Antigua & Barbuda weather in September
Antigua & Barbuda in September averages 28°C (82°F), 191 mm of rain and 6.7 hours of sun a day. It is one of the wetter months of the year here.
Of the twelve months in Antigua & Barbuda, September is the fourth warmest and the second wettest.
- Average temp
- 28°C (82°F)
24–32°C · 74–89°F
- Rainfall
- 191 mm
A wet month
- Sunshine
- 6.7 h
hours per day
What is Antigua & Barbuda 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 Antigua & Barbuda 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
191 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 Antigua & Barbuda is about the same temperature as August and 27 mm wetter than it, which averages 28°C (82°F).
September in Antigua & Barbuda is about the same temperature as October and 20 mm drier than it, which averages 27°C (81°F).
Daylight in Antigua & Barbuda in September
On 15 September the sun is up for 12 hours 13 minutes in Antigua & Barbuda, rising about 05:55 and setting about 18:08 local time.
September ends 27 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 Antigua & Barbuda
What to read before you book.
Antigua & Barbuda 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 | 25°C / 77°F | 92 mm |
| February | 25°C / 77°F | 58 mm |
| March | 25°C / 78°F | 69 mm |
| April | 26°C / 79°F | 98 mm |
| May | 27°C / 81°F | 127 mm |
| June | 28°C / 82°F | 104 mm |
| July | 28°C / 82°F | 141 mm |
| August | 28°C / 82°F | 165 mm |
| September | 28°C / 82°F | 191 mm |
| October | 27°C / 81°F | 211 mm |
| November | 26°C / 79°F | 177 mm |
| December | 25°C / 77°F | 130 mm |
Check another month
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FAQs about Antigua & Barbuda in September
September climate averages for Antigua & Barbuda, 1991–2020.
Antigua & Barbuda averages 28°C (82°F) in September, ranging from about 24°C (74°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 191 mm, which makes it one of the wetter months here — expect heavy bursts rather than all-day drizzle.
They are about the same. September averages 28°C (82°F) and October 27°C (81°F), so temperature alone will not decide between them.
September is about as warm as August, and 27 mm wetter.
It is outside the easiest window. The most comfortable stretch here is January to June; 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 6.7 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 thirty-year 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 05:55 and sunset about 18:08 local time. Both shift across the month — the month ends 27 minutes shorter than it starts.
