Punta Arenas in MayChile · 205 kmHigh 6.1°C · Low 2.5°C · 60 mm rain
- Comodoro Rivadavia in MayArgentina · 654 kmHigh 12.8°C · Low 7.3°C · 29 mm rain
- Stanley in MayFalkland Islands · 785 kmHigh 6.9°C · Low 3.6°C · 48 mm rain
- Trelew in MayArgentina · 977 kmHigh 15.8°C · Low 6.5°C · 23 mm rain
- San Carlos de Bariloche in MayArgentina · 1176 kmHigh 7.9°C · Low 2.8°C · 119 mm rain
- General Roca in MayArgentina · 1406 kmHigh 16.3°C · Low 7.1°C · 27 mm rain
- Neuquén in MayArgentina · 1412 kmHigh 16.0°C · Low 6.7°C · 26 mm rain
- Cipolletti in MayArgentina · 1415 kmHigh 16.2°C · Low 6.8°C · 26 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 Río Gallegos) is explained once on the Río Gallegos year overview and on the Sources, method and limits page.