Southampton Weather in September

Southampton in September sees high temperatures, with highs around 23°C (73°F) and overnight lows of 14°C (57°F). Rainfall is fairly high at around 101 mm (4 in) on average, so pack waterproofs just in case.

Rainfall in Southampton in September

Analyzing past climate data, one can expect approximately 9 days of rain, averaging 101 mm (4 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Southampton in September

In September, Southampton gets high temperatures, with highs of 23°C (73°F). Nights cool to around 14°C (57°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 14°C (57°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Southampton.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Southampton's climate page.

Southampton Temperature in September

Min Temperature 14°C (57°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 30%  

Precipitation 101 mm (4 in)  

Rainy days 9 days  

What to Wear in Southampton in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in Southampton in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Southampton's climate page.

More climate data for Southampton

Temperature Rainfall

See the full Southampton climate overview or explore weather in the United States of America.