nomadseason

May Weather in Greater Napanee, Canada

Last updated: June 18, 2025

In May, the average temperature in Greater Napanee, Canada is a comfortable 14°C (57°F). However, be prepared for a range of conditions, as temperatures can dip to a brisk -3°C (28°F) or rise to a balmy 31°C (88°F). With 95 mm (3.8 in) of precipitation expected over 12 days and an average humidity of 75%, it's wise to pack accordingly for a variety of weather experiences!

May Temperature in Greater Napanee

In May in Greater Napanee, the average temperature is 14°C (57°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop to as low as -3°C (28°F). This makes Greater Napanee an ideal destination for travelers seeking diverse weather experiences.

May Weather in Greater Napanee: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Greater Napanee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greater Napanee, May typically has an average temperature of 14°C (57°F), with highs reaching up to 31°C (88°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec222432435666727063513728
Data source: Temperature data for Greater Napanee generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Greater Napanee

In Greater Napanee in May, the precipitation amount is 95 mm (3.8 in) spread over 12 days.

May Precipitation Trends in Greater Napanee

The chart displays monthly precipitation patterns in Greater Napanee, 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 Greater Napanee, May typically receives around 95 mm (3.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec71737012096909590721379485
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Greater Napanee

In Greater Napanee in May, humidity is 75%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket enveloping you, making outdoor activities somewhat uncomfortable and travel a bit sluggish, as the air feels heavy and the heat lingers close to your skin.

May Average Humidity in Greater Napanee

This chart illustrates the average monthly humidity levels in Greater Napanee, 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 Greater Napanee is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%86%82%75%68%69%67%72%83%88%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Greater Napanee

In Greater Napanee in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Greater Napanee.

Maximum UV Index Levels in Greater Napanee for May

The chart shows the monthly maximum UV Index (UVI) for Greater Napanee 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 Greater Napanee typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899997532
Data source: Greater Napanee 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 Greater Napanee Compares to Other Months

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

This table compares monthly weather conditions in Greater Napanee, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)71 mm (2.8 inches)93%low
February Weather-4°C (24°F)73 mm (2.9 inches)93%moderate
March Weather0°C (32°F)70 mm (2.8 inches)86%moderate
April Weather6°C (44°F)120 mm (4.7 inches)82%very high
May Weather14°C (57°F)95 mm (3.8 inches)75%very high
June Weather19°C (66°F)90 mm (3.5 inches)68%very high
July Weather22°C (73°F)95 mm (3.7 inches)69%very high
August Weather21°C (71°F)90 mm (3.6 inches)67%very high
September Weather17°C (63°F)72 mm (2.8 inches)72%high
October Weather11°C (52°F)137 mm (5.4 inches)83%moderate
November Weather3°C (38°F)94 mm (3.7 inches)88%moderate
December Weather-2°C (28°F)85 mm (3.4 inches)89%low

Compare Greater Napanee's Climate with Cities Worldwide