May Weather in Colchester, United States

Last updated: June 24, 2025

In May, the average temperature in Colchester, United States hovers around 18°C (64°F), with variations ranging from a brisk 0°C (32°F) to a sweltering 36°C (96°F). Travelers should prepare for a precipitation amount of 169 mm (6.6 in) over approximately 15 days, contributing to an average humidity of 78%. So, pack accordingly and embrace the diverse climate!

May Temperature in Colchester

In May in Colchester, the average temperature is 18°C (64°F). The maximum can reach 36°C (96°F), and the minimum can be as low as 0°C (32°F). This diverse range of temperatures makes Colchester an exciting destination for travelers seeking both warm and cool weather experiences.

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

The chart illustrates May temperature patterns in Colchester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Colchester, May typically has an average temperature of 18°C (64°F), with highs reaching up to 36°C (96°F) and lows dropping to around 0°C (32°F).

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

May Precipitation in Colchester

In Colchester in May, the precipitation amount is 169 mm (6.6 in) over a span of 15 days.

May Precipitation Trends in Colchester

The chart displays monthly precipitation patterns in Colchester, 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 Colchester, May typically receives around 169 mm (6.6 inches) of precipitation spread over approximately 15 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Colchester

In Colchester in May, humidity is 78%. With an average temperature of 18°C (64°F), this humidity feels like a warm, thick blanket wrapping around you, making traveling feel a bit sticky and sluggish, yet the coolness of the air tempers the intensity, inviting you to explore at a leisurely pace.

May Average Humidity in Colchester

This chart illustrates the average monthly humidity levels in Colchester, 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 Colchester is approximately 78%, 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 Colchester

In Colchester in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Colchester.

Maximum UV Index Levels in Colchester for May

The chart shows the monthly maximum UV Index (UVI) for Colchester 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 Colchester typically reaches 10, which falls under the very high exposure category.

Data source: Colchester 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 Colchester Compares to Other Months

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

This table compares monthly weather conditions in Colchester, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	58 mm (2.3 inches)	81%	moderate
February Weather	-2°C (29°F)	65 mm (2.5 inches)	81%	moderate
March Weather	6°C (42°F)	116 mm (4.6 inches)	81%	high
April Weather	11°C (51°F)	105 mm (4.1 inches)	82%	very high
May Weather	18°C (64°F)	169 mm (6.6 inches)	78%	very high
June Weather	24°C (75°F)	136 mm (5.3 inches)	81%	extreme
July Weather	25°C (78°F)	95 mm (3.7 inches)	79%	very high
August Weather	24°C (75°F)	93 mm (3.7 inches)	77%	very high
September Weather	21°C (70°F)	92 mm (3.6 inches)	78%	very high
October Weather	13°C (56°F)	112 mm (4.4 inches)	78%	high
November Weather	5°C (41°F)	53 mm (2.1 inches)	87%	moderate
December Weather	1°C (35°F)	47 mm (1.9 inches)	84%	low