The best times to visit Southeast Ireland for ideal weather are
June 4th to September 16th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Southeast Ireland Travel Guide
Other Southeast Ireland Travel Info
Weather in Southeast Ireland
Average temperatures in Southeast Ireland vary somewhat. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 33rd percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Southeast Ireland, the hottest months are August, July, and then June. See average monthly temperatures below. The warmest time of year is generally mid to late August where highs are regularly around 72.3°F (22.4°C) with temperatures rarely dropping below 54.7°F (12.6°C) at night.
Southeast Ireland Temperatures (Fahrenheit)
Southeast Ireland Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Southeast Ireland Perceived Temperature (F)
Southeast Ireland Perceived Temperature (C)
Average Southeast Ireland Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Southeast Ireland are April, September, and then October. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid March. For example, on the week of March 19th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid June with an average of 6 days of significant precipitation the week of June 18th.
When can you find snow in Southeast Ireland? Weather stations report a very small amount of seasonal snow likely to be deepest around March, especially close to late February and early March. The best time to ski (if at all) in Southeast Ireland is often around around February 26th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Southeast Ireland.
Snow on the Ground
The graph below shows the average snow on the ground in Southeast Ireland (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Southeast Ireland has some extremely humid months, and above average humidity throughout the year. The least humid month is April (65% relative humidity), and the most humid month is October (84%).
Wind in Southeast Ireland is usually moderate. The windiest month is January, followed by December and March. January’s average wind speed of around 9.6 knots (11 MPH or 17.7 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early December where average top sustained speeds reach 20 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Southeast Ireland.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||9.6||Gentle breeze||16.8||Significant breeze|
|Feb||7.7||Gentle breeze||14.3||Significant breeze|
|Mar||8.7||Gentle breeze||15.1||Significant breeze|
|Apr||6.3||Light breeze||10.9||Gentle breeze|
|May||7.2||Gentle breeze||13||Significant breeze|
|Jun||6.3||Light breeze||10.6||Gentle breeze|
|Jul||6.6||Light breeze||11.9||Significant breeze|
|Aug||6.6||Light breeze||10.8||Gentle breeze|
|Sep||6||Light breeze||10.8||Significant breeze|
|Oct||4.7||Light breeze||9.5||Gentle breeze|
|Nov||6||Light breeze||10.7||Significant breeze|
|Dec||9||Gentle breeze||15.8||Significant breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Southeast Ireland?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Ireland; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Oct 04, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Southeast Ireland, Ireland is January, followed by July and February. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Southeast Ireland in December. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Southeast Ireland Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 67.5°F (19.7°C) and 50.8°F (10.4°C) with warmer temperatures in the later months. Rain is somewhat common with 3 to 9 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the most precipitation with 8 to 14 days of precipitation per month. June – August is the busiest season for tourism in Southeast Ireland, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 68°F (20°C) and 50.5°F (10.3°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 4 to 5 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is too cold this time of year in Southeast Ireland to be enjoyable for warm weather travelers. The average high during this season is between 53.1°F (11.7°C) and 46.1°F (7.8°C). On average, it rains or snows a great amount: 7 to 12 times per month. These times of year are the second busiest with tourists.