May weather forecastAberystwyth, United Kingdom
May
Weather in May
May, the last month of the spring in Aberystwyth, is a mild month, with an average temperature fluctuating between 13.5°C (56.3°F) and 7.5°C (45.5°F).Temperature
Aberystwyth transitions into May recording an average high-temperature of a moderate 13.5°C (56.3°F), closely aligning with the preceding month's temperature. An average low-temperature of 7.5°C (45.5°F) is observed in Aberystwyth during the May nights.Humidity
In Aberystwyth, the average relative humidity in May is 83%.Rainfall
May is the month with the least rainfall in Aberystwyth. Rain falls for 11.1 days and accumulates 14mm (0.55") of precipitation.Snowfall
May through November are months without snowfall.Sea temperature
In May, the average sea temperature in Aberystwyth is 10.9°C (51.6°F).Note: Without suitable protection, venturing into 10.9°C (51.6°F) waters cooler than 10°C (50°F) can lead to pronounced cold shock and rapid breaths.
Daylight
In Aberystwyth, the average length of the day in May is 15h and 46min.On the first day of May, sunrise is at 5:43 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 9:28 pm BST.
Sunshine
The month with the most sunshine is May, with an average of 7.9h of sunshine.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Aberystwyth. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 4 in May interprets into the following advice:
Adopt protective measures - It is advised to guard against sun damage. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Aberystwyth, United Kingdom
- Average high temperature in May: 13.5°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 (6.8°C).
- Average low temperature in May: 7.5°C
The month with the highest average low temperature is August (12.5°C).
The coldest month (with the lowest average low temperature) is February (3.6°C).
Average pressure in May
Aberystwyth, United Kingdom
- Average pressure in May: 1016.4mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in May
Aberystwyth, United Kingdom
- Average wind speed in May: 16.1km/h
The windiest month (with the highest average wind speed) is December (23.6km/h).
The calmest month (with the lowest average wind speed) is June (14.5km/h).
Average humidity in May
Aberystwyth, United Kingdom
- Average humidity in May: 83%
The month with the highest relative humidity is August (87%).
The month with the lowest relative humidity is April (82%).
Average rainfall in May
Aberystwyth, United Kingdom
- Average rainfall in May: 14mm
The wettest month (with the highest rainfall) is December (39mm).
The driest month (with the least rainfall) is May (14mm).
Average rainfall days in May
Aberystwyth, United Kingdom
- Average rainfall days in May: 11.1 days
The month with the highest number of rainy days is December (14.7 days).
The months with the least rainy days are April and May (11.1 days).
Average snowfall in May
Aberystwyth, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Aberystwyth, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Aberystwyth, United Kingdom
- Average sea temperature in May: 10.9°C
The best months for swimming (with the highest average sea temperature) are August and September (15.8°C).
The coldest month (with the lowest average sea temperature) is March (8.3°C).
Average daylight in May /
Average sunshine in May
Aberystwyth, United Kingdom
- Average daylight in May: 15h and 48min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in May: 7h and 54min
The month with the most sunshine is May (Average sunshine: 7h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in May
Aberystwyth, United Kingdom
- Average sunshine days in May: 15.6 days
The month with the most sunshine days is March (16.5 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in May
Aberystwyth, United Kingdom
- Average UV index in May: 4
The months with the highest UV index are May, June, July, August and September (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
Aberystwyth, United Kingdom
- Average cloud cover in May: 49
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and May (Cloud cover 49).
Average visibility in May
Aberystwyth, United Kingdom
- Average visibility in May: 9km
The months with the highest visibility are October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August and September (9km).





