Arklow weather

Our guide to the weather in Arklow during September

16

Average high

3

UV Index

59mm

Monthly rainfall

85%

Humidity

We've looked at the most up-to-date weather data for Arklow, 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 Arklow weather in September.

What's the temperature like in Arklow during September?

The temperature is extremely stable in September with average highs of 16℃ and lows just 4℃ lower at 11℃. 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 Arklow during September?

On average, there will be 5 rainy days during the month, amounting to 59.0mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. You're not likely to see a thunderstorm during your trip.

Is it windy in Arklow during September?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during September. With moderate air temperatures, any breeze will feel cool.

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Weather in Arklow

Our month-by-month guide to the weather and climate in Arklow

7.8

Arklow weather in

January
7.9

Arklow weather in

February
8.7

Arklow weather in

March
10.1

Arklow weather in

April
12.4

Arklow weather in

May
14.9

Arklow weather in

June
16.9

Arklow weather in

July
16.9

Arklow weather in

August
15.5

Arklow weather in

September
13.5

Arklow weather in

October
10.5

Arklow weather in

November
8.4

Arklow weather in

December