Climate averages 1991–2020
Callao weather
in January.
A warm, very dry month: the 3rd warmest and the 9th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
January is a warm month in Callao: daytime highs average 25.6°C and nights cool to about 20.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 5.2 mm of rain on roughly 2 days, which makes January a very dry month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 45 min on an average January day.
The nearest other city in this atlas is Lima (12 km away). In January its highs average 25.6°C, about as warm as Callao, with 19 mm of rain.
Among the 24 cities listed in Peru, Callao ranks joint 14th of 24 for the warmest January highs and 1st of 24 for the driest January (rainfall, lowest first). The mean January high of those 24 cities is 25.1°C; Callao is 0.5°C warmer than that mean.
From January to February, average highs rise by 1.0°C to 26.6°C, and monthly rainfall rises from 5.2 mm to 7.8 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- Lima in JanuaryPeru · 12 kmHigh 25.6°C · Low 20.1°C · 19 mm rain
- Santa Anita - Los Ficus in JanuaryPeru · 18 kmHigh 23.5°C · Low 18.7°C · 19 mm rain
- Chosica in JanuaryPeru · 48 kmHigh 24.2°C · Low 18.8°C · 64 mm rain
- Chincha Alta in JanuaryPeru · 186 kmHigh 25.8°C · Low 20.3°C · 7.0 mm rain
- Huancayo in JanuaryPeru · 209 kmHigh 13.8°C · Low 6.1°C · 243 mm rain
- Huánuco (approximate) in JanuaryPeru · 255 kmHigh 23.3°C · Low 16.8°C · 161 mm rain
- Ica in JanuaryPeru · 271 kmHigh 29.1°C · Low 20.3°C · 24 mm rain
- Chimbote in JanuaryPeru · 367 kmHigh 25.4°C · Low 20.2°C · 6.2 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.