May Weather in Newcastle, United States

Last updated: June 24, 2025

The average temperature in Newcastle, United States during May is a comfortable 12°C (54°F), making it a pleasant time to visit. However, be prepared for a wide range of temperatures, as it can drop to a chilly -3°C (27°F) or soar to a balmy 32°C (90°F). Expect 63 mm (2.5 in) of precipitation over approximately 11 days, and with an average humidity of 74%, you might want to pack accordingly for a mix of cozy and warm weather!

May Temperature in Newcastle

In May in Newcastle, the average temperature is 12°C (54°F). Maximums can reach 32°C (90°F), while minimums can drop to as low as -3°C (27°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

May Weather in Newcastle: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Newcastle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newcastle, May typically has an average temperature of 12°C (54°F), with highs reaching up to 32°C (90°F) and lows dropping to around -3°C (27°F).

Data source: Temperature data for Newcastle generated using information from the Copernicus Climate Change Service.

May Precipitation in Newcastle

In Newcastle in May, the precipitation amount is 63 mm (2.5 in) during a total of 11 days.

May Precipitation Trends in Newcastle

The chart displays monthly precipitation patterns in Newcastle, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Newcastle, May typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Newcastle

In Newcastle in May, humidity is 74%. With an average temperature of 12°C (54°F), this humidity feels like a chilly embrace that can dampen your travel experience, making it essential to dress in layers and prepare for an unexpected drizzle while exploring the sights.

May Average Humidity in Newcastle

This chart illustrates the average monthly humidity levels in Newcastle, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Newcastle is approximately 74%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Newcastle

In Newcastle in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Newcastle.

Maximum UV Index Levels in Newcastle for May

The chart shows the monthly maximum UV Index (UVI) for Newcastle in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Newcastle typically reaches 9, which falls under the very high exposure category.

Data source: Newcastle May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How May Weather in Newcastle Compares to Other Months

Weather in Newcastle varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Newcastle, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Newcastle, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	15 mm (0.6 inches)	73%	moderate
February Weather	-6°C (22°F)	24 mm (1.0 inches)	78%	moderate
March Weather	3°C (37°F)	31 mm (1.2 inches)	64%	high
April Weather	6°C (43°F)	46 mm (1.8 inches)	66%	very high
May Weather	12°C (54°F)	63 mm (2.5 inches)	74%	very high
June Weather	20°C (68°F)	34 mm (1.3 inches)	84%	extreme
July Weather	24°C (75°F)	47 mm (1.8 inches)	85%	extreme
August Weather	22°C (71°F)	31 mm (1.2 inches)	85%	very high
September Weather	17°C (63°F)	30 mm (1.2 inches)	76%	very high
October Weather	7°C (44°F)	40 mm (1.6 inches)	71%	high
November Weather	2°C (36°F)	19 mm (0.8 inches)	73%	moderate
December Weather	-3°C (27°F)	24 mm (0.9 inches)	75%	low