Belize City weather in September
September in Belize City: sweltering, soaked, with clean air — a gamble, with 27 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#10 of 12 months in Belize City · #1207 of 1413 destinations to visit in September · comfort 55/100 (tier D)
- Days
- 32°C
- Nights
- 25°C
- Wet days
- 27
- Sun
- 10.5 h
- Humidity
- 86%
- Daylight
- 12 h

Traveller notes on Belize City in September
Notes from nearby Caye Caulker (33 km away)
Belize City doesn't have its own notes for September yet — these are about Caye Caulker, close enough to share the season.
Forum posters are direct that September sits within Belize's wet and hurricane season, with one of the higher rainfall totals of the year, though actual year-to-year experience varies. Posters consistently describe rain here as coming mostly overnight or as a brief afternoon shower, with days staying sunny and clear rather than washed out - one detailed week-long September stay reported rain only at night or early morning, with nighttime thunderstorms over the ocean described as a genuine visual highlight rather than a nuisance. Posters are consistent that despite hurricane-season nerves, September is actually one of the more beautiful times of year here, with real crowd relief given how much quieter the island runs, though posters note some businesses do close for the season.
Other months in Belize City
Forum posters cite typical August daily highs around 31C (88-90F) with overnight lows near 24C, and describe rain this time of year as most often falling overnight, leaving days sunny and clear more often than not - it seldom rains every day or all day unless a tropical low pressure system moves through. Posters specifically flag mid-August as home to Belize's well-known 'little dry season,' roughly a two-week stretch of notably reduced rainfall within the broader wet season. Posters are consistent that hurricane risk in August itself is low, citing historical records showing only a handful of hurricanes have affected Belize before September in the past century. Posters generally rate August as hot, humid and typically sunny by day for Belize City, with rain concentrated overnight and hurricane risk still modest this early in the season.
Forum posters describe February as more dry than wet, with rain, when it happens, typically falling overnight and leaving fine, sunny days behind - a daily maximum around 28C and overnight lows near 20C are typical, with most days seeing clear, sunny skies. Posters describe humidity as still noticeable, especially right after arrival, but consider February's lower temperatures the key factor that makes that humidity feel bearable rather than oppressive. Posters flag real week-to-week variability from passing cold fronts, which can drop temperatures by a few degrees, though rainfall stays consistently lower than January and isn't something to plan around. Posters generally name February through April as Belize's driest stretch of the year, with February specifically rated as an excellent time to visit.
Add your own note from Belize City's card on the map.
Belize City climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Belize City in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySeptember Celebrations, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Belize City's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherBelize City's weather peaks January–March, best around February.
September coincides with Hurricane season.
Best weatherFair weatherToughest weather
What's on in Belize City in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Hurricane season
1 Jun – 30 NovHattie flattened the city in 1961 and the government moved the capital inland to Belmopan because of it. The old town sits barely above the sea either side of Haulover Creek; risk peaks from August. Source ↗
- Opening
Lobster season opens
15 Jun – 14 FebForaging seasonThe spiny lobster fishery opens on 15 June and shuts again on 15 February. Outside those dates anything on a menu is frozen or it should not be there; the opening fortnight is when it is cheapest and everywhere. Source ↗
- Festival
September Celebrations
1–21 SepNational holidayCrowdedClosuresBelize City runs its two national days three weeks apart: the Citizens Parade on the tenth for the Battle of St George's Caye, the Uniform Parade on the twenty-first for independence, with carnival and jump-up filling the gap. Source ↗
Nearby, and something's on
Within 300 km of Belize City — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Belize City?
Belize City in September — FAQ
- Is September a good time to visit Belize City?
- September in Belize City: sweltering, soaked, with clean air — a gamble, with 27 rainy days. It ranks #10 of 12 months for Belize City on SeasonMap's comfort score (55/100).
- What is the weather like in Belize City in September?
- In September, Belize City averages a daily high of 32.2°C and a low of 25.1°C, with about 207.2 mm of rain over roughly 26.5 rainy days.
- What is the air quality in Belize City in September?
- Belize City has a mean US Air Quality Index of about 31 in September.
Within 300 km: Caye Caulker's Lobster season opens on 15 Jun – 14 Feb, and Roatán's Coral spawning nights around 20 Aug – 25 Sep.