The best times to visit Rosslare Harbour for ideal weather are

May 28th to October 21st

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Rosslare Harbour Travel Info

Weather in Rosslare Harbour

Temperature

Average temperatures in Rosslare Harbour vary somewhat. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a low chance of precipitation most of the year. The area is somewhat temperate — in the 46th 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 Rosslare Harbour, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally early September where highs are regularly around 65.9°F (18.8°C) with temperatures rarely dropping below 57.9°F (14.4°C) at night.

Rosslare Harbour Temperatures (Fahrenheit)

Key
High
Average
Low

Rosslare Harbour Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

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.

Rosslare Harbour Perceived Temperature (F)

Key
High
Average
Low

Rosslare Harbour Perceived Temperature (C)

Key
High
Average
Low

 

Average Rosslare Harbour 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.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 50 46.6 42.2
Feb 49.6 46.1 42.2
Mar 50.4 46.1 41.6
Apr 55.7 51.1 47.2
May 59.1 53.7 48.9
Jun 61.9 57.4 53.7
Jul 63.9 59.8 55.8
Aug 64.4 60.7 56.8
Sep 62.9 59.4 55.7
Oct 59.4 56.1 52.4
Nov 54.3 50.5 45.9
Dec 50.4 47.3 43.6

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 10 8.1 5.7
Feb 9.8 7.8 5.7
Mar 10.2 7.8 5.3
Apr 13.2 10.6 8.4
May 15.1 12.1 9.4
Jun 16.6 14.1 12.1
Jul 17.7 15.4 13.2
Aug 18 15.9 13.8
Sep 17.2 15.2 13.2
Oct 15.2 13.4 11.3
Nov 12.4 10.3 7.7
Dec 10.2 8.5 6.4

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Rosslare Harbour are September, April, 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 early to mid March. For example, on the week of March 12th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late June with an average of 4 days of significant precipitation the week of June 25th.

When can you find snow in Rosslare Harbour? Weather stations report no annual snow. 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 Rosslare Harbour.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Rosslare Harbour (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 31% 0 2.5
Feb 19% 0 1.6
Mar 16% 0 1.7
Apr 8% 0 0.6
May 23% 0 1.9
Jun 28% 0 4.4
Jul 27% 0 2.4
Aug 16% 0 1.3
Sep 3% 0 0.7
Oct 10% 0 1.1
Nov 21% 0 1.9
Dec 19% 0 1.6

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 31 0 6.4
Feb 19 0 4.1
Mar 16 0 4.3
Apr 8 0 1.5
May 23 0 4.8
Jun 28 0 11.2
Jul 27 0 6.1
Aug 16 0 3.3
Sep 3 0 1.8
Oct 10 0 2.8
Nov 21 0 4.8
Dec 19 0 4.1

 

Humidity and Wind

Rosslare Harbour has some extremely humid months, and high humidity throughout the year. The least humid month is March (74.1% relative humidity), and the most humid month is June (83.1%).

Wind in Rosslare Harbour is usually moderate. The windiest month is January, followed by December and March. January’s average wind speed of around 13.3 knots (15.3 MPH or 24.6 KPH) is considered “a 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 23.3 knots, which is considered a strong breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Rosslare Harbour.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

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 13.3 Significant breeze 20.1 Strong breeze
Feb 10.3 Gentle breeze 15.8 Significant breeze
Mar 12 Significant breeze 18.4 Strong breeze
Apr 9.8 Gentle breeze 14.5 Significant breeze
May 11.4 Significant breeze 16.8 Strong breeze
Jun 9.2 Gentle breeze 14.1 Significant breeze
Jul 9.6 Gentle breeze 13.8 Strong breeze
Aug 8.9 Gentle breeze 13.5 Significant breeze
Sep 9.9 Gentle breeze 13.8 Strong breeze
Oct 8.2 Gentle breeze 11.9 Significant breeze
Nov 8.4 Gentle breeze 13.6 Strong breeze
Dec 12 Significant breeze 16.9 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 77.9%
Feb 80.2%
Mar 74.1%
Apr 78%
May 74.9%
Jun 83.1%
Jul 77.3%
Aug 76.5%
Sep 74.3%
Oct 78.2%
Nov 76.1%
Dec 75.3%

 

Is it Safe to Travel to Rosslare Harbour?

Our best data indicates this area is generally safe. As of Dec 04, 2023 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 Nov 28, 2023.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Rosslare Harbour, 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 Rosslare Harbour 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

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 68.9 in December means 68.9% of the tourists vs. January.

 

 

Overall Rosslare Harbour Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 61.2°F (16.2°C) and 48.6°F (9.2°C) with warmer temperatures in the later months. Rain is somewhat common with 2 to 7 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 brisk. These months see the most precipitation with 5 to 8 days of precipitation per month. June – August is the busiest season for tourism in Rosslare Harbour, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 65.3°F (18.5°C) and 51.9°F (11.1°C), which will feel comfortable given the humidity and wind. It rains or snows a normal amount: 1 to 6 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 Rosslare Harbour to be enjoyable for warm weather travelers. The average high during this season is between 53.2°F (11.8°C) and 47°F (8.3°C). On average, it rains or snows a fair amount: 5 to 9 times per month. These times of year are the second busiest with tourists.

 

Best Times to Travel› Ireland › Rosslare Harbour, Ireland