Climate averages 1991–2020
Juliaca weather
in December.
A mild, wet month: the 5th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Juliaca: daytime highs average 15.1°C and nights cool to about 4.8°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 140 mm of rain on roughly 22 days, which makes December a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 02 min on an average December day.
The nearest other city in this atlas is Puno (40 km away). In December its highs average 15.2°C, about as warm as Juliaca, with 156 mm of rain.
Among the 24 cities listed in Peru, Juliaca ranks 23rd of 24 for the warmest December highs and 16th of 24 for the driest December (rainfall, lowest first). The mean December high of those 24 cities is 24.6°C; Juliaca is 9.5°C cooler than that mean.
From December to January, average highs fall by 1.3°C to 13.8°C, and monthly rainfall rises from 140 mm to 193 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
Juliaca climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 13.8°C5.0°C | 5.0°C | 193 | 26.3 | 12.913 h |
| February | 13.8°C5.0°C | 5.0°C | 182 | 24.0 | 12.613 h |
| March | 13.7°C4.6°C | 4.6°C | 150 | 25.1 | 12.212 h |
| April | 13.7°C2.7°C | 2.7°C | 75 | 15.7 | 11.812 h |
| May | 14.2°C-0.5°C | -0.5°C | 22 | 5.4 | 11.411 h |
| June | 14.3°C-2.0°C | -2.0°C | 7.0 | 1.7 | 11.211 h |
| July | 14.5°C-2.0°C | -2.0°C | 7.0 | 2.0 | 11.311 h |
| August | 15.4°C-0.8°C | -0.8°C | 18 | 4.8 | 11.612 h |
| September | 15.9°C1.1°C | 1.1°C | 46 | 10.3 | 12.012 h |
| October | 16.0°C2.8°C | 2.8°C | 77 | 14.2 | 12.412 h |
| November | 16.5°C3.9°C | 3.9°C | 76 | 14.1 | 12.813 h |
| December, selected | 15.1°C4.8°C | 4.8°C | 140 | 21.7 | 13.013 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
- Puno in DecemberPeru · 40 kmHigh 15.2°C · Low 5.8°C · 156 mm rain
- Viacha in DecemberBolivia · 234 kmHigh 14.8°C · Low 4.2°C · 110 mm rain
- La Paz in DecemberBolivia · 239 kmHigh 14.8°C · Low 5.7°C · 112 mm rain
- Tacna in DecemberPeru · 280 kmHigh 25.3°C · Low 16.3°C · 5.6 mm rain
- Cusco in DecemberPeru · 295 kmHigh 15.9°C · Low 8.4°C · 196 mm rain
- Arica in DecemberChile · 331 kmHigh 24.7°C · Low 17.2°C · 4.7 mm rain
- Puerto Maldonado in DecemberPeru · 339 kmHigh 29.4°C · Low 23.0°C · 330 mm rain
- Abancay in DecemberPeru · 361 kmHigh 20.4°C · Low 12.4°C · 178 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 Juliaca) is explained once on the Juliaca year overview and on the Sources, method and limits page.