The best times to visit Portumna for ideal weather are
June 18th 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.
Portumna Travel Guide
Other Portumna Travel Info
Weather in Portumna
Average temperatures in Portumna 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 15th 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 Portumna, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 67.6°F (19.8°C) with temperatures rarely dropping below 52.8°F (11.6°C) at night.
Portumna Temperatures (Fahrenheit)
Portumna 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.
Portumna Perceived Temperature (F)
Portumna Perceived Temperature (C)
Average Portumna 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 Portumna are March, April, and then August. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late August to early September. For example, on the week of August 27th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late December with an average of 4 days of significant precipitation the week of December 24th.
When can you find snow in Portumna? 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 Portumna.
Snow on the Ground
The graph below shows the average snow on the ground in Portumna (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
Portumna has some extremely humid months, and high humidity throughout the year. The least humid month is April (70.6% relative humidity), and the most humid month is December (85%).
Wind in Portumna is usually moderate. The windiest month is December, followed by January and November. December’s average wind speed of around 9.7 knots (11.2 MPH or 18 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 late December where average top sustained speeds reach 17.6 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Portumna.
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||9.1||Gentle breeze||15||Significant breeze|
|Feb||8.7||Gentle breeze||14.4||Significant breeze|
|Mar||8.2||Gentle breeze||13.4||Significant breeze|
|Apr||8.2||Gentle breeze||13.5||Significant breeze|
|May||8.8||Gentle breeze||13.9||Significant breeze|
|Jun||7.2||Gentle breeze||11.9||Significant breeze|
|Jul||7.1||Gentle breeze||11.8||Significant breeze|
|Aug||7.5||Gentle breeze||12.2||Significant breeze|
|Sep||7.8||Gentle breeze||12.3||Significant breeze|
|Oct||8.2||Gentle breeze||13.5||Significant breeze|
|Nov||8.9||Gentle breeze||14.5||Significant breeze|
|Dec||9.7||Gentle breeze||15.9||Significant breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Portumna?
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 Portumna, 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 Portumna 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 Portumna Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 61.9°F (16.6°C) and 47.8°F (8.8°C) with warmer temperatures in the later months. Rain is somewhat common with 7 to 9 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see moderate precipitation with 8 to 9 days of precipitation per month. June – August is the busiest season for tourism in Portumna, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 63.7°F (17.6°C) and 46°F (7.8°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 Portumna to be enjoyable for warm weather travelers. The average high during this season is between 47.8°F (8.8°C) and 44.9°F (7.2°C). On average, it rains or snows a great amount: 8 to 14 times per month. These times of year are fairly slow with tourists.