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Thunder Bay's current temperature and UV Index:
 
Don’t let a sunburn ruin your vacation! 
Sunburns can happen in minutes during a trip to sunny destinations where the UV index is Extreme (11+). More information can be found by reading below.

Unlike Canada, many tropical…

Thunder Bay's current temperature and UV Index:
 
 
Winter Sun Savvy Facts

Reducing ultraviolet radiation (UV) exposure decreases the risk of skin cancer and eye
damage.
Up to 80% of sun’s UV rays reflect off snow and ice.
UV reflected off snow in winter is stronger than UV reflected…

UV Index
To find the current UV index for the Thunder Bay District, please visit Environment Canada's page: Thunder Bay's Current Weather Conditions


UV Index


UV Index
Description




Low (1-2)


Sunglasses (bright days)
Cover-up (> 1 hour)

Sunscreen SPF 30+ (> 1 hour)






Medium (3-5…

Did you know?

1 in 4 school-aged children in Canada has a vision problem.

Children need healthy eyes to learn, read, write, see the board, be active and stay safe. It can be difficult to spot vision problems in children and left untreated, vision problems can affect a child's eye health for life…

On Monday, April 8, 2024, there will be a total solar eclipse in parts of Ontario when the Moon travels between the Sun and the Earth.

The Thunder Bay District will only experience a partial solar eclipse, when the Moon will block part of the Sun around 2:00 pm to 4:30 pm (Eastern time). During…

We all love sunny days, but the sun can be damaging to our health without the proper precautions. Holes in the Earth’s natural defence against ultraviolet (UV) rays – the ozone layer – have left us at an even higher risk for skin cancer.

The role of the Thunder Bay District Health Unit is to raise…

The tools used in body art services (including tattoos, body piercing and micro-pigmentation – also known as “permanent makeup”) and salon services (including manicures and pedicures) often come into contact with blood and other bodily fluids. This increases the risk for transmitting serious…

Extreme heat events due to a changing climate are a growing public health risk in Canada. Because of our cooler climate in the Thunder Bay District, we can be more susceptible to extreme heat than those who are regularly exposed to it.

Heat Illnesses

Extreme heat puts everyone at risk of heat…

Children's visual health is vital for their overall development, learning and well-being. Undetected vision issues in children can impact their ability to explore their environment, succeed in school and engage in everyday activities. It is important for caregivers to understand how to spot vision…

Ontario Tanning Bed Legislation-Information for Tanning Bed Operators

Effective May 1, 2014, it is illegal to sell, offer for sale or provide tanning services to anyone under 18 years of age in Ontario.  Visit www.ontario.ca/uvrsmart  for more information. Below are the most common…

May 6, 2019 - The Thunder Bay District Health Unit is pleased to announce the launch of our Children’s Visual Health program. Mandated by the Ministry of Health and Long-Term Care, this new program includes school vision screening and visual health promotion. From February to June 2019, free in-…