Antigua · September
Low seasonAntigua · North America
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ø day, range from coolest to warmest dayØ dayrange | 28° (82°)26– (79–)29 (84) | 28° (82°)26– (79–)29 (84) | 29° (84°)26– (79–)30 (86) | 29° (84°)26– (79–)31 (88) | 30° (86°)27– (81–)31 (88) | 31° (88°)28– (82–)31 (88) | 31° (88°)29– (84–)31 (88) | 31° (88°)29– (84–)32 (90) | 31° (88°)28– (82–)32 (90) | 31° (88°)28– (82–)32 (90) | 30° (86°)28– (82–)31 (88) | 29° (84°)27– (81–)29 (84) |
Ø night, range from coldest to warmest nightØ nightrange | 24° (75°)21– (70–)25 (77) | 23° (73°)20– (68–)25 (77) | 24° (75°)21– (70–)25 (77) | 24° (75°)22– (72–)26 (79) | 25° (77°)22– (72–)27 (81) | 26° (79°)23– (73–)27 (81) | 27° (81°)23– (73–)28 (82) | 27° (81°)23– (73–)28 (82) | 26° (79°)23– (73–)28 (82) | 26° (79°)22– (72–)27 (81) | 25° (77°)22– (72–)27 (81) | 24° (75°)21– (70–)26 (79) |
☀️Sunshine | 9h UV 7 | 9h UV 8 | 10h UV 9 | 10h UV 9 | 10h UV 9 | 10h UV 9 | 10h UV 9 | 9h UV 9 | 9h UV 9 | 9h UV 8 | 8h UV 7 | 9h UV 6 |
🌊Water Temp | 27° (81°) | 27° (81°) | 27° (81°) | 27° (81°) | 28° (82°) | 29° (84°) | 29° (84°) | 29° (84°) | 30° (86°) | 29° (84°) | 29° (84°) | 28° (82°) |
🌧Rain Days | 7d72mm (2.8") | 5d32mm (1.3") | 4d39mm (1.5") | 5d60mm (2.4") | 7d104mm (4.1") | 7d98mm (3.8") | 9d111mm (4.4") | 9d114mm (4.5") | 11d136mm (5.4") | 10d139mm (5.5") | 9d145mm (5.7") | 9d95mm (3.7") |
Best travel time current monthØ = average · small figures = range: coolest–warmest day / coldest–warmest nightClimate data 2005–2025 · Source: ERA5 + station data
Off-season — lowest travel prices with still acceptable climate.
September in Antigua is generally manageable, but with 11 rain days it's not a reliably sunny month. Better conditions can be found in January, February, March, April, May, and June.
Daytime highs reach 31°C (88°F) with a daily average of 29°C (84°F) — nights stay warm at 26°C (79°F). Peaks reach around 32°C (90°F), the coldest nights around 23°C (73°F). The sun shines an average of 9 hours per day; there are 11 rain days with 136 mm (5.4 in) total. The water is a warm 30°C (86°F) — perfect for snorkelling and swimming.
Sun protection, a hat, and plenty of water are essential at these temperatures. Plan activities for early morning or evening.
Summer in Antigua is hot and humid, with highs around 30°C (86°F) and the sea at 29°C (84°F). Rain falls in heavy showers, and during the hurricane season some hotels and restaurants close for weeks. The beaches belong almost entirely to locals and a handful of visitors.
Packing list for Antigua in September
- Light summer clothes
- Swimwear and beach towel
- SPF 50 sunscreen
- Sunglasses
- Sun hat
- Light umbrella or rain poncho
- Insect repellent
- Travel first-aid kit
Frequently Asked Questions
- Is September a good time to visit Antigua?
- September is not an optimal month for Antigua (Score: 62/100), but it is manageable. For better conditions, consider January, February, March, April, May, and June.
- How warm is it in Antigua in September?
- In September, Antigua sees daily highs of 31°C (88°F). Nights cool to 26°C (79°F), with a daily average of 29°C (84°F). Peaks reach around 32°C (90°F), the coldest nights around 23°C (73°F).
- How much rain falls in Antigua in September?
- In September, Antigua receives an average of 136 mm (5.4 in) of rain over 11 rain days. An umbrella may occasionally be needed.
- How many sunshine hours does Antigua get in September?
- Antigua averages 9 sunshine hours per day in September — close to the annual average.
- How warm is the water in Antigua in September?
- Water temperature in Antigua in September averages 30°C (86°F) — ideal for swimming and snorkelling.
