Belize weather in September
Belize in September averages 28°C (83°F), 235 mm of rain and 7.1 hours of sun a day. It is one of the wetter months of the year here.
Of the twelve months in Belize, September is the fifth warmest, the third wettest and the sixth dullest.
- Average temp
- 28°C (83°F)
25–32°C · 77–89°F
- Rainfall
- 235 mm
A wet month
- Sunshine
- 7.1 h
hours per day
What is Belize like in September?
Daytime
Days are warm, typically in the mid-20s°C or above.
Rain
Expect frequent rain — this is a wet month.
Evening
Evenings stay warm.
What should I pack for Belize in September?
High-factor sun cream
With daytime highs around 32°C, burn time is short even in shade.
Sunglasses and a brimmed hat
Midday glare is the part people underpack for, not the heat itself.
Loose cotton or linen
Synthetics stop working once you are sweating through them all day.
A refillable water bottle
Daily highs this warm need roughly double the water a temperate day does.
A proper waterproof, not a folding umbrella
235 mm in the month usually arrives as heavy bursts that an umbrella will not cover.
A dry bag for phone and documents
Worth it for one downpour caught between the taxi and the door.
September compared with August and October
September in Belize is about the same temperature as August and 30 mm wetter than it, which averages 29°C (83°F).
September in Belize is 1.1°C warmer than October and 68 mm drier than it, which averages 27°C (81°F).
Daylight in Belize in September
On 15 September the sun is up for 12 hours 13 minutes in Belize, rising about 05:42 and setting about 17:55 local time.
September ends 28 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 56 minutes short of June, the longest-lit month here.
Travel guides for Belize
What to read before you book.
Belize weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 24°C / 76°F | 144 mm |
| February | 25°C / 78°F | 63 mm |
| March | 26°C / 79°F | 45 mm |
| April | 28°C / 82°F | 46 mm |
| May | 29°C / 83°F | 136 mm |
| June | 29°C / 83°F | 242 mm |
| July | 28°C / 83°F | 180 mm |
| August | 29°C / 83°F | 205 mm |
| September | 28°C / 83°F | 235 mm |
| October | 27°C / 81°F | 303 mm |
| November | 26°C / 78°F | 230 mm |
| December | 25°C / 76°F | 137 mm |
Check another month
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FAQs about Belize in September
September climate averages for Belize, 1991–2020.
Belize averages 28°C (83°F) in September, ranging from about 25°C (77°F) at night to 32°C (89°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Yes, a lot. September brings about 235 mm, which makes it one of the wetter months here — expect heavy bursts rather than all-day drizzle.
Yes. September averages 28°C (83°F) against 27°C (81°F) in October — 1.1°C warmer.
September is about as warm as August, and 30 mm wetter.
It is outside the easiest window. The most comfortable stretch here is December to May; September sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
About 7.1 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 13 minutes of daylight in mid-September, against 13 hours 9 minutes in June and 11 hours 7 minutes in December.
On 15 September, sunrise is about 05:42 and sunset about 17:55 local time. Both shift across the month — the month ends 28 minutes shorter than it starts.
