June Weather in Newcastle, United States

Last updated: June 24, 2025

In June, the average temperature in Newcastle, United States hovers around 20°C (68°F), offering a comfortable climate. However, be prepared for a range of temperatures, with a minimum of 3°C (38°F) and a scorching maximum of 39°C (102°F). While you enjoy the weather, expect 34 mm (1.3 in) of precipitation spread over 7 days, contributing to an overall average humidity of 84%.

June Temperature in Newcastle

In June in Newcastle, the average temperature is 20°C (68°F). Maximum temperatures can reach 39°C (102°F), while minimums can drop as low as 3°C (38°F). Travelers should be prepared for a wide range of temperatures during their visit.

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

The chart illustrates June 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, June typically has an average temperature of 20°C (68°F), with highs reaching up to 39°C (102°F) and lows dropping to around 3°C (38°F).

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

June Precipitation in Newcastle

In Newcastle in June, the total precipitation amount is 34 mm (1.3 in) over the course of 7 days.

June Precipitation Trends in Newcastle

The chart displays monthly precipitation patterns in Newcastle, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Newcastle, June typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 7 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

June Humidity in Newcastle

In Newcastle in June humidity is 84%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket, making travel a challenge as the air clings to your skin, and every step feels heavier in the mugginess.

June Average Humidity in Newcastle

This chart illustrates the average monthly humidity levels in Newcastle, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Newcastle is approximately 84%, offering insight into how humid the weather typically is during this month.

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

June UV Index in Newcastle

In Newcastle in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Newcastle.

Maximum UV Index Levels in Newcastle for June

The chart shows the monthly maximum UV Index (UVI) for Newcastle in June, 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 June, the maximum UV index in Newcastle typically reaches 11, which falls under the extreme exposure category.

Data source: Newcastle June 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 June 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 June’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 June’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