World Weather & Climate Information

Average weather September in Dublin (Dublin County), Ireland

The average minimum temperature (usually the minimum temperature is noted during the night) in Dublin in September is 9.0°C (48.2°F). The amount of rain in September is normal with an average of 66mm (2.6in). The average maximum temperature lies around 16.0°C (60.8°F). With a water temperature of around 14.0°C (57.2°F), this is not the best month to swim. You will see the sun sometimes in this month, it has 128 hours of sun.

So what to wear in September? Visitors traveling to Dublin should plan on bringing a totally waterproof rain jacket since it will be raining some days. Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly.

Do these climate conditions match with when you want to go to Dublin? Find out where to stay here.

For other monthly weather averages and what to do in September look at the numbers below.

Monthly averages

°F
Min Temperature 48.2°F
Max Temperature 60.8°F
Water Temperature 57.2°F
Chance of Rain 56.7%
Precipitation 2.6in
Rainy Days 17
Windspeed 8.9mph
Humidity 79%
Sunshine Hours 128
Percentage Sunshine 33%

What to Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Swimming
5/10
Cycling
6/10
Walking
6/10
Camping
4/10
Outdoor sports
10/10

More climate information for Dublin

Weather and Climate offers all the information you need to know about the climate in Dublin.

We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in Ireland and climate and forecast data for all other countries in the world.

Cheapest month to fly to Dublin

Where to stay in Dublin

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