February Weather in Saint John, United States

Last updated: June 24, 2025

In Saint John, United States, the average temperature in February hovers around 1°C (34°F), with fluctuations ranging from a minimum of -23°C (-10°F) to a maximum of 25°C (77°F). Expect a modest precipitation amount of 21 mm (0.8 in) over 3 days, coupled with an average humidity level of 76%. Stay prepared for the diverse weather conditions this month brings!

February Temperature in Saint John

In February in Saint John, the average temperature is 1°C (34°F). Maximum temperatures can reach 25°C (77°F), while the minimum can plummet to -23°C (-10°F). Be prepared for a wide range of temperatures if you're traveling during this time.

February Weather in Saint John: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Saint John, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint John, February typically has an average temperature of 1°C (34°F), with highs reaching up to 25°C (77°F) and lows dropping to around -23°C (-10°F).

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

February Precipitation in Saint John

In Saint John in February, the precipitation amount is 21 mm (0.8 in) over a period of 3 days.

February Precipitation Trends in Saint John

The chart displays monthly precipitation patterns in Saint John, with values for each month alongside February’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how February’s conditions compare to those of other months. In Saint John, February typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 3 days.

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

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Millimeters (mm) Inches (in)

February Humidity in Saint John

In Saint John in February humidity is 76%. With an average temperature of 1°C (34°F), this humidity feels like a damp chill that clings to your skin, making every step outside feel heavier and more exhausting for traveling.

February Average Humidity in Saint John

This chart illustrates the average monthly humidity levels in Saint John, with February’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In February, average humidity in Saint John is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for February generated using information from the Copernicus Climate Change Service.

February UV Index in Saint John

In Saint John in February, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Saint John.

Maximum UV Index Levels in Saint John for February

The chart shows the monthly maximum UV Index (UVI) for Saint John in February, 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 February, the maximum UV index in Saint John typically reaches 5, which falls under the moderate exposure category.

Data source: Saint John February 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 February Weather in Saint John Compares to Other Months

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

This table compares monthly weather conditions in Saint John, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	25 mm (1.0 inches)	75%	moderate
February Weather	1°C (34°F)	21 mm (0.8 inches)	76%	moderate
March Weather	8°C (47°F)	68 mm (2.7 inches)	67%	high
April Weather	12°C (54°F)	50 mm (2.0 inches)	70%	very high
May Weather	18°C (65°F)	168 mm (6.6 inches)	82%	very high
June Weather	25°C (77°F)	62 mm (2.4 inches)	82%	extreme
July Weather	27°C (81°F)	58 mm (2.3 inches)	81%	extreme
August Weather	25°C (78°F)	74 mm (2.9 inches)	76%	very high
September Weather	23°C (73°F)	62 mm (2.4 inches)	67%	very high
October Weather	14°C (57°F)	81 mm (3.2 inches)	72%	high
November Weather	7°C (45°F)	24 mm (0.9 inches)	80%	moderate
December Weather	3°C (37°F)	32 mm (1.3 inches)	83%	moderate