Climate averages 1991–2020
Chosica weather
in September.
A warm, very dry month: the joint 7th warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Chosica: daytime highs average 23.9°C and nights cool to about 17.7°C. By daytime temperature it is the joint 7th warmest of the 12 months.
Expect about 4.0 mm of rain on roughly 1 day, which makes September a very dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 02 min on an average September day.
The nearest other city in this atlas is Santa Anita - Los Ficus (31 km away). In September its highs average 19.0°C, 4.9°C cooler than Chosica, with 1.6 mm of rain.
Among the 24 cities listed in Peru, Chosica ranks 10th of 24 for the warmest September highs and 13th of 24 for the driest September (rainfall, lowest first). The mean September high of those 24 cities is 23.3°C; Chosica is 0.6°C warmer than that mean.
From September to October, average highs fall by 0.1°C to 23.8°C, and monthly rainfall rises from 4.0 mm to 8.6 mm.
The annual picture
September 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
Chosica climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.2°C18.8°C | 18.8°C | 64 | 13.9 | 12.713 h |
| February | 24.1°C19.3°C | 19.3°C | 104 | 19.4 | 12.512 h |
| March | 24.4°C19.5°C | 19.5°C | 89 | 18.4 | 12.212 h |
| April | 24.2°C18.8°C | 18.8°C | 26 | 6.4 | 11.812 h |
| May | 24.1°C18.1°C | 18.1°C | 4.4 | 1.3 | 11.612 h |
| June | 23.7°C17.8°C | 17.8°C | 0.4 | 0.1 | 11.411 h |
| July | 23.6°C17.6°C | 17.6°C | 0.5 | 0.2 | 11.511 h |
| August | 23.9°C17.7°C | 17.7°C | 0.6 | 0.2 | 11.712 h |
| September, selected | 23.9°C17.7°C | 17.7°C | 4.0 | 1.3 | 12.012 h |
| October | 23.8°C17.5°C | 17.5°C | 8.6 | 2.7 | 12.412 h |
| November | 23.9°C17.5°C | 17.5°C | 8.5 | 2.0 | 12.713 h |
| December | 24.1°C18.2°C | 18.2°C | 20 | 6.2 | 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
September in nearby cities
- Santa Anita - Los Ficus in SeptemberPeru · 31 kmHigh 19.0°C · Low 14.2°C · 1.6 mm rain
- Lima in SeptemberPeru · 36 kmHigh 21.2°C · Low 15.6°C · 1.6 mm rain
- Callao in SeptemberPeru · 48 kmHigh 20.1°C · Low 15.3°C · 3.7 mm rain
- Huancayo in SeptemberPeru · 164 kmHigh 13.8°C · Low 4.3°C · 90 mm rain
- Chincha Alta in SeptemberPeru · 175 kmHigh 22.9°C · Low 16.0°C · 0.1 mm rain
- Huánuco (approximate) in SeptemberPeru · 230 kmHigh 23.6°C · Low 15.0°C · 35 mm rain
- Ica in SeptemberPeru · 260 kmHigh 26.6°C · Low 16.1°C · 0.1 mm rain
- Chimbote in SeptemberPeru · 380 kmHigh 20.0°C · Low 15.3°C · 1.4 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 Chosica) is explained once on the Chosica year overview and on the Sources, method and limits page.