The best times to visit Islay Island for ideal weather are

June 25th 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 Islay Island Travel Info

Weather in Islay Island


Average temperatures in Islay Island vary somewhat. Considering humidity, temperatures feel cold for most of the year with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 14th 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 Islay Island, the hottest months are July, August, and then September. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 64°F (17.8°C) with temperatures rarely dropping below 51.3°F (10.7°C) at night.

Islay Island Temperatures (Fahrenheit)


Islay Island 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.

Islay Island Perceived Temperature (F)


Islay Island Perceived Temperature (C)



Average Islay Island 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 45.8 42 37
Feb 46.3 41.8 36.6
Mar 48.6 43.2 37.1
Apr 53.5 46.7 39.3
May 56.9 50.5 43.7
Jun 60.9 54.4 47.2
Jul 63.2 57 50.7
Aug 62.3 56.7 50.9
Sep 60.1 54.8 49.1
Oct 56 51.2 45.2
Nov 50.6 46.4 40.6
Dec 46.8 42.5 36.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 7.7 5.6 2.8
Feb 7.9 5.4 2.6
Mar 9.2 6.2 2.8
Apr 11.9 8.2 4.1
May 13.8 10.3 6.5
Jun 16.1 12.4 8.4
Jul 17.3 13.9 10.4
Aug 16.8 13.7 10.5
Sep 15.6 12.7 9.5
Oct 13.3 10.7 7.3
Nov 10.3 8 4.8
Dec 8.2 5.8 2.6



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Islay Island are April, June, and then May. 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 late October with an average of 4 days of significant precipitation the week of October 22nd.

When can you find snow in Islay Island? 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 Islay Island.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 53% 0 6.1
Feb 43% 0 4.4
Mar 35% 0 3.5
Apr 26% 0 2.6
May 32% 0 3.4
Jun 27% 0 3.2
Jul 34% 0 3.7
Aug 41% 0 4.6
Sep 34% 0 3.4
Oct 46% 0 5.7
Nov 53% 0 6.1
Dec 52% 0 5.6

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 53 0 15.5
Feb 43 0 11.2
Mar 35 0 8.9
Apr 26 0 6.6
May 32 0 8.6
Jun 27 0 8.1
Jul 34 0 9.4
Aug 41 0 11.7
Sep 34 0 8.6
Oct 46 0 14.5
Nov 53 0 15.5
Dec 52 0 14.2


Humidity and Wind

Islay Island has some extremely humid months, and high humidity throughout the year. The least humid month is May (73.1% relative humidity), and the most humid month is August (82.7%).

Wind in Islay Island is usually stronger than many places. The windiest month is January, followed by December and November. January’s average wind speed of around 14.9 knots (17.1 MPH or 27.5 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 23.9 knots, which is considered a strong breeze.

Relative Humidity (%)

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

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 14.9 Significant breeze 22.8 Very strong breeze
Feb 12.7 Significant breeze 19.9 Strong breeze
Mar 13.3 Significant breeze 20.2 Very strong breeze
Apr 11.4 Significant breeze 17.8 Strong breeze
May 12 Significant breeze 18.4 Very strong breeze
Jun 9.9 Gentle breeze 15.8 Significant breeze
Jul 9.8 Gentle breeze 15.6 Very strong breeze
Aug 10.5 Gentle breeze 16.4 Significant breeze
Sep 11.6 Significant breeze 17.4 Very strong breeze
Oct 12.4 Significant breeze 19 Strong breeze
Nov 13.6 Significant breeze 21.2 Very strong breeze
Dec 14.2 Significant breeze 22.2 Very strong breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 81.4%
Feb 82.4%
Mar 77.5%
Apr 73.7%
May 73.1%
Jun 77.1%
Jul 81%
Aug 82.7%
Sep 81.7%
Oct 80.3%
Nov 80.5%
Dec 80.3%


Is it Safe to Travel to Islay Island?

Our best data indicates this area is somewhat safe. As of Oct 07, 2019 there are travel warnings for the United Kingdom; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 06, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Islay Island, the United Kingdom is July, followed by January and August. 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 Islay Island in April. 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 71.3 in April means 71.3% of the tourists vs. July.



Overall Islay Island Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 60.2°F (15.7°C) and 47.5°F (8.6°C) with warmer temperatures in the later months. Rain is somewhat common with 8 to 11 days of significant precipitation per month. Spring is the slowest 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 8 to 13 days of precipitation per month. June – August is the busiest season for tourism in Islay Island, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 61.1°F (16.2°C) and 47.3°F (8.5°C), which will feel chilly given the humidity and wind. It rains or snows a great amount: 10 to 16 days per month. Tourism is fairly slow 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 Islay Island to be enjoyable for warm weather travelers. The average high during this season is between 47.8°F (8.8°C) and 44.8°F (7.1°C). On average, it rains or snows a very great amount: 12 to 16 times per month. These times of year are the second busiest with tourists.


Best Times to Travelthe United Kingdom › Islay Island, the United Kingdom