May weather forecastCastlegar, Ireland

May

Weather in May

May, the last month of the spring in Castlegar, is a refreshing month, with an average temperature varying between 13.9°C (57°F) and 7.4°C (45.3°F).

Temperature

May reports an average high-temperature of a mild 13.9°C (57°F), slightly varied from April's 12°C (53.6°F). Throughout May, the nighttime temperature averages to a chilly 7.4°C (45.3°F).

Humidity

The average relative humidity in May in Castlegar, Ireland, is 84%.

Rainfall

In May, the rain falls for 20.4 days. Throughout May, 37mm (1.46") of precipitation is accumulated. In Castlegar, during the entire year, the rain falls for 235.1 days and collects up to 619mm (24.37") of precipitation.

Snowfall

In Castlegar, snow does not fall in April through November.

Daylight

The average length of the day in May in Castlegar, Ireland, is 15h and 54min.
On the first day of May in Castlegar, sunrise is at 6:00 am and sunset at 9:05 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 9:52 pm IST.

Sunshine

The average sunshine in May in Castlegar is 6.2h.

UV index

May through July, with an average maximum UV index of 4, are months with the highest UV index in Castlegar. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 4 in May translates into these instructions:
Exercise prevention - Warding off sunburn is urged. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

The high-temperature, in May, in Castlegar, is 13.9°C (57°F), while the low-temperature averages to 7.4°C (45.3°F).

In May, the average relative humidity in Castlegar is 84%.

In May, in Castlegar, Ireland, the rain falls for 20.4 days. Throughout May, 37mm (1.46") of precipitation is accumulated.

April through November are months without snowfall.

The average day length in May in Castlegar, Ireland, is 15h and 54min.

On the first day of May in Castlegar, Ireland, sunrise is at 6:00 am and sunset at 9:05 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 9:52 pm IST.

In May, the average sunshine duration is 6.2h.

The months with the highest UV index are May through July, with an average maximum UV index of 4.

In May, the average daily maximum UV index in Castlegar, Ireland, is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Castlegar, Ireland

  • Average high temperature in May: 13.9°C

The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (7.9°C).

  • Average low temperature in May: 7.4°C

The month with the highest average low temperature is August (11.4°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).

Average pressure in May
Castlegar, Ireland

  • Average pressure in May: 1015.7mbar

The month with the highest atmospheric pressure is May (1015.7mbar).
The month with the lowest atmospheric pressure is November (1007.7mbar).

Average wind speed in May
Castlegar, Ireland

  • Average wind speed in May: 17km/h

The windiest months (with the highest average wind speed) are February and December (22.2km/h).
The calmest month (with the lowest average wind speed) is July (14.8km/h).

Average humidity in May
Castlegar, Ireland

  • Average humidity in May: 84%

The months with the highest relative humidity are January, July, August, September, October, November and December (87%).
The months with the lowest relative humidity are March and April (83%).

Average rainfall in May
Castlegar, Ireland

  • Average rainfall in May: 37mm

The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is April (36mm).

Average rainfall days in May
Castlegar, Ireland

  • Average rainfall days in May: 20.4 days

The month with the highest number of rainy days is August (23.2 days).
The month with the least rainy days is April (17.3 days).

Average snowfall in May
Castlegar, Ireland

  • Average snowfall in May: 0mm

The month with the highest snowfall is January (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in May
Castlegar, Ireland

  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is March (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Castlegar, Ireland

  • Average daylight in May: 15h and 54min

The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in May: 6h and 12min

The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).

Average sunshine days in May
Castlegar, Ireland

  • Average sunshine days in May: 6.6 days

The month with the most sunshine days is March (9.4 days).
The month with the least sunshine days is August (4.1 days).

Average UV index in May
Castlegar, Ireland

  • Average UV index in May: 4

The months with the highest UV index are May, June and July (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
Castlegar, Ireland

  • Average cloud cover in May: 61

The month with the most cloud cover is July (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 56).

Average visibility in May
Castlegar, Ireland

  • Average visibility in May: 9km

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).