May weather forecast
Achill Sound, Ireland

May

Weather in May

The last month of the spring, May, is a refreshing month in Achill Sound, Ireland, with an average temperature fluctuating between 13.1°C (55.6°F) and 7.8°C (46°F).

Temperature

Welcoming May, Achill Sound notes an average high-temperature of a mild 13.1°C (55.6°F), nearly consistent with April's 11.2°C (52.2°F). The average nighttime temperature lowers to a frosty 7.8°C (46°F) throughout May.

Humidity

In Achill Sound, the average relative humidity in May is 82%.

Rainfall

In Achill Sound, Ireland, during May, the rain falls for 17.8 days and regularly aggregates up to 29mm (1.14") of precipitation. Throughout the year, there are 210.4 rainfall days, and 483mm (19.02") of precipitation is accumulated.

Snowfall

In Achill Sound, Ireland, snow does not fall in May through September.

Daylight

In May, the average length of the day in Achill Sound, Ireland, is 16h and 0min.
On the first day of May, sunrise is at 6:01 am and sunset at 9:11 pm. On the last day of the month, sunrise is at 5:14 am and sunset at 9:59 pm IST.

Sunshine

The average sunshine in May in Achill Sound is 6.5h.

UV index

The months with the highest UV index in Achill Sound are May and June, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 4 during May, leads to the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Frequently asked questions

What are May temperatures in Achill Sound?
The average high-temperature and low-temperature in Achill Sound, Ireland, during May are 13.1°C (55.6°F) and 7.8°C (46°F) respectively.
What is the average humidity in May in Achill Sound?
In Achill Sound, Ireland, the average relative humidity in May is 82%.
How much does it rain in Achill Sound in May?
In Achill Sound, Ireland, in May, during 17.8 rainfall days, 29mm (1.14") of precipitation is typically accumulated.
When it does not snow in Achill Sound?
May through September are months without snowfall.
Does it snow in Achill Sound in May?
In May, in Achill Sound, Ireland, it doesn't snow. April is the latest month when it typically snows.
How many hours of daylight does Achill Sound have in May?
The average day length in May in Achill Sound, Ireland, is 16h and 0min.
When are sunrise and sunset in May in Achill Sound?
In May, on the first day of the month, sunrise is at 6:01 am and sunset at 9:11 pm. On the last day of the month, sunrise is at 5:14 am and sunset at 9:59 pm IST.
How many hours of sunshine does Achill Sound have in May?
In May, the average sunshine duration is 6.5h.
What are the months with the highest UV index in Achill Sound?
May and June, with an average maximum UV index of 4, are months with the highest UV index.
What is the UV index intensity in May in Achill Sound?
The average daily maximum UV index in May in Achill Sound, Ireland, is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May
Achill Sound, Ireland
  • Average high temperature in May: 13.1°C

The warmest month (with the highest average high temperature) is August (16°C).
The month with the lowest average high temperature is January (7.6°C).

  • Average low temperature in May: 7.8°C

The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is February (4.2°C).

Average pressure in May
Achill Sound, Ireland
  • Average pressure in May: 1015.4mbar

The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is November (1007.2mbar).

Average wind speed in May
Achill Sound, Ireland
  • Average wind speed in May: 18.8km/h

The windiest month (with the highest average wind speed) is January (25.1km/h).
The calmest month (with the lowest average wind speed) is July (15.6km/h).

Average humidity in May
Achill Sound, Ireland
  • Average humidity in May: 82%

The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is April (81%).

Average rainfall in May
Achill Sound, Ireland
  • Average rainfall in May: 29mm

The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (25mm).

Average rainfall days in May
Achill Sound, Ireland
  • Average rainfall days in May: 17.8 days

The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is February (14.8 days).

Average snowfall in May
Achill Sound, Ireland
  • Average snowfall in May: 0mm

The month with the highest snowfall is February (23mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in May
Achill Sound, Ireland
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Achill Sound, Ireland
  • Average daylight in May: 16h and 0min

The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).

  • Average sunshine in May: 6h and 3min

The month with the most sunshine is June (Average sunshine: 7h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 30min).

Average sunshine days in May
Achill Sound, Ireland
  • Average sunshine days in May: 8.7 days

The month with the most sunshine days is December (9.7 days).
The month with the least sunshine days is August (4.2 days).

Average UV index in May
Achill Sound, Ireland
  • Average UV index in May: 4

The months with the highest UV index are May and June (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in May
Achill Sound, Ireland
  • Average cloud cover in May: 60

The months with the most cloud cover are January, July and August (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 58).

Average visibility in May
Achill Sound, Ireland
  • Average visibility in May: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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