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Normal weather for Ulster in May

It's pleasantly warm in May in Ulster with an average temperature of 21°C. Temperatures this month range from a low of 15°C to a high of 27°C. At night, you can expect temperatures between 5°C and 15°C.

In May, there is an average of 124 mm of precipitation, spread over 16 days. The wind speed is around 4 Bft, mostly coming from the Southwest.

Ulster in May

New York
Temperature Average Temperature
21°C 22°C
Sun High Temp
27°C 28°C
Sun Low Temp
15°C 17°C
Rain Total Precipitation
124 mm 105 mm
Rain Rainy Days
16 days 14 days

Start of May

The month of May starts in Ulster with mild temps, averaging around 18°C during the day and nights around 8°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.

With the temperature difference between day and night, it’s smart to wear layers. During the day, a shirt, maybe a light sweater, and thin pants will do. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.

Mid May

By mid-May, daytime temps rise to around 22°C, with nights around 9°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

Since it cools down at night, it’s a good idea to wear layers. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.

End of May

By the end of May, the average daytime temperature in Ulster is around 25°C, while nighttime temps are about 13°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

Because temperatures drop in the evening, wearing layers is recommended. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Is May a good time to visit Ulster?

Looking for sun? May isn’t a good month to be in Ulster. The temperature is nice, but there’s too much chance of rain.

Temperature records for Ulster in May

Check out the climate of Ulster for all months and discover the best travel time

Daily Temperature in May in Ulster

This chart shows the average daily high and low temperatures in May for Ulster, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Temperature in May in Ulster

Daily Precipitation in May in Ulster

The chart below shows the average daily precipitation in May for Ulster, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 16 days of precipitation in Ulster.

Daily Precipitation in May in Ulster

Daily UV Index in May in Ulster

This chart shows the average daily UV index in May in Ulster, 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.

Daily UV Index in May in Ulster

Temperature in May in Ulster Over the Years

This chart shows the average temperature in May in Ulster, measured in degrees Celsius, over the past few years.

Temperature in May in Ulster Over the Years

Total Precipitation in May in Ulster Over the Years

This chart shows the average precipitation in May in Ulster, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in May in Ulster Over the Years

Daily Climate in May for Ulster

Click on any day in May to get detailed info about the usual weather on that day in Ulster. Check out the historical temperatures and precipitation over the past 10 years on this day.

Weather experiences in May in Ulster

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Average Weather in Ulster by Month

Click on a month below to see detailed weather info for Ulster. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.


Or check out the climate of Ulster for all months at once

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