Climate averages 1991–2020
Santa Rosa, Argentina weather
in May.
A mild, fairly dry month: the 9th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Santa Rosa, Argentina: daytime highs average 17.0°C and nights cool to about 8.6°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 30 mm of rain on roughly 5 days, which makes May a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 12 min on an average May day.
The nearest other city in this atlas is Bahía Blanca (294 km away). In May its highs average 16.7°C, about as warm as Santa Rosa, Argentina, with 38 mm of rain.
Among the 67 cities listed in Argentina, Santa Rosa, Argentina ranks joint 52nd of 67 for the warmest May highs and joint 13th of 67 for the driest May (rainfall, lowest first). The mean May high of those 67 cities is 18.0°C; Santa Rosa, Argentina is 0.9°C cooler than that mean.
From May to June, average highs fall by 3.1°C to 13.9°C, and monthly rainfall falls from 30 mm to 16 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
Santa Rosa, Argentina climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.1°C19.0°C | 19.0°C | 82 | 9.0 | 14.314 h |
| February | 28.3°C17.7°C | 17.7°C | 81 | 7.9 | 13.513 h |
| March | 25.6°C15.8°C | 15.8°C | 86 | 8.0 | 12.312 h |
| April | 21.0°C11.8°C | 11.8°C | 67 | 6.3 | 11.211 h |
| May, selected | 17.0°C8.6°C | 8.6°C | 30 | 5.0 | 10.210 h |
| June | 13.9°C5.1°C | 5.1°C | 16 | 3.3 | 9.710 h |
| July | 13.3°C4.1°C | 4.1°C | 19 | 3.7 | 9.910 h |
| August | 16.2°C5.7°C | 5.7°C | 27 | 4.0 | 10.711 h |
| September | 18.9°C8.0°C | 8.0°C | 48 | 5.8 | 11.812 h |
| October | 21.9°C11.2°C | 11.2°C | 82 | 9.6 | 13.013 h |
| November | 25.7°C14.5°C | 14.5°C | 74 | 8.0 | 14.014 h |
| December | 28.9°C17.5°C | 17.5°C | 85 | 8.5 | 14.615 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
- Bahía Blanca in MayArgentina · 294 kmHigh 16.7°C · Low 9.2°C · 38 mm rain
- Villa Mercedes, Argentina in MayArgentina · 344 kmHigh 18.5°C · Low 8.8°C · 29 mm rain
- Olavarría in MayArgentina · 355 kmHigh 16.0°C · Low 7.7°C · 47 mm rain
- Junín in MayArgentina · 377 kmHigh 18.1°C · Low 9.8°C · 62 mm rain
- Venado Tuerto in MayArgentina · 383 kmHigh 18.5°C · Low 10.2°C · 59 mm rain
- Río Cuarto in MayArgentina · 388 kmHigh 18.3°C · Low 9.4°C · 34 mm rain
- General Roca in MayArgentina · 395 kmHigh 16.3°C · Low 7.1°C · 27 mm rain
- San Luis in MayArgentina · 414 kmHigh 18.6°C · Low 9.1°C · 25 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 Santa Rosa) is explained once on the Santa Rosa, Argentina year overview and on the Sources, method and limits page.