May Weather in Bluffton, United States

Last updated: June 24, 2025

In Bluffton, United States, the average temperature in May is a comfortable 23°C (74°F), with lows dipping to a minimum of 12°C (53°F) and highs reaching up to 34°C (94°F). Expect precipitation of around 89 mm (3.5 in) spread over about 10 days, contributing to an average humidity level of 75%.

May Temperature in Bluffton

In May in Bluffton, the weather is generally pleasant, making it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates May temperature patterns in Bluffton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bluffton, May typically has an average temperature of 23°C (74°F), with highs reaching up to 34°C (94°F) and lows dropping to around 12°C (53°F).

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

May Precipitation in Bluffton

In Bluffton in May, the precipitation amount is 89 mm (3.5 in) over a period of 10 days.

May Precipitation Trends in Bluffton

The chart displays monthly precipitation patterns in Bluffton, 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 Bluffton, May typically receives around 89 mm (3.5 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 Bluffton

In Bluffton in May, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.

May Average Humidity in Bluffton

This chart illustrates the average monthly humidity levels in Bluffton, 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 Bluffton is approximately 75%, 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 Bluffton

In Bluffton 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 Bluffton.

Maximum UV Index Levels in Bluffton for May

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

Data source: Bluffton 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 Bluffton Compares to Other Months

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

This table compares monthly weather conditions in Bluffton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (53°F)	61 mm (2.4 inches)	86%	moderate
February Weather	14°C (57°F)	80 mm (3.1 inches)	81%	high
March Weather	16°C (61°F)	68 mm (2.7 inches)	81%	very high
April Weather	19°C (67°F)	85 mm (3.4 inches)	79%	very high
May Weather	23°C (74°F)	89 mm (3.5 inches)	75%	extreme
June Weather	26°C (79°F)	122 mm (4.8 inches)	75%	extreme
July Weather	28°C (82°F)	156 mm (6.1 inches)	80%	extreme
August Weather	27°C (82°F)	180 mm (7.1 inches)	81%	extreme
September Weather	26°C (79°F)	127 mm (5.0 inches)	83%	very high
October Weather	23°C (73°F)	88 mm (3.5 inches)	78%	very high
November Weather	16°C (61°F)	90 mm (3.5 inches)	85%	high
December Weather	13°C (55°F)	125 mm (4.9 inches)	87%	moderate