Belize City in September
In September, Belize City averages 30°C (85°F) during the day and 25°C (78°F) at night, with frequent rain — about 30 days of the month see precipitation (225 mm total).
ShoulderConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
September offers comfortable temperatures in Belize City, with some rain to plan around.
How September compares to the rest of the year in Belize City
September is one of the warmest months in Belize City (2nd of 12) and one of the wettest months (3rd of 12). Daytime temperature runs 1°C above the annual average (28°C). September runs roughly the same as August (30°C) and cools 1°C in October (29°C).
September sunrise & sunset in Belize City
Times shown for Belize City local time (America/Belize), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Belize City — September
Golden-hour and blue-hour windows for the 15th of September, in Belize City's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Belize City in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Shoulder) and Belize City's popularity.
Crowds & pricing — September in Belize City
Belize City is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — September in Belize City
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Belize City in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 26°C / 79°F | 22°C / 72°F | 106 mm | 24 | — |
| February | 27°C / 80°F | 23°C / 74°F | 55 mm | 22 | — |
| March | 28°C / 82°F | 24°C / 76°F | 63 mm | 24 | — |
| April | 29°C / 84°F | 25°C / 78°F | 52 mm | 22 | — |
| May | 29°C / 85°F | 26°C / 79°F | 143 mm | 29 | — |
| June | 29°C / 85°F | 26°C / 79°F | 229 mm | 29 | — |
| July | 29°C / 85°F | 26°C / 79°F | 164 mm | 30 | — |
| August | 30°C / 85°F | 26°C / 79°F | 193 mm | 30 | — |
| September | 30°C / 85°F | 25°C / 78°F | 225 mm | 30 | — |
| October | 29°C / 84°F | 25°C / 76°F | 251 mm | 29 | — |
| November | 27°C / 81°F | 23°C / 74°F | 242 mm | 27 | — |
| December | 27°C / 80°F | 23°C / 73°F | 136 mm | 24 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Belize City in September →
Frequently asked questions
How hot is Belize City in September?
In September, Belize City averages a high of 30°C (85°F) and a low of 25°C (78°F) — generally hot.
Does it rain a lot in Belize City in September?
September is quite rainy in Belize City, with about 30 rainy days on average.
Is September a good time to visit Belize City?
September is hot but on the rainy side. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Belize City in September?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full September packing list for Belize City for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.