May Weather in Port Sulphur, United States

Last updated: June 24, 2025

In Port Sulphur, United States, the average temperature in May hovers around 25°C (77°F), making it a pleasant time to visit. Expect a minimum of 17°C (62°F) and a maximum of 30°C (86°F) during this month. With 119 mm (4.7 in) of precipitation spread across 10 days, a light raincoat might come in handy. Additionally, the average humidity level is a comfortable 74%, ensuring a refreshing atmosphere throughout your stay.

May Temperature in Port Sulphur

In May in Port Sulphur, the average temperature is 25°C (77°F), with maximums reaching 30°C (86°F) and minimums dropping as low as 17°C (62°F). This pleasant climate makes it a perfect time for outdoor sightseeing and exploration.

May Weather in Port Sulphur: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Port Sulphur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Sulphur, May typically has an average temperature of 25°C (77°F), with highs reaching up to 30°C (86°F) and lows dropping to around 17°C (62°F).

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

May Precipitation in Port Sulphur

In Port Sulphur in May, the total precipitation amount is 119 mm (4.7 in) over the span of 10 days.

May Precipitation Trends in Port Sulphur

The chart displays monthly precipitation patterns in Port Sulphur, 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 Port Sulphur, May typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 10 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 Port Sulphur

In Port Sulphur in May humidity is 74%. With an average temperature of 25°C (77°F), this humidity feels like a warm, muggy blanket wrapping around you, making travel a bit more challenging as you find yourself sticky and in need of frequent breaks to hydrate and cool down.

May Average Humidity in Port Sulphur

This chart illustrates the average monthly humidity levels in Port Sulphur, 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 Port Sulphur 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 Port Sulphur

In Port Sulphur in May, 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 Port Sulphur.

Maximum UV Index Levels in Port Sulphur for May

The chart shows the monthly maximum UV Index (UVI) for Port Sulphur 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 Port Sulphur typically reaches 11, which falls under the extreme exposure category.

Data source: Port Sulphur 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 Port Sulphur Compares to Other Months

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

This table compares monthly weather conditions in Port Sulphur, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (57°F)	106 mm (4.2 inches)	80%	moderate
February Weather	16°C (61°F)	91 mm (3.6 inches)	79%	very high
March Weather	18°C (65°F)	69 mm (2.7 inches)	79%	very high
April Weather	21°C (70°F)	107 mm (4.2 inches)	80%	extreme
May Weather	25°C (77°F)	119 mm (4.7 inches)	74%	extreme
June Weather	27°C (81°F)	195 mm (7.7 inches)	72%	extreme
July Weather	28°C (83°F)	238 mm (9.4 inches)	75%	extreme
August Weather	28°C (83°F)	272 mm (10.7 inches)	74%	extreme
September Weather	27°C (81°F)	162 mm (6.4 inches)	79%	extreme
October Weather	24°C (76°F)	124 mm (4.9 inches)	77%	very high
November Weather	19°C (66°F)	52 mm (2.1 inches)	81%	high
December Weather	16°C (61°F)	113 mm (4.4 inches)	83%	moderate