Climate averages 1991–2020
Viacha weather
in July.
A cool, very dry month: the coolest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a cool month in Viacha: daytime highs average 13.5°C and nights cool to about -1.6°C. By daytime temperature it is the coolest month of the year.
Expect about 10 mm of rain on roughly 3 days, which makes July a very dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 14 min on an average July day.
The nearest other city in this atlas is La Paz (23 km away). In July its highs average 13.1°C, about as warm as Viacha, with 14 mm of rain.
Among the 14 cities listed in Bolivia, Viacha ranks 11th of 14 for the warmest July highs and 4th of 14 for the driest July (rainfall, lowest first). The mean July high of those 14 cities is 19.9°C; Viacha is 6.4°C cooler than that mean.
From July to August, average highs rise by 1.0°C to 14.5°C, and monthly rainfall rises from 10 mm to 16 mm.
The annual picture
July 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
Viacha climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 13.8°C4.5°C | 4.5°C | 143 | 24.8 | 13.013 h |
| February | 13.8°C4.2°C | 4.2°C | 124 | 22.7 | 12.613 h |
| March | 13.7°C3.7°C | 3.7°C | 96 | 22.4 | 12.212 h |
| April | 13.8°C2.2°C | 2.2°C | 46 | 13.5 | 11.712 h |
| May | 14.1°C0.2°C | 0.2°C | 14 | 4.7 | 11.311 h |
| June | 13.7°C-1.2°C | -1.2°C | 8.2 | 2.5 | 11.211 h |
| July, selected | 13.5°C-1.6°C | -1.6°C | 10 | 3.0 | 11.211 h |
| August | 14.5°C-0.7°C | -0.7°C | 16 | 4.5 | 11.612 h |
| September | 15.2°C0.7°C | 0.7°C | 32 | 9.6 | 12.012 h |
| October | 15.7°C2.4°C | 2.4°C | 53 | 13.2 | 12.512 h |
| November | 16.1°C3.4°C | 3.4°C | 58 | 13.9 | 12.913 h |
| December | 14.8°C4.2°C | 4.2°C | 110 | 20.8 | 13.113 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
July in nearby cities
- La Paz in JulyBolivia · 23 kmHigh 13.1°C · Low 0.5°C · 14 mm rain
- Oruro in JulyBolivia · 195 kmHigh 12.8°C · Low -2.4°C · 8.1 mm rain
- Puno in JulyPeru · 205 kmHigh 14.7°C · Low -0.8°C · 8.7 mm rain
- Quillacollo in JulyBolivia · 230 kmHigh 21.1°C · Low 7.2°C · 11 mm rain
- Juliaca in JulyPeru · 234 kmHigh 14.5°C · Low -2.0°C · 7.0 mm rain
- Cochabamba in JulyBolivia · 242 kmHigh 20.5°C · Low 7.3°C · 11 mm rain
- Sacaba in JulyBolivia · 254 kmHigh 18.9°C · Low 6.9°C · 32 mm rain
- Tacna in JulyPeru · 257 kmHigh 18.9°C · Low 13.0°C · 3.9 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 Viacha) is explained once on the Viacha year overview and on the Sources, method and limits page.