Weather in Belize City in September 2025
Average weather
Average temperature in Belize City in September
The temperature in September is +30°C on average, with a range between a maximum of +31°C during the day and a minimum of +26°C at night.
The average maximum temperature goes down 20% by the end of the month, compared with the beginning of the month, from +31°C to +30°C.
Is Belize City warm or cold in September?
Belize City is typically warm in September.
Maximum temperatures go up compared to the previous month from +29°C to +29°C. The minimum temperature also goes up from +26°C to +26°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is one of the warmest months in Belize City, here is the comparison with other months:
Climate in Belize City in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +29°C | +29°C | +29°C | ||||
| Min. temperature | ||||||
| +24°C | +23°C | +21°C | ||||
| Max. temperature | ||||||
| +33°C | +34°C | +33°C | ||||
| Rainfall | ||||||
| 196 mm | 229 mm | 235 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 85% | 86% | 86% | ||||
| Air pressure | ||||||
| 1012 HPa | 1010 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 1 | 0 | 2 | ||||
| Rainy days | ||||||
| 24 | 22 | 26 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. The temperature levels stay the same in the area of +29°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 196 mm to 229 mm. Humidity rises from 85% to 86%. The average wind speed doesn’t change much during September, staying around 2 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Belize City is gradually decreasing during September, going from 3 m/s to 2 m/s over the course of the month.
Rain
How was the weather last September in Belize City?
Climate Change over Years
The climate in Belize City in September has not changed much over the last 43 years.
The average temperature was the lowest in 1986 (+27°C) and the highest in 2020 (+30°C). The driest year was 1994 with only 1051 mm of rainfall, and the wettest year was 2020 with 2703 mm.
FAQ
Is September a good time to visit Belize City?
Can you sunbathe in Belize City in September?
Is Belize City rainy in September?
Is it sunny in Belize City in September?
Monthly weather in Belize City
Source of the data
For this page, we’ve looked at the typical weather in Belize City, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.