Weather in May 2025

New Castle weather in May 2025

°C °F

The average weather in New Castle in May

The temperatures in New Castle in May are quite cold with temperatures between 9°C and 22°C, warm clothes are a must.

You can expect rain for roughly half of the month of May in New Castle. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.

Our weather forecast can give you a great sense of what weather to expect in New Castle in May 2025.

If you’re planning to visit New Castle in the near future, we highly recommend that you review the 14 day weather forecast for New Castle before you arrive.

Temperatures
22° / 9°
Rainy Days
10
Snowy Days
0
Dry Days
21
Rainfall
172
mm
Sun Hours
5.7
Hrs

Explore the weather in New Castle in other months

New Castle annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 0° / -8° 7 4 21 126 mm
Awful
February 2° / -7° 7 4 18 126 mm
Awful
March 8° / -2° 9 12 10 136 mm
Awful
April 14° / 4° 11 15 5 178 mm
Bad
May 22° / 9° 10 21 0 172 mm
Ok
June 26° / 13° 9 21 0 185 mm
Good
July 28° / 16° 10 21 0 183 mm
Good
August 28° / 15° 8 23 0 134 mm
Good
September 24° / 12° 6 24 0 130 mm
Perfect
October 17° / 6° 8 23 0 130 mm
Ok
November 9° / 0° 7 16 7 105 mm
Awful
December 4° / -3° 9 8 15 130 mm
Awful

Weather in New Castle in May - FAQ

What is the average temperature in New Castle in May?
The average temperature in New Castle in May is 9/22° C.
What is the chance of rain in New Castle in May?
On average, there are 10 rainy days in New Castle during May.
Weather wise, is May a good time to visit New Castle?
The weather in New Castle in May is ok.
Can it snow in New Castle in May?
On average, there are 0 snowy days in New Castle in May.
More about the weather in New Castle