Citywest Weather in September

September in Citywest brings moderate temperatures, with daytime highs of 18°C (64°F) and nights around 10°C (50°F). Quite a bit of rainfall is expected, around 74 mm (2.9 in), so pack an umbrella.

Rainfall in Citywest in September

Looking at the last 30 years, the data shows about 16 days with rain, averaging 74 mm (2.9 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Citywest in September

September in Citywest brings typical temperatures with highs around 18°C (64°F) and lows of 10°C (50°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 10°C (50°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Citywest in September

The area experiences a moderate amount of sunshine, with approximately 128 hours of sunlight expected. This means a decent mix of sun and overcast.

Wind Speed in Citywest in September

Wind speeds average 4 m/s (8 knots) during September. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

Average water temperature in September

The water is 15°C (59°F) this month — cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.

For Citywest itself, July and August generally stand out with 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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Check the conditions for any month of the year.

• January
• February
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• May
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• September
• October
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For a detailed overview over the year and the best time to visit Ireland, check out our Citywest's climate page.

Citywest Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 18°C (64°F)  

Water Temperature 15°C (59°F) *  

Chance of Rain 53%  

Precipitation 74 mm (2.9 in)  

Rainy days 16 days  

Humidity 71% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 128 hours *  

Percentage Sunshine 33% *  

* Data from: Dublin, Ireland (21 KM, 13 Miles).

What to Wear in Citywest in September

For Citywest in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. With water temperatures around 15°C (59°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Citywest 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.

• 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 Citywest's climate page.

More climate data for Citywest

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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