Climate averages 1991–2020
Callao weather
in October.
A mild, very dry month: the 8th warmest and the 5th 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 Callao: daytime highs average 20.9°C and nights cool to about 15.8°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 2.8 mm of rain on fewer than one day, which makes October a very dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 22 min on an average October day.
The nearest other city in this atlas is Lima (12 km away). In October its highs average 21.8°C, 1.0°C warmer than Callao, with 2.5 mm of rain.
Among the 24 cities listed in Peru, Callao ranks 18th of 24 for the warmest October highs and joint 9th of 24 for the driest October (rainfall, lowest first). The mean October high of those 24 cities is 23.6°C; Callao is 2.8°C cooler than that mean.
From October to November, average highs rise by 1.1°C to 22.0°C, and monthly rainfall falls from 2.8 mm to 2.2 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
Callao climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.6°C20.3°C | 20.3°C | 5.2 | 1.5 | 12.713 h |
| February | 26.6°C21.4°C | 21.4°C | 7.8 | 2.0 | 12.512 h |
| March | 26.5°C21.2°C | 21.2°C | 5.9 | 1.7 | 12.212 h |
| April | 24.7°C19.5°C | 19.5°C | 1.6 | 0.2 | 11.812 h |
| May | 22.3°C17.6°C | 17.6°C | 2.3 | 0.2 | 11.612 h |
| June | 20.5°C16.2°C | 16.2°C | 4.9 | 1.1 | 11.411 h |
| July | 19.6°C15.4°C | 15.4°C | 5.3 | 1.2 | 11.511 h |
| August | 19.6°C15.0°C | 15.0°C | 4.9 | 1.2 | 11.712 h |
| September | 20.1°C15.3°C | 15.3°C | 3.7 | 0.5 | 12.012 h |
| October, selected | 20.9°C15.8°C | 15.8°C | 2.8 | 0.3 | 12.412 h |
| November | 22.0°C16.8°C | 16.8°C | 2.2 | 0.1 | 12.713 h |
| December | 23.7°C18.5°C | 18.5°C | 2.7 | 0.6 | 12.813 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
- Lima in OctoberPeru · 12 kmHigh 21.8°C · Low 16.1°C · 2.5 mm rain
- Santa Anita - Los Ficus in OctoberPeru · 18 kmHigh 19.6°C · Low 14.7°C · 2.5 mm rain
- Chosica in OctoberPeru · 48 kmHigh 23.8°C · Low 17.5°C · 8.6 mm rain
- Chincha Alta in OctoberPeru · 186 kmHigh 23.4°C · Low 16.4°C · 0.2 mm rain
- Huancayo in OctoberPeru · 209 kmHigh 14.1°C · Low 5.2°C · 147 mm rain
- Huánuco (approximate) in OctoberPeru · 255 kmHigh 23.9°C · Low 16.0°C · 69 mm rain
- Ica in OctoberPeru · 271 kmHigh 27.4°C · Low 16.7°C · 1.2 mm rain
- Chimbote in OctoberPeru · 367 kmHigh 20.5°C · Low 15.6°C · 1.9 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 Callao) is explained once on the Callao year overview and on the Sources, method and limits page.