July Weather in Castletown, United Kingdom

Last updated: August 27, 2025

In Castletown, United Kingdom, the average temperature in July hovers around 14°C (58°F), with minimum temperatures dipping to 6°C (43°F) and maximums reaching up to 25°C (78°F). During this time, you can expect approximately 74 mm (2.9 in) of precipitation spread over about 17 days, contributing to an average humidity level of 87%.

July Temperature in Castletown

In July in Castletown, the average temperature is 14°C (58°F). The maximum can reach 25°C (78°F), while the minimum can drop to as low as 6°C (43°F). This makes Castletown a comfortable destination for travelers seeking mild weather.

July Weather in Castletown: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Castletown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castletown, July typically has an average temperature of 14°C (58°F), with highs reaching up to 25°C (78°F) and lows dropping to around 6°C (43°F).

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

July Precipitation in Castletown

In Castletown in July, the precipitation amount is 74 mm (2.9 in) distributed over 17 days.

July Precipitation Trends in Castletown

The chart displays monthly precipitation patterns in Castletown, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Castletown, July typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 17 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Castletown

In Castletown in July humidity is 87%. With an average temperature of 14°C (58°F), this humidity feels like walking through a thick, warm blanket, making travel feel more exhausting and sticky, as sweat clings to the skin and the air feels heavy.

July Average Humidity in Castletown

This chart illustrates the average monthly humidity levels in Castletown, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Castletown is approximately 87%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Castletown

In Castletown in July, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Castletown.

Maximum UV Index Levels in Castletown for July

The chart shows the monthly maximum UV Index (UVI) for Castletown in July, 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 July, the maximum UV index in Castletown typically reaches 7, which falls under the high exposure category.

Data source: Castletown July 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 July Weather in Castletown Compares to Other Months

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

This table compares monthly weather conditions in Castletown, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	57 mm (2.2 inches)	82%	low
February Weather	5°C (42°F)	62 mm (2.5 inches)	81%	low
March Weather	6°C (43°F)	72 mm (2.8 inches)	81%	moderate
April Weather	7°C (45°F)	55 mm (2.2 inches)	81%	moderate
May Weather	10°C (50°F)	67 mm (2.6 inches)	83%	moderate
June Weather	13°C (55°F)	70 mm (2.8 inches)	84%	high
July Weather	14°C (58°F)	74 mm (2.9 inches)	87%	high
August Weather	14°C (58°F)	79 mm (3.1 inches)	86%	high
September Weather	13°C (55°F)	109 mm (4.3 inches)	88%	moderate
October Weather	10°C (51°F)	112 mm (4.4 inches)	87%	moderate
November Weather	8°C (46°F)	92 mm (3.6 inches)	87%	low
December Weather	6°C (43°F)	71 mm (2.8 inches)	80%	low