The best times to visit Ireland for ideal weather are
June 4th to September 23rd
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Ireland Travel Guide
Weather in Ireland
Average temperatures in Ireland vary very little and are seasonally temperate. The area is in the top 71 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Ireland, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 65.3°F (18.5°C) with temperatures rarely dropping below 54.3°F (12.4°C) at night.
Ireland Temperatures (Fahrenheit)
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.
Ireland Perceived Temperature (F)
Ireland Perceived Temperature (C)
Average 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 precipitation in Ireland are January, November, and then December. The lowest chance of rain or snow occurs around mid-April. For example, on the week of April 16th there are only 1.9 days of precipitation on average. By contrast, it’s most likely to rain or snow in early-to-mid-January with an average of 4.7 days with significant precipitation the week of January 8th.
When can you find snow in Ireland? Weather stations report a good amount of snow throughout the year likely to be deepest around March, especially close to early April. Powder (new snow) is most often falls around April 2nd. 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 Ireland.
Snow on the Ground
The graph below shows the average snow on the ground in 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
Ireland has above average humidity compared to most tourist destinations. The least humid month is April (72.6% relative humidity), and the most humid month is November (81.7%).
Wind in Ireland is usually stronger than usual. The windiest month is January, followed by December and November. January’s average wind speed of around 12.2 knots (14 MPH or 22.6 KPH) is considered “moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early-to-mid-January where average top sustained speeds reach 20.3 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Ireland.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots.
|Month||Avg. Wind||Meaning (Beaufort)||Avg. Maximum Sustained Wind||Meaning (Beufort)|
|Jan||12.2||a moderate breeze||19.1||a fresh breeze|
|Feb||10.9||a gentle breeze||17.2||a fresh breeze|
|Mar||11||a moderate breeze||17.2||a fresh breeze|
|Apr||9.6||a gentle breeze||15.1||a moderate breeze|
|May||10.5||a gentle breeze||15.9||a fresh breeze|
|Jun||8.9||a gentle breeze||13.9||a moderate breeze|
|Jul||9||a gentle breeze||14.1||a fresh breeze|
|Aug||9.4||a gentle breeze||14.6||a moderate breeze|
|Sep||9.6||a gentle breeze||14.7||a fresh breeze|
|Oct||10.1||a gentle breeze||15.7||a moderate breeze|
|Nov||11.2||a moderate breeze||17.4||a fresh breeze|
|Dec||12.2||a moderate breeze||18.9||a fresh breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Ireland?
As of 5/2/2017 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.
The Busiest and Least Crowded Months
The busiest month for tourism in Ireland is July, followed by August and January. 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 Ireland in November. 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 Ireland Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 61°F (16.1°C) and 48.9°F (9.4°C) with warmer temperatures in the later months. Rain is frequent with 11 to 16 days of precipitation per month. Spring is busy for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have slightly cold weather with high temperatures that are brisk. These months see moderate precipitation with 13 to 17 days of precipitation per month. June – August is the busiest season for tourism in Ireland, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 62.8°F (17.1°C) and 48.1°F (8.9°C), which will feel chilly given the humidity and wind. It rains or snows a very great amount: 12 to 17 days per month. Tourism is the slowest during these months due to the weather, so hotels may be lower priced.
Winter (December through February)
Weather is too cold this time of year in Ireland to be enjoyable for warm weather travelers. The average high during this season is between 49°F (9.4°C) and 46.4°F (8°C). On average, it rains or snows a great amount: 14 to 18 times per month. These times of year are fairly slow with tourists.