Sway Weather in September

September in Sway typically sees daytime highs of 19°C (66°F) and nighttime lows of 13°C (55°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the summer season.

Rainfall in Sway in September

Records from the past 30 years suggest around 12 days of rain, with 74 mm (2.9 in) average for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Sway in September

September in Sway brings pleasant temperatures, with highs of 19°C (66°F) and nights around 13°C (55°F). September is part of summer. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to around 13°C (55°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.

Sunshine in Sway in September

You can expect a moderate amount of sunlight, with approximately 149 hours. This means a pleasant mix of sun and overcast.

Average water temperature in September

The water temperature is 17°C (63°F) — chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

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

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For a detailed overview over the year and the best time to visit the United Kingdom, check out our Sway's climate page.

Sway Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 19°C (66°F)  

Water Temperature 17°C (63°F) *  

Chance of Rain 40%  

Precipitation 74 mm (2.9 in)  

Rainy days 12 days  

Humidity 82% *  

Sunshine 149 hours *  

Percentage Sunshine 44% *  

* Data from: Southampton, the United Kingdom (19 KM, 12 Miles).

What to Wear in Sway 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. Rain gear is recommended, you can expect wet weather on multiple days. With water temperatures around 17°C (63°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Sway in September

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

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 Kingdom, check out our Sway's climate page.

More climate data for Sway

Temperature Rainfall Sunshine Humidity Water Temp

See the full Sway climate overview or explore weather in the United Kingdom.