May Weather in Delmar, United States

Last updated: June 24, 2025

In May, the average temperature in Delmar, United States is a pleasant 19°C (66°F). Expect a range from a chilly 4°C (40°F) to a warm 34°C (94°F). During this month, anticipate around 121 mm (4.7 in) of precipitation spread over 11 days, with an average humidity of 78%.

May Temperature in Delmar

In May in Delmar, the average temperature is 19°C (66°F). Maximums can reach 34°C (94°F) and minimums can be as low as 4°C (40°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm days and cooler evenings.

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

The chart illustrates May temperature patterns in Delmar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Delmar, May typically has an average temperature of 19°C (66°F), with highs reaching up to 34°C (94°F) and lows dropping to around 4°C (40°F).

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

May Precipitation in Delmar

In Delmar in May, the total precipitation amount reaches 121 mm (4.7 in) over a span of 11 days.

May Precipitation Trends in Delmar

The chart displays monthly precipitation patterns in Delmar, 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 Delmar, May typically receives around 121 mm (4.7 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 Delmar

In Delmar in May, humidity is 78%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making traveling quite uncomfortable unless you're well-prepared with lightweight, breathable clothing and frequent breaks to stay hydrated.

May Average Humidity in Delmar

This chart illustrates the average monthly humidity levels in Delmar, 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 Delmar 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 Delmar

In Delmar 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 Delmar.

Maximum UV Index Levels in Delmar for May

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

Data source: Delmar 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 Delmar Compares to Other Months

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

This table compares monthly weather conditions in Delmar, 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 (39°F)	66 mm (2.6 inches)	84%	moderate
February Weather	6°C (43°F)	93 mm (3.7 inches)	83%	moderate
March Weather	9°C (48°F)	93 mm (3.7 inches)	83%	high
April Weather	14°C (57°F)	87 mm (3.4 inches)	81%	very high
May Weather	19°C (66°F)	121 mm (4.7 inches)	78%	very high
June Weather	24°C (75°F)	127 mm (5.0 inches)	79%	very high
July Weather	27°C (80°F)	158 mm (6.2 inches)	74%	very high
August Weather	26°C (78°F)	165 mm (6.5 inches)	72%	very high
September Weather	23°C (73°F)	104 mm (4.1 inches)	75%	very high
October Weather	18°C (64°F)	122 mm (4.8 inches)	81%	high
November Weather	10°C (50°F)	83 mm (3.3 inches)	85%	moderate
December Weather	6°C (43°F)	98 mm (3.8 inches)	84%	moderate