Climate averages 1991–2020
Panama City weather
in September.
A hot, very wet month: the 10th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Panama City: daytime highs average 28.5°C and nights cool to about 24.1°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 257 mm of rain on roughly 29 days, which makes September a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 11 min on an average September day.
The nearest other city in this atlas is San Miguelito (8 km away). In September its highs average 29.0°C, about as warm as Panama City, with 257 mm of rain.
Among the 6 cities listed in Panama, Panama City ranks joint 2nd of 6 for the warmest September highs and joint 1st of 6 for the driest September (rainfall, lowest first). The mean September high of those 6 cities is 28.3°C; Panama City is 0.2°C warmer than that mean.
From September to October, average highs fall by 0.3°C to 28.3°C, and monthly rainfall falls from 257 mm to 251 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
Panama City climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.1°C24.2°C | 24.2°C | 17 | 4.7 | 11.712 h |
| February | 29.9°C24.2°C | 24.2°C | 9.5 | 2.5 | 11.812 h |
| March | 30.5°C24.4°C | 24.4°C | 12 | 3.1 | 12.112 h |
| April | 30.3°C24.8°C | 24.8°C | 81 | 13.6 | 12.312 h |
| May | 29.1°C24.6°C | 24.6°C | 221 | 28.2 | 12.513 h |
| June | 28.8°C24.4°C | 24.4°C | 251 | 29.4 | 12.613 h |
| July | 28.7°C24.3°C | 24.3°C | 269 | 30.1 | 12.613 h |
| August | 28.7°C24.3°C | 24.3°C | 267 | 30.4 | 12.412 h |
| September, selected | 28.5°C24.1°C | 24.1°C | 257 | 29.4 | 12.212 h |
| October | 28.3°C23.9°C | 23.9°C | 251 | 30.0 | 11.912 h |
| November | 28.1°C23.9°C | 23.9°C | 238 | 26.9 | 11.712 h |
| December | 28.6°C24.3°C | 24.3°C | 101 | 16.8 | 11.612 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
- San Miguelito in SeptemberPanama · 8 kmHigh 29.0°C · Low 23.7°C · 257 mm rain
- Juan Díaz in SeptemberPanama · 10 kmHigh 28.5°C · Low 23.8°C · 257 mm rain
- Arraiján in SeptemberPanama · 15 kmHigh 27.9°C · Low 23.3°C · 269 mm rain
- Colón in SeptemberPanama · 58 kmHigh 28.3°C · Low 24.2°C · 300 mm rain
- David in SeptemberPanama · 326 kmHigh 27.9°C · Low 21.8°C · 460 mm rain
- Apartadó in SeptemberColombia · 341 kmHigh 29.4°C · Low 23.8°C · 199 mm rain
- Chigorodó in SeptemberColombia · 345 kmHigh 29.1°C · Low 22.6°C · 395 mm rain
- Montería in SeptemberColombia · 401 kmHigh 30.1°C · Low 23.4°C · 243 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 Panama City) is explained once on the Panama City year overview and on the Sources, method and limits page.
San Miguelito and Juan Díaz lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.