Southampton
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Southampton Weather in September

Southampton in September averages 26°C (79°F) during the day and 14°C (57°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Southampton in September

Climate statistics over the past 30 years suggest around 8 days of rain, with 96 mm (3.8 in) average for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Southampton in September

September is a good time to be in Southampton. Days are excellent, reaching 26°C (79°F), with nights around 14°C (57°F). Overall, the month follows a fairly predictable daily temperature pattern. At 14°C (57°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Southampton in September

The city usually sees around 215 hours of sunlight, indicating many sunny days , a great month for sightseeing.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Southampton.

Southampton Temperature in September

Min Temperature
14°C (57°F)
Max Temperature
26°C (79°F)
Chance of Rain
27%
Precipitation
96 mm (3.8 in)
Rainy days
8 days
Sunshine
215 hours *
Percentage Sunshine
57% *
* Data from: Trenton, the United States of America (32 KM, 20 Miles).

Southampton Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Southampton - and find the best time to visit.

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Southampton in September

Warm but pleasant conditions in Southampton in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Southampton in September

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

  • Swimming
    9/10
  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    8/10
  • Outdoor sports
    7/10

Southampton 3-Day Forecast

More climate data for Southampton

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.