Climate averages 1991–2020
Valparaíso weather
in December.
A mild, very dry month: the 4th warmest and the 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Valparaíso: daytime highs average 19.9°C and nights cool to about 14.9°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 2.8 mm of rain on fewer than one day, which makes December a very dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 17 min on an average December day.
The nearest other city in this atlas is Viña del Mar (7 km away). In December its highs average 22.4°C, 2.5°C warmer than Valparaíso, with 2.5 mm of rain.
Among the 40 cities listed in Chile, Valparaíso ranks 36th of 40 for the warmest December highs and 11th of 40 for the driest December (rainfall, lowest first). The mean December high of those 40 cities is 23.8°C; Valparaíso is 4.0°C cooler than that mean.
From December to January, average highs rise by 1.2°C to 21.1°C, and monthly rainfall falls from 2.8 mm to under 1 mm.
The annual picture
December 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
Valparaíso climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 21.1°C16.2°C | 16.2°C | 0.3 | 0.1 | 14.114 h |
| February | 21.1°C16.2°C | 16.2°C | 1.2 | 0.2 | 13.313 h |
| March | 20.4°C15.4°C | 15.4°C | 2.3 | 0.6 | 12.312 h |
| April | 18.5°C13.5°C | 13.5°C | 16 | 1.9 | 11.311 h |
| May | 16.7°C11.8°C | 11.8°C | 61 | 4.4 | 10.410 h |
| June | 15.3°C10.4°C | 10.4°C | 121 | 6.9 | 10.010 h |
| July | 14.5°C9.5°C | 9.5°C | 67 | 5.6 | 10.210 h |
| August | 14.9°C9.8°C | 9.8°C | 57 | 4.7 | 10.911 h |
| September | 15.6°C10.8°C | 10.8°C | 27 | 2.9 | 11.912 h |
| October | 16.8°C11.9°C | 11.9°C | 13 | 1.6 | 12.913 h |
| November | 18.4°C13.4°C | 13.4°C | 2.6 | 0.4 | 13.814 h |
| December, selected | 19.9°C14.9°C | 14.9°C | 2.8 | 0.3 | 14.314 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
December in nearby cities
- Viña del Mar in DecemberChile · 7 kmHigh 22.4°C · Low 14.1°C · 2.5 mm rain
- Quilpué in DecemberChile · 17 kmHigh 22.8°C · Low 13.5°C · 2.5 mm rain
- San Antonio, Chile in DecemberChile · 62 kmHigh 20.4°C · Low 13.2°C · 2.9 mm rain
- Lampa in DecemberChile · 76 kmHigh 28.5°C · Low 15.3°C · 6.0 mm rain
- Colina in DecemberChile · 91 kmHigh 27.9°C · Low 16.3°C · 13 mm rain
- Quilicura in DecemberChile · 93 kmHigh 26.7°C · Low 14.8°C · 13 mm rain
- Peñaflor in DecemberChile · 94 kmHigh 28.0°C · Low 14.0°C · 4.8 mm rain
- Maipú in DecemberChile · 96 kmHigh 27.3°C · Low 14.1°C · 6.3 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 Valparaíso) is explained once on the Valparaíso year overview and on the Sources, method and limits page.