The best times to visit Cavan for ideal weather are

June 11th to September 9th

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



Other Cavan Travel Info

Weather in Cavan


Average temperatures in Cavan vary somewhat. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 18th 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 Cavan, 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 66.6°F (19.2°C) with temperatures rarely dropping below 52.9°F (11.6°C) at night.

Cavan Temperatures (Fahrenheit)


Cavan Temperatures (Celsius)


“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.

Cavan Perceived Temperature (F)


Cavan Perceived Temperature (C)



Average Cavan 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 44 39.2 34.1
Feb 45.9 40.5 35.6
Mar 49.6 42.4 35.6
Apr 55.3 47.1 39.1
May 57.9 50.6 44
Jun 63.9 56 48.4
Jul 65.9 58.8 52.5
Aug 64.1 57.4 51.5
Sep 61.3 54.5 48.3
Oct 55.9 49.8 43.8
Nov 48.9 43.9 38.6
Dec 43.8 38.8 33.4

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 6.7 4 1.2
Feb 7.7 4.7 2
Mar 9.8 5.8 2
Apr 12.9 8.4 3.9
May 14.4 10.3 6.7
Jun 17.7 13.3 9.1
Jul 18.8 14.9 11.4
Aug 17.8 14.1 10.8
Sep 16.3 12.5 9.1
Oct 13.3 9.9 6.6
Nov 9.4 6.6 3.7
Dec 6.6 3.8 0.8



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Cavan are March, September, and then June. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid April. For example, on the week of April 16th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid May with an average of 4 days of significant precipitation the week of May 7th.

When can you find snow in Cavan? 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 Cavan.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 39% 0 4.1
Feb 33% 0 3
Mar 23% 0 2.2
Apr 30% 0 2.7
May 38% 0 3.2
Jun 30% 0 3
Jul 38% 0 3.7
Aug 36% 0 4.1
Sep 28% 0 3.1
Oct 37% 0 4.4
Nov 35% 0 4.1
Dec 38% 0 3.5

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 39 0 10.4
Feb 33 0 7.6
Mar 23 0 5.6
Apr 30 0 6.9
May 38 0 8.1
Jun 30 0 7.6
Jul 38 0 9.4
Aug 36 0 10.4
Sep 28 0 7.9
Oct 37 0 11.2
Nov 35 0 10.4
Dec 38 0 8.9


Humidity and Wind

Cavan has some extremely humid months, and high humidity throughout the year. The least humid month is April (70.1% relative humidity), and the most humid month is December (87.5%).

Wind in Cavan is usually calm. The windiest month is January, followed by December and March. January’s average wind speed of around 7.3 knots (8.4 MPH or 13.5 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 mid December where average top sustained speeds reach 13.6 knots, which is considered a moderate breeze.

Relative Humidity (%)

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

Avg. Relative Humidity


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

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 7.3 Gentle breeze 12 Significant breeze
Feb 6.8 Light breeze 11.2 Significant breeze
Mar 6.9 Light breeze 11.3 Significant breeze
Apr 6.4 Light breeze 10.6 Gentle breeze
May 6.9 Light breeze 11.2 Significant breeze
Jun 5.4 Light breeze 9.1 Gentle breeze
Jul 5.5 Light breeze 9.3 Significant breeze
Aug 5.9 Light breeze 9.6 Gentle breeze
Sep 6 Light breeze 9.8 Significant breeze
Oct 6.4 Light breeze 10.5 Gentle breeze
Nov 6.7 Light breeze 11.1 Significant breeze
Dec 7.1 Gentle breeze 11.9 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 86.1%
Feb 83.2%
Mar 75.4%
Apr 70.1%
May 72%
Jun 70.9%
Jul 75.4%
Aug 78.7%
Sep 80.2%
Oct 84.4%
Nov 86%
Dec 87.5%


Is it Safe to Travel to Cavan?

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 Cavan, 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 Cavan 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

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 Cavan Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 62.8°F (17.1°C) and 47.8°F (8.8°C) with warmer temperatures in the later months. Rain is somewhat common with 7 to 12 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 moderate precipitation with 9 to 12 days of precipitation per month. June – August is the busiest season for tourism in Cavan, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 62.1°F (16.7°C) and 44.1°F (6.7°C), which will feel chilly given the humidity and wind. It rains or snows a good amount: 8 to 12 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 Cavan to be enjoyable for warm weather travelers. The average high during this season is between 47.8°F (8.8°C) and 43.4°F (6.3°C). On average, it rains or snows a great amount: 9 to 12 times per month. These times of year are the second busiest with tourists.


Best Times to TravelIreland › Cavan, Ireland