Your trips
Organize your trips easily with tabs
New York
– Shannon
Any date
+ Search
When is the best time to visit Shannon?
In general the best time to visit Shannon is probably July, when the weather is usually great. The hottest months are July, August, September, while the coldest months are January, February, December.
Depending on the activities you want to experience, you may choose different months to visit:
- In general, it’s pleasant to walk and do outdoor activities during July - August.
- If you want to avoid wet weather, then your choice is January, November, December with the lowest chance of rain.
Average weather in Shannon in different months
This is the average weather in Shannon for each month based on historic data:
In January, February, March, April, May, June, July, August, September, October, November, December the weather is average. Expect around 233 rainy days, and the precipitation amounts to approximately 102 mm in October.
Climate in Shannon
Here is the detailed breakdown of the climate in Shannon for each month:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum Temperature | |||||||||||
| +57°F | +59°F | +66°F | +72°F | +79°F | +86°F | +86°F | +82°F | +81°F | +70°F | +63°F | +59°F |
| Average Maximum Temperature | |||||||||||
| +46°F | +48°F | +50°F | +54°F | +59°F | +63°F | +66°F | +64°F | +63°F | +55°F | +50°F | +48°F |
| Minimum Temperature | |||||||||||
| +18°F | +23°F | +21°F | +25°F | +30°F | +37°F | +43°F | +39°F | +34°F | +27°F | +23°F | +18°F |
| Avg. water temperature | |||||||||||
| - | - | - | - | - | - | - | - | - | - | - | - |
| Humidity, % | |||||||||||
| 88 | 85 | 83 | 80 | 79 | 81 | 82 | 84 | 85 | 87 | 88 | 89 |
| Rain, mm | |||||||||||
| 93 | 81 | 82 | 68 | 78 | 77 | 75 | 91 | 80 | 102 | 95 | 102 |
| Snow, mm | |||||||||||
| 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Average wind speed, m/s | |||||||||||
| 4 | 4 | 4 | 3 | 4 | 3 | 3 | 3 | 3 | 4 | 4 | 4 |
| Sunny Days | |||||||||||
| 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Cloud Days | |||||||||||
| 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 9 | 11 |
| Rainy Days | |||||||||||
| 18 | 16 | 19 | 19 | 20 | 20 | 21 | 22 | 19 | 20 | 20 | 19 |
| Snowy Days | |||||||||||
| 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
Average Temperature
Here are the average maximum and minimum temperatures in Shannon during the whole year:
The hottest month in Shannon is July with average maximum temperature going up to +66°F. The coldest month is January with the lowest temperatures of +37°F.
Humidity
The temperature feels different depending on humidity. Here is how humidity in Shannon looks throughout the year, in %:
The most humid month in Shannon is December with average humidity going up to 89%. The least humid month is May with an average humidity of 79%.
Rain
Amount of rainfall in mm. in Shannon during the whole year based on historical data:
The sunniest and driest month is April with approximately 2 sunny days and a total precipitation of around 68 mm. The rainiest and wettest month is December with approximately 19 rainy days and 102 mm of total precipitation.
Snow
Amount of snow in mm. in Shannon during the whole year based on historical data:
The snowiest month is March with approximately 1 snowy days.
FAQ
Frequently asked questions about the weather in Shannon:
What is the hottest month in Shannon?
The hottest month in Shannon is July with average maximum temperature of +66°F.
What is the coldest month in Shannon?
The coldest month in Shannon is January with minimum temperatures of +37°F.
Is Shannon worth visiting in winter?
Winter in Shannon could be a good time to visit, as the weather is generally ok.
When does it rain the least in Shannon?
if you're looking to visit Shannon when it rains the least, you should plan your trip for December, October, November. During this time, rainfall is rare with the driest month being April with only 68 mm of rain.
Other cities in Ireland
Check out the weather for other cities in Ireland.
Monthly weather in Shannon
Source of the data
For this page, we’ve looked at the typical weather in Shannon, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.