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Skip crowded spring break resorts. Compare March weather and travel style in Puerto Escondido, San Juan del Sur, Roatán, Caye Caulker and Curaçao.
Belize City Weather in September
Belize City in September averages 31°C (88°F) during the day and 26°C (79°F) at night. September is part of the rainy season, so frequent rainfall is typical.
Rainfall in Belize City in September
Belize City is in the rainy season in September, with rain on around 18 days and an average of 237 mm (9.3 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.
Temperature in Belize City in September
In September, Belize City gets very high temperatures, with highs of 31°C (88°F). Nights cool to around 26°C (79°F). It's usually most comfortable outside during the morning and later in the day. At 26°C (79°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help. Average temperatures can be deceiving; some days will be hotter. Wear breathable fabrics and drink plenty of water to stay cool.
Sunshine in Belize City in September
The area enjoys a moderate level of sunlight, with around 180 hours. It's a good balance between sunny and rainy days.September in Belize City has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Belize City Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
60%
Precipitation
237 mm (9.3 in)
Rainy days
18 days
Humidity
84%
Sunshine
180 hours
Percentage Sunshine
Belize City Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Belize City - and find the best time to visit.
Daily Historical Temperatures
42-year average (1976-2025)
Based on our historical records, temperatures in Belize City typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Daily Historical Precipitation
42-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Belize City in September
Browse day-by-day weather records for Belize City spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Belize City historical weather extremes in September
Our historical data for Belize City spans 1993 to 2026, revealing these weather extremes.
- On September 14, 2004, temperatures climbed to 35°C (95°F), marking the warmest September day on record.
- Belize City experienced its chilliest September day on September 17, 1993, reaching only 25°C (77°F).
- Belize City registered its coldest September night on September 1, 1997, with temperatures dropping to 22°C (72°F).
Best Places in Belize in September
Find out more about the weather in Belize and which places have the best travel conditions in this month. See all of Belize in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Belize City in September
Warm but pleasant conditions in Belize City in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Belize City in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Belize City 3-Day Forecast
More climate data for Belize City
Temperature Rainfall Sunshine Humidity
See the full Belize City climate overview or explore weather in Belize.
Popular in September
Where to go in September - average daytime high across popular destinations.
San Ignacio
33°C (91°F) Dangriga31°C (88°F) Belize City31°C (88°F) Hopkins31°C (88°F) Maya Beach31°C (88°F) Caye Caulker30°C (86°F) Placencia Village31°C (88°F) San Pedro30°C (86°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Best Spring Break Destinations for Great Weather and Fewer Crowds
Cockscomb basin wildlife sanctuary
The Cockscomb Basin Wildlife Sanctuary is located in the south of Belize and is said to be the best place on earth to encounter a jaguar. Something you migh want to add to your bucket list.
Dive and feel like Robinson Crusoe at Glover’s Reef
Belize has an amazing number of beautiful small islands. Many of these islands are unaffordable for the average backpacker. Glovers Reef is an exception to this.
River Tube in Belize
The best time to visit Belize and to River Tube is from December to mid-April, this is the dry season. If you like to avoid the crowds we recommend visiting May and early June.