September could be a good time to visit Antigua, as the weather is generally fine. The average high temperature is around +82°F, and there are typically 1 sunny days in September. However, expect about 21 rainy days, and total monthly rainfall of approximately 116 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Good to know:
September is usually the hottest month of the year in Antigua;
Average weather
☀️
+82°F
Avg. max. temperature
+73°F
Min.
+91°F
Max.
116 mm
Total precipitation
78%
Avg. humidity
4 m/s
Avg. wind
1 ☀️
Sunny Days
4 ⛅️
Cloudy
21 🌦
Rainy
Our opinion: Antigua has OK weather in September.
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Average temperature in Antigua in September
Here are the expected maximum, average and minimum temperatures in Antigua for September based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in September is +84°F with a maximum of +86°F and a minimum of +79°F.
The average maximum temperature goes up 25% by the end of the month, compared with the beginning of the month, from +84°F to +86°F.
Is Antigua warm or cold in September?
Antigua is typically warm in September.
Maximum temperatures go up compared to the previous month from +82°F to +82°F. The minimum temperature also goes up from +79°F to +79°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is the hottest month in Antigua, here is the comparison with other months:
Water temperature in Antigua in September
Water in Antigua in September is Very warm. It varies from +83°F to +87°F, with an average of +85°F.Note that the air temperature is lower than the water temperature, averaging around +82°F.
The water temperature in September is one of the warmest of the entire year:
The warmest water temperatures in Antigua are reached in September, when the average sea temperature rises to +85°F. The coldest water temperatures are in February, with an average of +79°F.
Can you swim in Antigua in September?
You can definitely swim in Antigua in September, the water is very warm (+85°F in average), and might even be unpleasant for ones who like it more fresh.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Don't forget sunscreen and a hat, it's going to be hot!
Climate in Antigua in September
Antigua weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+82°F
+82°F
+81°F
Min. temperature
+75°F
+73°F
+73°F
Max. temperature
+88°F
+91°F
+90°F
Rainfall
88 mm
116 mm
123 mm
Wind
5 m/s
4 m/s
4 m/s
Avg. water temperature
+84°F
+85°F
+84°F
Humidity
77%
78%
78%
Air pressure
1014 HPa
1012 HPa
1012 HPa
Sunny days
1
1
1
Cloudy days
3
4
4
Rainy days
24
21
22
Snowy days
0
0
0
September weather is still as ok as in August.The temperature levels stay the same in the area of +82°F for average maximum temperature during the day.Prepare for more rain. Average rainfall goes from 88 mm to 116 mm.Humidity rises from 77% to 78%.Winds are calmer in comparison to August, going down from 5 m/s to 4 m/s on average.The amount of sunny days stay about the same, averaging 1 sunny days during the month.
October brings much the same weather, it remains ok.
Wind speed in Antigua in September based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Antigua is gradually increasing during September, going from 3 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Antigua based on historical data.
Last Year
Historical Data
Total precipitation in September is about 107 mm, with a 70% chance of rain on a typical day. The maximum amount of rainfall per day is around 26 mm, which is moderate rain.September is a pretty wet month with over 21 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
September is one of the rainiest months in Antigua, here is a comparison with other months, total mm:
Antigua wettest month is October, where a typical day has a 71% chance of precipitation and 123 mm of rainfall per day. February, on the other hand, is the driest month with a mere 66% chance of precipitation and 23 mm of rainfall per day.
How was the weather last September in Antigua?
This is the weather in Antigua in September 2023:
1 September
☀️
+84°F
2 September
☁️
+84°F
3 September
☀️
+84°F
4 September
☀️
+84°F
5 September
☀️
+85°F
6 September
🌧️
+83°F
7 September
☀️
+84°F
8 September
🌧️
+85°F
9 September
🌧️
+84°F
10 September
☀️
+83°F
11 September
☀️
+85°F
12 September
☁️
+85°F
13 September
☁️
+85°F
14 September
☁️
+85°F
15 September
☀️
+84°F
16 September
☁️
+84°F
17 September
☁️
+84°F
18 September
☁️
+84°F
19 September
☀️
+84°F
20 September
☀️
+84°F
21 September
🌧️
+82°F
22 September
☀️
+83°F
23 September
🌧️
+85°F
24 September
☁️
+85°F
25 September
☁️
+85°F
26 September
☁️
+85°F
27 September
🌧️
+84°F
28 September
☀️
+85°F
29 September
☁️
+84°F
30 September
☁️
+85°F
In September 2023 Antigua had 12 sunny days, 12 cloudy days, and 6 rainy days. The average maximum temperature was +84°F, with an absolute maximum of +86°F and a minimum of +82°F. The average humidity was 81%, with a maximum of 100% and a minimum of 70%. The average wind speed was 3 m/s, with a maximum of 7 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change Over the Years
This is how Antigua climate has changed over the last 43 years.
The climate in Antigua in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1985 (+78°F) and the highest in 2019 (+84°F). The driest year was 1994 with only 425 mm of rainfall, and the wettest year was 2020 with 1243 mm.
FAQ
Frequently asked questions about the weather in Antigua in September:
Is September a good time to visit Antigua?
It’s always a good time to visit Antigua, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Antigua in September?
September is warm in Antigua. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Can you swim in Antigua in September?
Yes, you can swim in Antigua in September, the water is very warm, with temperature averaging at +85°F, but it's important to manage hydration and sun exposure.
Is Antigua rainy in September?
Antigua is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Antigua in September?
Usually, it’s not very sunny in Antigua in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Antigua, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
