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May Weather in Slidell, United States

Last updated: June 24, 2025

In May, the average temperature in Slidell, United States is a pleasant 25°C (77°F), with minimums dipping to 14°C (57°F) and maximums soaring to 32°C (89°F). However, be prepared for some rain, as 140 mm (5.5 in) of precipitation may fall over 12 days. With an average humidity of 73%, the climate is both warm and inviting!

May Temperature in Slidell

In May in Slidell, the average temperature is 25°C (77°F), with maximums reaching 32°C (89°F) and minimums dropping to as low as 14°C (57°F). This makes it an ideal time for travelers to enjoy pleasant weather while exploring the outdoor attractions.

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

The chart illustrates May temperature patterns in Slidell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Slidell, May typically has an average temperature of 25°C (77°F), with highs reaching up to 32°C (89°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec545964697781838380746157
Data source: Temperature data for Slidell generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Slidell

In Slidell in May, the total precipitation amount is 140 mm (5.5 in) over the course of 12 days.

May Precipitation Trends in Slidell

The chart displays monthly precipitation patterns in Slidell, 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 Slidell, May typically receives around 140 mm (5.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec981078012614022318922413012760103
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Slidell

In Slidell in May humidity is 73%. With an average temperature of 25°C (77°F), this humidity feels like a warm blanket wrapping around you, making travel a bit sticky but also vibrant and lively, as the air carries the rich scents of the surrounding environment.

May Average Humidity in Slidell

This chart illustrates the average monthly humidity levels in Slidell, 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 Slidell is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%78%73%71%79%78%80%76%83%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Slidell

In Slidell 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 Slidell.

Maximum UV Index Levels in Slidell for May

The chart shows the monthly maximum UV Index (UVI) for Slidell 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 Slidell typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121110864
Data source: Slidell 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 Slidell Compares to Other Months

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

This table compares monthly weather conditions in Slidell, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)98 mm (3.9 inches)82%moderate
February Weather15°C (59°F)107 mm (4.2 inches)80%very high
March Weather18°C (65°F)80 mm (3.1 inches)80%very high
April Weather20°C (69°F)126 mm (5.0 inches)78%extreme
May Weather25°C (77°F)140 mm (5.5 inches)73%extreme
June Weather27°C (81°F)223 mm (8.8 inches)71%extreme
July Weather28°C (83°F)189 mm (7.4 inches)79%extreme
August Weather28°C (83°F)224 mm (8.8 inches)78%extreme
September Weather27°C (80°F)130 mm (5.1 inches)80%very high
October Weather23°C (74°F)126 mm (5.0 inches)76%very high
November Weather16°C (61°F)60 mm (2.3 inches)83%high
December Weather14°C (57°F)103 mm (4.1 inches)87%moderate

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