Climate averages 1991–2020
Chinandega weather
in September.
A hot, very wet month: the 11th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Chinandega: daytime highs average 29.9°C and nights cool to about 24.4°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 384 mm of rain on roughly 27 days, which makes September a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 12 min on an average September day.
The nearest other city in this atlas is León, Nicaragua (35 km away). In September its highs average 29.7°C, about as warm as Chinandega, with 370 mm of rain.
Among the 7 cities listed in Nicaragua, Chinandega ranks 2nd of 7 for the warmest September highs and 7th of 7 for the driest September (rainfall, lowest first). The mean September high of those 7 cities is 29.1°C; Chinandega is 0.8°C warmer than that mean.
From September to October, average highs fall by 0.6°C to 29.3°C, and monthly rainfall falls from 384 mm to 373 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
Chinandega climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.4°C24.2°C | 24.2°C | 1.9 | 0.5 | 11.511 h |
| February | 33.2°C24.6°C | 24.6°C | 2.1 | 0.6 | 11.712 h |
| March | 33.8°C25.2°C | 25.2°C | 5.3 | 1.6 | 12.112 h |
| April | 33.8°C26.0°C | 26.0°C | 36 | 7.5 | 12.412 h |
| May | 31.8°C25.5°C | 25.5°C | 266 | 21.4 | 12.713 h |
| June | 30.8°C25.0°C | 25.0°C | 326 | 23.0 | 12.913 h |
| July | 31.9°C25.2°C | 25.2°C | 167 | 17.2 | 12.813 h |
| August | 31.5°C25.0°C | 25.0°C | 249 | 22.5 | 12.513 h |
| September, selected | 29.9°C24.4°C | 24.4°C | 384 | 26.8 | 12.212 h |
| October | 29.3°C24.1°C | 24.1°C | 373 | 24.9 | 11.912 h |
| November | 30.3°C24.0°C | 24.0°C | 80 | 9.1 | 11.612 h |
| December | 31.6°C23.9°C | 23.9°C | 6.3 | 1.7 | 11.411 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
- León, Nicaragua in SeptemberNicaragua · 35 kmHigh 29.7°C · Low 24.1°C · 370 mm rain
- Ciudad Choluteca in SeptemberHonduras · 75 kmHigh 31.3°C · Low 23.5°C · 425 mm rain
- Estelí in SeptemberNicaragua · 99 kmHigh 27.3°C · Low 20.1°C · 227 mm rain
- Managua in SeptemberNicaragua · 110 kmHigh 30.9°C · Low 24.2°C · 168 mm rain
- Masaya in SeptemberNicaragua · 134 kmHigh 28.9°C · Low 23.3°C · 196 mm rain
- Matagalpa in SeptemberNicaragua · 136 kmHigh 27.5°C · Low 20.6°C · 167 mm rain
- San Miguel, El Salvador in SeptemberEl Salvador · 148 kmHigh 30.9°C · Low 23.6°C · 343 mm rain
- Granada, Nicaragua in SeptemberNicaragua · 150 kmHigh 29.4°C · Low 24.5°C · 196 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 Chinandega) is explained once on the Chinandega year overview and on the Sources, method and limits page.