Straffan Weather in September

Straffan in September averages 18°C (64°F) during the day and 10°C (50°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Straffan in September

You can expect rain on roughly 16 days based on historical data, averaging 71 mm (2.8 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Straffan in September

September in Straffan sees highs of 18°C (64°F) and lows of 10°C (50°F) overnight. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Straffan in September

The month experiences a moderate amount of sunlight, with 128 hours of sunshine. This provides a nice balance between sunshine and clouds.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable 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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• January
• February
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• May
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• October
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For a detailed overview over the year and the best time to visit Ireland, check out our Straffan's climate page.

Straffan Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 53%  

Precipitation 71 mm (2.8 in)  

Rainy days 16 days  

Humidity 71% *  

Sunshine 128 hours *  

Percentage Sunshine 33% *  

* Data from: Dublin, Ireland (27 KM, 16 Miles).

What to Wear in Straffan in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Straffan 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

4/10

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 Ireland, check out our Straffan's climate page.

More climate data for Straffan

Temperature Rainfall Sunshine Humidity

See the full Straffan climate overview or explore weather in Ireland.