8 to 18°C
temperature
1955 hours
sunshine per day
409 mm
rain
168 days
dry
193 days
rain
4 days
snow

Climate of Shannon

Shannon has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Shannon is 13° degrees and there is about 407 mm of rain in a year. It is dry for 129 days a year with an average humidity of 87% and an UV-index of 3.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 8°C and 18°C
  • Night:the average nighttime temperature is between 3°C and 11°C
  • Sea temperature: the sea temperature is between 10°C and 17°C
  • Rain: it rains 193 days and there is a total of approximately 409 mm rainfall
  • Snow: it snows an average of 4 days per year
  • Sun hours: throughout the year there are 1955 sun hours
Maximum temperature: between 8°C and 18°C
Warmest month: 18°C in July
Coldest month: 8°C in January
Night temperature: between 3°C and 11°C
Sea temperature: between 10°C and 17°C
Dry days: 168 days
Days with rain: 193 days
Days with snow: 4 days
Total rain sum: 409 mm
Hours of sunshine: 1955 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Shannon.

Precipitation graph

This graph shows the average amount of rainfall per month for Shannon.

Climate table of Shannon

In this climate table you can see at a glance what the average weather per month is for Shannon. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Shannon might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 8 8 10 12 14 17 18 17 16 14 10 8
Night temp. (°C) 3 3 3 4 7 9 11 11 9 8 5 4
Water temp. (°C) 11 10 10 12 12 15 17 17 17 15 14 12
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 36 32 35 24 30 37 33 29 25 30 45 53
Days with rain 16 14 14 15 18 17 20 19 14 15 15 16
Days with snow 1 1 1 - - - - - - - - 1
Dry days 14 13 16 15 13 13 11 12 16 16 15 14
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 4 4 5 7 6 8 6 6 6 4 4 4
Wind force (Bft) 3 3 3 3 3 3 3 3 3 3 3 3
UV-index 2 2 2 3 3 4 3 4 3 3 2 2

Best time to visit Shannon

The best time to visit Shannon in Ireland is July. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Shannon is 18°C in July and the lowest is 8°C in January. The maximum water temperature is 17°C and the lowest water temperature is 10°C.

Climate of Shannon by month

What is the average climate in a given month for Shannon? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

Shannon weather experiences

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