May Weather in Halifax, United States

Last updated: June 24, 2025

In Halifax, United States, the average temperature in May hovers around 21°C (70°F). Expect a minimum chill of 4°C (40°F), with highs reaching up to 37°C (98°F). This month brings 106 mm (4.2 in) of precipitation spread across 11 days, contributing to an average humidity of 82%. Prepare accordingly for a mix of warm days and occasional showers!

May Temperature in Halifax

In May in Halifax, the average temperature is 21°C (70°F). Maximum temperatures can reach 37°C (98°F), while minimums can dip as low as 4°C (40°F). This climate makes Halifax an ideal destination for those seeking warm days and cool evenings, perfect for both outdoor adventures and leisurely explorations.

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 21°C (70°F), with highs reaching up to 37°C (98°F) and lows dropping to around 4°C (40°F).

Data source: Temperature data for Halifax generated using information from the Copernicus Climate Change Service.

May Precipitation in Halifax

In Halifax in May, the precipitation amount is 106 mm (4.2 in) spread over a duration of 11 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 106 mm (4.2 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Halifax

In Halifax in May, humidity is 82%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace that can quickly lead to discomfort for travelers, making outdoor activities less enjoyable and requiring frequent breaks for hydration.

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 82%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	90 mm (3.5 inches)	84%	moderate
February Weather	9°C (49°F)	103 mm (4.1 inches)	84%	high
March Weather	11°C (53°F)	77 mm (3.0 inches)	84%	very high
April Weather	17°C (62°F)	99 mm (3.9 inches)	82%	very high
May Weather	21°C (70°F)	106 mm (4.2 inches)	82%	very high
June Weather	25°C (77°F)	131 mm (5.2 inches)	83%	extreme
July Weather	27°C (81°F)	120 mm (4.7 inches)	79%	extreme
August Weather	26°C (79°F)	153 mm (6.0 inches)	77%	very high
September Weather	24°C (75°F)	114 mm (4.5 inches)	75%	very high
October Weather	19°C (66°F)	80 mm (3.1 inches)	81%	very high
November Weather	11°C (52°F)	86 mm (3.4 inches)	87%	moderate
December Weather	8°C (47°F)	94 mm (3.7 inches)	85%	moderate