Climate averages 1991–2020
Rancagua weather
in May.
A mild, wet month: the 8th warmest and the 9th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Rancagua: daytime highs average 18.4°C and nights cool to about 5.4°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 99 mm of rain on roughly 7 days, which makes May a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 22 min on an average May day.
The nearest other city in this atlas is Paine (40 km away). In May its highs average 19.8°C, 1.4°C warmer than Rancagua, with 70 mm of rain.
Among the 40 cities listed in Chile, Rancagua ranks joint 17th of 40 for the warmest May highs and 25th of 40 for the driest May (rainfall, lowest first). The mean May high of those 40 cities is 17.5°C; Rancagua is 0.8°C warmer than that mean.
From May to June, average highs fall by 3.3°C to 15.0°C, and monthly rainfall rises from 99 mm to 167 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
Rancagua climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.0°C16.8°C | 16.8°C | 6.2 | 1.4 | 14.114 h |
| February | 27.5°C16.0°C | 16.0°C | 6.7 | 1.5 | 13.313 h |
| March | 25.9°C13.5°C | 13.5°C | 11 | 1.8 | 12.312 h |
| April | 21.9°C8.7°C | 8.7°C | 44 | 4.0 | 11.311 h |
| May, selected | 18.4°C5.4°C | 5.4°C | 99 | 7.3 | 10.410 h |
| June | 15.0°C2.6°C | 2.6°C | 167 | 9.4 | 9.910 h |
| July | 14.4°C1.5°C | 1.5°C | 124 | 8.9 | 10.110 h |
| August | 15.9°C2.5°C | 2.5°C | 108 | 8.6 | 10.911 h |
| September | 17.8°C4.5°C | 4.5°C | 81 | 10.1 | 11.912 h |
| October | 20.1°C6.8°C | 6.8°C | 60 | 8.5 | 12.913 h |
| November | 23.4°C10.0°C | 10.0°C | 26 | 4.8 | 13.914 h |
| December | 26.2°C13.8°C | 13.8°C | 13 | 2.0 | 14.414 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
- Paine in MayChile · 40 kmHigh 19.8°C · Low 6.8°C · 70 mm rain
- Puente Alto in MayChile · 64 kmHigh 17.9°C · Low 5.0°C · 79 mm rain
- Peñaflor in MayChile · 64 kmHigh 19.4°C · Low 6.8°C · 69 mm rain
- San Bernardo in MayChile · 64 kmHigh 18.9°C · Low 5.8°C · 62 mm rain
- Maipú in MayChile · 73 kmHigh 18.9°C · Low 6.7°C · 62 mm rain
- Santiago in MayChile · 80 kmHigh 18.4°C · Low 6.1°C · 62 mm rain
- Peñalolén in MayChile · 80 kmHigh 17.2°C · Low 6.0°C · 79 mm rain
- Quilicura in MayChile · 89 kmHigh 18.7°C · Low 7.2°C · 81 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 Rancagua) is explained once on the Rancagua year overview and on the Sources, method and limits page.