Climate averages 1991–2020
Arica weather
in October.
A mild, very dry month: the 8th warmest and the 6th 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 Arica: daytime highs average 19.7°C and nights cool to about 13.6°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 8.9 mm of rain on roughly 2 days, which makes October a very dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 30 min on an average October day.
The nearest other city in this atlas is Tacna (51 km away). In October its highs average 21.9°C, 2.2°C warmer than Arica, with 1.1 mm of rain.
Among the 40 cities listed in Chile, Arica ranks joint 19th of 40 for the warmest October highs and 9th of 40 for the driest October (rainfall, lowest first). The mean October high of those 40 cities is 19.1°C; Arica is 0.6°C warmer than that mean.
From October to November, average highs rise by 2.5°C to 22.3°C, and monthly rainfall falls from 8.9 mm to 4.2 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
Arica climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.6°C19.5°C | 19.5°C | 9.5 | 2.4 | 13.113 h |
| February | 27.3°C20.2°C | 20.2°C | 7.3 | 2.0 | 12.713 h |
| March | 26.6°C19.2°C | 19.2°C | 3.8 | 0.7 | 12.212 h |
| April | 23.6°C16.7°C | 16.7°C | 6.9 | 1.7 | 11.712 h |
| May | 20.1°C14.9°C | 14.9°C | 24 | 9.3 | 11.311 h |
| June | 18.0°C13.5°C | 13.5°C | 30 | 12.5 | 11.011 h |
| July | 17.1°C12.5°C | 12.5°C | 29 | 10.5 | 11.111 h |
| August | 17.2°C12.3°C | 12.3°C | 20 | 6.9 | 11.511 h |
| September | 18.1°C12.8°C | 12.8°C | 14 | 4.5 | 12.012 h |
| October, selected | 19.7°C13.6°C | 13.6°C | 8.9 | 1.9 | 12.513 h |
| November | 22.3°C15.0°C | 15.0°C | 4.2 | 0.3 | 13.013 h |
| December | 24.7°C17.2°C | 17.2°C | 4.7 | 0.8 | 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
- Tacna in OctoberPeru · 51 kmHigh 21.9°C · Low 13.6°C · 1.1 mm rain
- Iquique (approximate) in OctoberChile · 194 kmHigh 23.6°C · Low 15.5°C · 3.0 mm rain
- Alto Hospicio in OctoberChile · 200 kmHigh 20.9°C · Low 11.9°C · 0.1 mm rain
- Viacha in OctoberBolivia · 294 kmHigh 15.7°C · Low 2.4°C · 53 mm rain
- Puno in OctoberPeru · 295 kmHigh 16.0°C · Low 3.9°C · 81 mm rain
- La Paz in OctoberBolivia · 317 kmHigh 15.0°C · Low 4.0°C · 55 mm rain
- Juliaca in OctoberPeru · 331 kmHigh 16.0°C · Low 2.8°C · 77 mm rain
- Oruro in OctoberBolivia · 343 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 Arica) is explained once on the Arica year overview and on the Sources, method and limits page.