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May Weather in Myrtle, United States

Last updated: June 24, 2025

In Myrtle, United States, the average temperature in May hovers around 22°C (72°F), offering a pleasant climate. Expect a minimum chill of 6°C (43°F) and the warmth can peak at 35°C (96°F). With an average precipitation of 110 mm (4.3 in) over 11 days, prepare for the occasional shower. The air tends to be quite moist, with an average humidity of 83%.

May Temperature in Myrtle

In May in Myrtle, the average temperature is 22°C (72°F). Maximum temperatures can reach 35°C (96°F), while minimums can drop as low as 6°C (43°F). This variety in temperatures makes Myrtle an ideal destination for travelers seeking both warm and cool experiences.

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

The chart illustrates May temperature patterns in Myrtle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Myrtle, May typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (96°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec444856617278818076655148
Data source: Temperature data for Myrtle 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 Myrtle

In Myrtle in May, the precipitation amount is 110 mm (4.3 in) spread over 11 days.

May Precipitation Trends in Myrtle

The chart displays monthly precipitation patterns in Myrtle, 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 Myrtle, May typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec12018815714611013311811311610679150
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Myrtle

In Myrtle in May humidity is 83%. With average temperature 22°C (72°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities challenging and prompting travelers to seek shade or frequent stops for hydration.

May Average Humidity in Myrtle

This chart illustrates the average monthly humidity levels in Myrtle, 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 Myrtle is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%81%83%83%80%74%70%73%85%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Myrtle

In Myrtle 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 Myrtle.

Maximum UV Index Levels in Myrtle for May

The chart shows the monthly maximum UV Index (UVI) for Myrtle 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 Myrtle typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109764
Data source: Myrtle 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 Myrtle Compares to Other Months

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

This table compares monthly weather conditions in Myrtle, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)120 mm (4.7 inches)86%moderate
February Weather9°C (48°F)188 mm (7.4 inches)85%high
March Weather14°C (57°F)157 mm (6.2 inches)84%very high
April Weather16°C (62°F)146 mm (5.8 inches)81%very high
May Weather22°C (72°F)110 mm (4.3 inches)83%extreme
June Weather26°C (78°F)133 mm (5.2 inches)83%extreme
July Weather27°C (81°F)118 mm (4.6 inches)80%extreme
August Weather26°C (80°F)113 mm (4.4 inches)73%very high
September Weather24°C (76°F)116 mm (4.6 inches)70%very high
October Weather18°C (65°F)106 mm (4.2 inches)73%high
November Weather11°C (51°F)79 mm (3.1 inches)85%high
December Weather9°C (48°F)150 mm (5.9 inches)88%moderate

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