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WalesThe weather in May in Gwynedd
It's cool to moderate in May in Gwynedd with an average temperature of 15°C. Temperatures this month range from a low of 13°C to a high of 18°C. At night, you can expect temperatures between 6°C and 10°C.
Looking for sun and warm weather? May isn’t a good month to be in Gwynedd. The temperatures are too low for a warm stay this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Gwynedd, Wales. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 27°C in 2017, Gwynedd reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 8°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 0°C to a highest value of 14°C.
Rainfall amount
In May, there is an average of 62 mm of precipitation, spread over 10 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in May for Gwynedd
Click on any day in May to get detailed info about the usual weather on that day in Gwynedd. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Gwynedd | New York | |
|---|---|---|
| Average temperature | 15°C | 22°C |
| Max. temperature | 18°C | 28°C |
| Min. temperature | 6°C | -5°C |
| Total precipitation | 62 mm | 105 mm |
| Rainy days | 10 days | 14 days |
Start of May
The month of May starts in Gwynedd with cool temps, averaging around 15°C during the day and nights around 8°C.
Mid May
By mid-May, daytime temps rise to around 16°C, with nights around 9°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of May
By the end of May, the average daytime temperature in Gwynedd is around 17°C, while nighttime temps are about 10°C. A shower might pop up, but overall, the weather will be dry and sunny.
Find affordable vacations to Gwynedd
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Gwynedd for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Gwynedd, Wales. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Gwynedd
Temperature in May in Gwynedd over the years
Precipitation charts
These charts show the average amount of precipitation in May in Gwynedd, Wales. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Gwynedd
Total precipitation in May in Gwynedd over the years
Daily UV index in May in Gwynedd
This chart shows the average daily UV index in May in Gwynedd, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Gwynedd
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Average weather in Gwynedd by month
Click on a month below to see detailed weather info for Gwynedd. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.