February Weather in St. Thomas, Canada

Last updated: June 18, 2025

In St. Thomas, Canada, the average temperature in February hovers around -3°C (27°F). While you can experience chilly lows of -22°C (-7°F), the mercury can also rise to a comfortable 13°C (56°F). Prepare for some wet weather too, with 79 mm (3.1 in) of precipitation spread over 12 days. Don’t forget your warm layers, as the air feels quite humid with an average humidity level of 90%!

February Temperature in St. Thomas

In February in St. Thomas, the average temperature is -3°C (27°F), with a maximum that can reach 13°C (56°F) and a minimum that can drop as low as -22°C (-7°F). Travelers should be prepared for a wide range of temperatures, from chilly conditions to surprisingly mild days.

February Weather in St. Thomas: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in St. Thomas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In St. Thomas, February typically has an average temperature of -3°C (27°F), with highs reaching up to 13°C (56°F) and lows dropping to around -22°C (-7°F).

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

February Precipitation in St. Thomas

In St. Thomas in February, the precipitation amount is 79 mm (3.1 in) over a period of 12 days.

February Precipitation Trends in St. Thomas

The chart displays monthly precipitation patterns in St. Thomas, 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 St. Thomas, February typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

February Humidity in St. Thomas

In St. Thomas in February humidity is 90%. With an average temperature of -3°C (27°F), this humidity feels like a bitter chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to combat both the cold and the dampness in the air.

February Average Humidity in St. Thomas

This chart illustrates the average monthly humidity levels in St. Thomas, 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 St. Thomas is approximately 90%, 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 St. Thomas

In St. Thomas in February, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in St. Thomas for better planning.

Maximum UV Index Levels in St. Thomas for February

The chart shows the monthly maximum UV Index (UVI) for St. Thomas 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 St. Thomas typically reaches 4, which falls under the moderate exposure category.

Data source: St. Thomas 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 St. Thomas Compares to Other Months

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

This table compares monthly weather conditions in St. Thomas, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	76 mm (3.0 inches)	90%	moderate
February Weather	-3°C (27°F)	79 mm (3.1 inches)	90%	moderate
March Weather	1°C (34°F)	81 mm (3.2 inches)	87%	moderate
April Weather	6°C (43°F)	106 mm (4.2 inches)	87%	very high
May Weather	13°C (55°F)	99 mm (3.9 inches)	82%	very high
June Weather	19°C (66°F)	93 mm (3.7 inches)	81%	very high
July Weather	22°C (72°F)	91 mm (3.6 inches)	79%	very high
August Weather	22°C (71°F)	96 mm (3.8 inches)	80%	very high
September Weather	18°C (65°F)	82 mm (3.2 inches)	81%	very high
October Weather	12°C (55°F)	123 mm (4.9 inches)	84%	high
November Weather	5°C (41°F)	94 mm (3.7 inches)	88%	moderate
December Weather	1°C (34°F)	77 mm (3.0 inches)	87%	low