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May Weather in Lebanon, United States

Last updated: June 24, 2025

The average temperature in Lebanon, United States during May is a moderate 18°C (65°F). However, temperatures can vary widely, with a minimum of 0°C (32°F) and a maximum of 33°C (92°F). Expect precipitation to amount to approximately 128 mm (5.0 in) over about 13 days, contributing to a notably high average humidity of 81%.

May Temperature in Lebanon

In May in Lebanon, the average temperature is 18°C (65°F). Maximums can reach 33°C (92°F), and minimums can be as low as 0°C (32°F). This variability makes Lebanon an interesting destination for travelers looking to experience a range of temperatures.

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

The chart illustrates May temperature patterns in Lebanon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lebanon, May typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (92°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec323644536573777570594338
Data source: Temperature data for Lebanon 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 Lebanon

In Lebanon in May, the precipitation amount is 128 mm (5.0 in) spread over 13 days.

May Precipitation Trends in Lebanon

The chart displays monthly precipitation patterns in Lebanon, 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 Lebanon, May typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec8110812711112813511987809899106
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Lebanon

In Lebanon in May, humidity is 81%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick and sultry—a challenging environment for traveling.

May Average Humidity in Lebanon

This chart illustrates the average monthly humidity levels in Lebanon, 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 Lebanon is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Lebanon

In Lebanon 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 Lebanon.

Maximum UV Index Levels in Lebanon for May

The chart shows the monthly maximum UV Index (UVI) for Lebanon 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 Lebanon typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Lebanon 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 Lebanon Compares to Other Months

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

This table compares monthly weather conditions in Lebanon, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)81 mm (3.2 inches)88%moderate
February Weather2°C (36°F)108 mm (4.2 inches)88%moderate
March Weather7°C (44°F)127 mm (5.0 inches)87%high
April Weather12°C (54°F)111 mm (4.4 inches)85%very high
May Weather18°C (65°F)128 mm (5.0 inches)81%very high
June Weather23°C (73°F)135 mm (5.3 inches)82%very high
July Weather25°C (77°F)119 mm (4.7 inches)81%very high
August Weather24°C (75°F)87 mm (3.4 inches)73%very high
September Weather21°C (70°F)80 mm (3.1 inches)73%very high
October Weather15°C (59°F)98 mm (3.8 inches)78%high
November Weather6°C (43°F)99 mm (3.9 inches)89%moderate
December Weather3°C (38°F)106 mm (4.2 inches)87%moderate

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