Portrush Weather in September

September in Portrush sees daytime temperatures around 16°C (61°F) and lows of 12°C (54°F) at night. With around 108 mm (4.3 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Portrush in September

You can typically expect 20 days of rain this month, averaging around 108 mm (4.3 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Portrush in September

In September, expect moderate temperatures in Portrush, with highs of 16°C (61°F) and lows of 12°C (54°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 12°C (54°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 Portrush in September

The area enjoys a balanced 118 hours of sunlight, ensuring it's neither too overcast nor too sunny.

If you prefer dry days with pleasant temperatures, June typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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

Portrush Temperature in September

Min Temperature 12°C (54°F)  

Max Temperature 16°C (61°F)  

Chance of Rain 68%  

Precipitation 108 mm (4.3 in)  

Rainy days 20 days  

Sunshine 118 hours *  

Percentage Sunshine *  

* Data from: Derry, Ireland (47 KM, 29 Miles).

What to Wear in Portrush in September

Pack for changing conditions in Portrush in September. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Portrush in September

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

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

6/10

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 Portrush's climate page.

More climate data for Portrush

Temperature Rainfall Sunshine

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