September Weather in Belize:
Average Temperature, Rain, Sunshine & Humidity
The tables below list the typical September temperatures (in degrees Fahrenheit and Celsius) and rainfall (in total days, inches and millimetres) for cities and towns in Belize. All the temperature and precipitation numbers are monthly averages of weather measurements collected from 1991 to 2020. The number days with wet weather counts the days when rainfall amounts to over 1 millimetre (0.04 inches).
There's also information on this month's average sunshine and humidity levels in Belize City. Plus there's data here on the likelihoods of named tropical storms and hurricanes approaching Belize during September.
Temperature
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 89 | 77 | Belize City | 32 | 25 |
| 91 | 74 | Belmopan | 33 | 23 |
| 90 | 75 | Dangira | 32 | 24 |
| 92 | 74 | Orange Walk | 34 | 23 |
| 90 | 73 | Punta Gorda | 32 | 23 |
Rainfall
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 16 | Belize City | 9.0 | 230 |
| 15 | Belmopan | 8.7 | 222 |
| 16 | Dangira | 10.1 | 258 |
| 13 | Libertad | 7.4 | 188 |
| 13 | Orange Walk | 6.9 | 176 |
| 18 | Punta Gorda | 20.8 | 529 |
Sunshine — Belize City gets 207 hours of sunshine on average in September, equal to 7 sunny hours a day.
Humidity — Belize City has an average relative humidity in the afternoon during September of 76 percent.
Hurricanes and Tropical Storms
September is the stormiest month for Belize. A total of 17 tropical storms and hurricanes made landfall in the country between 1889 and 2000.
The chances are 12 percent that a named tropical storm approaches within 100 miles (165 km) of Belize during September.
There's a 2 percent probability that a hurricane will come that close this month. The likelihood of a major category 3 to 5 hurricane reaching the area is 1 percent.
References
Atlantic Oceanographic and Meteorological Laboratory. Hurricane Research Division
National Meteorological Service of Belize. Climatology (1991-2020).
NOAA National Centers for Environmental Information. WMO Climate Normals. Station Data Files. Index of /archive/arc0216/0253808/1.1/data/0-data/Region-4-WMO-Normals-9120/Belize.
World Data Center for Meteorology. Climate of the World.