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May Weather in Halifax, United States

Last updated: June 24, 2025

In May, the average temperature in Halifax, United States hovers around 17°C (63°F). Expect temperatures to range from a chilly 0°C (32°F) at night to a warm 33°C (91°F) during the day. With 120 mm (4.7 in) of precipitation spread over 14 days, be prepared for some wet weather. Humidity levels are also noteworthy, averaging 75% to create that classic atmosphere of the season.

May Temperature in Halifax

In May in Halifax, the average temperature is 17°C (63°F), with maximums reaching up to 33°C (91°F) and minimums potentially dipping as low as 0°C (32°F). It's advisable to pack a range of clothing to accommodate the varying temperatures during your travels.

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

The chart illustrates May temperature patterns in Halifax, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Halifax, May typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (91°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec323542526372777568584337
Data source: Temperature data for Halifax 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 Halifax

In Halifax in May, the precipitation amount is 120 mm (4.7 in) over the course of 14 days.

May Precipitation Trends in Halifax

The chart displays monthly precipitation patterns in Halifax, 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 Halifax, May typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec6810092104120901221021221138988
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Halifax

In Halifax in May, humidity is 75%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making outdoor activities a bit sticky and requiring frequent breaks to stay refreshed during your travels.

May Average Humidity in Halifax

This chart illustrates the average monthly humidity levels in Halifax, 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 Halifax is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%85%83%75%74%65%62%66%79%87%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Halifax

In Halifax 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 Halifax.

Maximum UV Index Levels in Halifax for May

The chart shows the monthly maximum UV Index (UVI) for Halifax 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 Halifax typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Halifax 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 Halifax Compares to Other Months

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

This table compares monthly weather conditions in Halifax, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)68 mm (2.7 inches)87%moderate
February Weather2°C (35°F)100 mm (3.9 inches)85%moderate
March Weather5°C (42°F)92 mm (3.6 inches)85%high
April Weather11°C (52°F)104 mm (4.1 inches)83%very high
May Weather17°C (63°F)120 mm (4.7 inches)75%very high
June Weather22°C (72°F)90 mm (3.5 inches)73%very high
July Weather25°C (77°F)122 mm (4.8 inches)65%very high
August Weather24°C (75°F)102 mm (4.0 inches)62%very high
September Weather20°C (69°F)122 mm (4.8 inches)66%very high
October Weather15°C (59°F)113 mm (4.4 inches)79%high
November Weather6°C (44°F)89 mm (3.5 inches)87%moderate
December Weather3°C (37°F)88 mm (3.5 inches)85%low

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