Climate averages 1991–2020
Callao weather
in April.
A warm, very dry month: the 4th warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
April is a warm month in Callao: daytime highs average 24.7°C and nights cool to about 19.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 1.6 mm of rain on fewer than one day, which makes April a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 50 min on an average April day.
The nearest other city in this atlas is Lima (12 km away). In April its highs average 24.9°C, about as warm as Callao, with 7.2 mm of rain.
Among the 24 cities listed in Peru, Callao ranks 14th of 24 for the warmest April highs and joint 1st of 24 for the driest April (rainfall, lowest first). The mean April high of those 24 cities is 24.7°C; Callao is level with that mean.
From April to May, average highs fall by 2.5°C to 22.3°C, and monthly rainfall rises from 1.6 mm to 2.3 mm.
The annual picture
April 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, selected | 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
April in nearby cities
- Lima in AprilPeru · 12 kmHigh 24.9°C · Low 19.4°C · 7.2 mm rain
- Santa Anita - Los Ficus in AprilPeru · 18 kmHigh 22.7°C · Low 17.9°C · 7.2 mm rain
- Chosica in AprilPeru · 48 kmHigh 24.2°C · Low 18.8°C · 26 mm rain
- Chincha Alta in AprilPeru · 186 kmHigh 25.7°C · Low 20.0°C · 1.6 mm rain
- Huancayo in AprilPeru · 209 kmHigh 13.6°C · Low 5.6°C · 113 mm rain
- Huánuco (approximate) in AprilPeru · 255 kmHigh 23.2°C · Low 16.2°C · 81 mm rain
- Ica in AprilPeru · 271 kmHigh 28.9°C · Low 19.8°C · 3.5 mm rain
- Chimbote in AprilPeru · 367 kmHigh 24.6°C · Low 19.6°C · 4.0 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.