Southampton Parish weather

Our guide to the weather in Southampton Parish during September

27

Average high

6

UV Index

216mm

Monthly rainfall

28

Sea temperature

We've looked at the most up-to-date weather data for Southampton Parish, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Southampton Parish weather in September.

How warm is it in Southampton Parish during September?

The temperature is extremely stable in September with average highs of 27℃ and lows just 1℃ lower at 26℃. Of course, the high humidity will make it feel even hotter. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.

Does it rain in Southampton Parish during September?

September is typically the wettest month in Southampton Parish. On average, there will be 8 rainy days during the month, amounting to 216.4mm in total. That's a lot of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. Due to the high temperature and humidity, you might expect lots of thunderstorms, however they're actually fairly infrequent at this time of year. On average, September will see just 3 days that produce a storm.

Is it windy in Southampton Parish during September?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during September. The high humidity and warm temperature will make the breeze feel warm, so any cooling effect will be limted.

How warm is the sea in Southampton Parish during September?

The water around Southampton Parish reaches a very pleasant 28℃ during September. This is very warm, and will feel bath-like. People who normally feel the cold will find this temperature perfectly acceptable. The hot air temperature and relatively high humidity will mean that you will feel comfortably warm when coming out of the water.

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Weather in Southampton Parish

Our month-by-month guide to the weather and climate in Southampton Parish

19.4

Southampton Parish weather in

January
18.9

Southampton Parish weather in

February
18.6

Southampton Parish weather in

March
19.6

Southampton Parish weather in

April
21.6

Southampton Parish weather in

May
24.4

Southampton Parish weather in

June
26.8

Southampton Parish weather in

July
27.8

Southampton Parish weather in

August
27.0

Southampton Parish weather in

September
25.0

Southampton Parish weather in

October
22.5

Southampton Parish weather in

November
20.6

Southampton Parish weather in

December