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Castlegregory Weather in September

September in Castlegregory sees daytime temperatures around 18°C (64°F) and lows of 11°C (52°F) at night. With around 96 mm (3.8 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Castlegregory in September

Historically, the month has about 20 days of rain, averaging 96 mm (3.8 in) in total. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Castlegregory in September

September in Castlegregory brings typical temperatures with highs around 18°C (64°F) and lows of 11°C (52°F). During September, you'll experience the summer season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to around 11°C (52°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 Castlegregory in September

The area enjoys a moderate level of sunlight, with around 118 hours. It's a good balance between sunny and cloudy days.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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

Castlegregory Temperature in September

Min TemperatureMin Temperature 11°C (52°F)  
Max TemperatureMax Temperature 18°C (64°F)  
Chance of RainChance of Rain 67%  
PrecipitationPrecipitation 96 mm (3.8 in)  
Rainy daysRainy days 20 days  
HumidityHumidity 77% *  
SunshineSunshine 118 hours *  
Percentage SunshinePercentage Sunshine 30% *  
* Data from: Valentia, Ireland (39 KM, 24 Miles).

Best Places in Ireland in September

Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in September →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Castlegregory in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Castlegregory in September

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

Swimming
6/10
Cycling
6/10
Walking
6/10
Camping
8/10
Outdoor sports
9/10

Select a Month

Check the conditions for any month of the year.

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

More climate data for Castlegregory