Weather in Belize in September

September is characterized by warm temperatures and relatively high rainfall throughout Belize. Most rain occurs during the night or early morning as the warm breezes off the water meet the cooling land, creating a concentration of rainfall over the mountains. For most of the day however, the sun shines brightly over the beautiful beaches and jungles of Belize.

Typical Weather in September

During September the temperatures in Belize typically vary between a daily high of about 86.0 degrees and a daily low of approximately 77.0 degrees


Belize in September: Key Facts
Monthly Averages
High Low Rainfall
No. of Days
with Rain
86.0° F 77.0° F 9.5 N.A.

During the early morning hours of an average September day in Belize, you can expect the temperature will be in the vicinity of 76.4 degrees. The temperature will rise over the course of the typical September day, reaching somewhere around 85.5 degrees by early afternoon. By early evening, temperatures in Belize generally decline to around 81.7 degrees. Overall, temperatures in Belize during September average around 81.2 degrees.


September Temperatures in Belize by Time of Day
Early Morning Late Morning Early Afternoon Late Afternoon Early Evening Overall
76.4° F 82.3° F 85.5° F 85.1° F 81.7° F 81.2° F



Rain is least likely to occur in Belize during September around 6:00 PM , and it is most likely to occur around 6:00 AM . As shown below, if a thunderstorm occurs in September, it is most likely to occur around 6:00 AM .


September Rainfall in Belize by Time of Day
  Percent Frequencies of Hourly Observations
Hour Rain
12:00 AM (midnight) 20.3 % 8.6 %
3:00 AM 19.6 % 7 %
6:00 AM 20.6 % 11.3 %
9:00 AM 12 % 6.4 %
12:00 PM (noon) 9.2 % 4.6 %
3:00 PM 9 % 4.8 %
6:00 PM 4.8 % 1.5 %
9:00 PM 6.9 % 2.5 %
ALL 12.2 % 5.7 %


Help us improve! We welcome your corrections and suggestions.