St Helier weather
Our guide to the weather in St Helier during September
We've looked at the most up-to-date weather data for St Helier, 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 St Helier weather in September.
What's the temperature like in St Helier during September?
The temperature is extremely stable in September with average highs of 18℃ and lows just 2℃ lower at 15℃. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it rain in St Helier during September?
On average, there will be 5 rainy days during the month, amounting to 81.4mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in St Helier during September?
Expect moderate breeze becoming stronger at times during September, with occasional gusts up to 21mph. With moderate air temperatures, any breeze will feel cool.
St Helier Blog posts
From the UK's most popular travel bloggers
The Club Hotel & Spa St Helier Review, Jersey
25th June 2023 by I'm just a girl 16
Are you planning a trip to Jersey in the Channel Islands and looking for the perfect place to stay? Look no further than The Club Hotel & Spa St Helier! This review post will provide you with an ultimate insight into my stay at this luxurious hotel. Please see my disclaimer for more information regarding mentions of a press trip with Jet2holidays and Visit Jersey, plus affiliate links....
Weather in St Helier
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