Climate averages 1991–2020
Tacna weather
in October.
A mild, very dry month: the 7th warmest and one of the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Tacna: daytime highs average 21.9°C and nights cool to about 13.6°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 1.1 mm of rain on fewer than one day, which makes October a very dry month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 12 h 30 min on an average October day.
The nearest other city in this atlas is Arica (51 km away). In October its highs average 19.7°C, 2.2°C cooler than Tacna, with 8.9 mm of rain.
Among the 24 cities listed in Peru, Tacna ranks 15th of 24 for the warmest October highs and 2nd of 24 for the driest October (rainfall, lowest first). The mean October high of those 24 cities is 23.6°C; Tacna is 1.7°C cooler than that mean.
From October to November, average highs rise by 1.8°C to 23.7°C, and monthly rainfall stays at 1.1 mm.
The annual picture
October 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
Tacna climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.4°C17.9°C | 17.9°C | 23 | 6.5 | 13.113 h |
| February | 26.9°C18.5°C | 18.5°C | 23 | 6.9 | 12.713 h |
| March | 26.5°C18.0°C | 18.0°C | 14 | 4.1 | 12.212 h |
| April | 24.3°C16.3°C | 16.3°C | 1.9 | 0.4 | 11.712 h |
| May | 21.6°C15.0°C | 15.0°C | 4.1 | 0.4 | 11.311 h |
| June | 19.5°C13.8°C | 13.8°C | 4.5 | 0.4 | 11.111 h |
| July | 18.9°C13.0°C | 13.0°C | 3.9 | 0.5 | 11.211 h |
| August | 19.4°C12.9°C | 12.9°C | 3.6 | 0.5 | 11.512 h |
| September | 20.5°C13.1°C | 13.1°C | 2.4 | 0.2 | 12.012 h |
| October, selected | 21.9°C13.6°C | 13.6°C | 1.1 | 0.0 | 12.512 h |
| November | 23.7°C14.6°C | 14.6°C | 1.1 | 0.2 | 12.913 h |
| December | 25.3°C16.3°C | 16.3°C | 5.6 | 1.4 | 13.213 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
October in nearby cities
- Arica in OctoberChile · 51 kmHigh 19.7°C · Low 13.6°C · 8.9 mm rain
- Puno in OctoberPeru · 243 kmHigh 16.0°C · Low 3.9°C · 81 mm rain
- Iquique (approximate) in OctoberChile · 245 kmHigh 23.6°C · Low 15.5°C · 3.0 mm rain
- Alto Hospicio in OctoberChile · 251 kmHigh 20.9°C · Low 11.9°C · 0.1 mm rain
- Viacha in OctoberBolivia · 257 kmHigh 15.7°C · Low 2.4°C · 53 mm rain
- La Paz in OctoberBolivia · 280 kmHigh 15.0°C · Low 4.0°C · 55 mm rain
- Juliaca in OctoberPeru · 280 kmHigh 16.0°C · Low 2.8°C · 77 mm rain
- Oruro in OctoberBolivia · 334 kmHigh 16.9°C · Low 2.2°C · 35 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 Tacna) is explained once on the Tacna year overview and on the Sources, method and limits page.