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May Weather in Fredericton, Canada

Last updated: June 18, 2025

In Fredericton, Canada, the average temperature in May hovers around 11°C (52°F). During this month, temperatures can range from a chilly -3°C (27°F) to a warm 32°C (90°F). Expect 116 mm (4.6 in) of precipitation spread across about 13 days, with an average humidity of 78%. Prepare for a varied and humid climate!

May Temperature in Fredericton

In May in Fredericton, the average temperature is 11°C (52°F), with maximums reaching 32°C (90°F) and minimums dropping as low as -3°C (27°F). Travelers should be prepared for a wide range of weather conditions during this time.

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

The chart illustrates May temperature patterns in Fredericton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fredericton, May typically has an average temperature of 11°C (52°F), with highs reaching up to 32°C (90°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec182028415262676759483424
Data source: Temperature data for Fredericton 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 Fredericton

In Fredericton in May, the total precipitation amount reaches 116 mm (4.6 in) over the course of 13 days.

May Precipitation Trends in Fredericton

The chart displays monthly precipitation patterns in Fredericton, 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 Fredericton, May typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec10091831131161011039098102136118
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Fredericton

In Fredericton in May humidity is 78%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities somewhat uncomfortable and travel more challenging as you navigate the moist air.

May Average Humidity in Fredericton

This chart illustrates the average monthly humidity levels in Fredericton, 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 Fredericton is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%84%82%80%78%82%84%82%82%82%84%82%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Fredericton

In Fredericton in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Fredericton.

Maximum UV Index Levels in Fredericton for May

The chart shows the monthly maximum UV Index (UVI) for Fredericton 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 Fredericton typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789887532
Data source: Fredericton 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 Fredericton Compares to Other Months

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

This table compares monthly weather conditions in Fredericton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (19°F)100 mm (4.0 inches)83%low
February Weather-7°C (20°F)91 mm (3.6 inches)84%moderate
March Weather-2°C (28°F)83 mm (3.3 inches)82%moderate
April Weather5°C (41°F)113 mm (4.5 inches)80%high
May Weather11°C (52°F)116 mm (4.6 inches)78%very high
June Weather17°C (62°F)101 mm (4.0 inches)82%very high
July Weather20°C (68°F)103 mm (4.0 inches)84%very high
August Weather19°C (67°F)90 mm (3.5 inches)82%very high
September Weather15°C (59°F)98 mm (3.9 inches)82%high
October Weather9°C (48°F)102 mm (4.0 inches)82%moderate
November Weather1°C (35°F)136 mm (5.3 inches)84%moderate
December Weather-5°C (24°F)118 mm (4.6 inches)82%low

Compare Fredericton's Climate with Cities Worldwide