St. John's UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index1.2
- Avg Clouds90%
- Max Temp-1.1 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in St. John's, Canada 
will reach a high of 1.2 today. This means a low level of sun exposure. See our tips below to stay safe!
Last checked: 2026-02-06
Hourly Forecast Chart
Today's Safety Tips
The sun danger is low (0-2). You can enjoy the outdoors safely! On bright days, sunglasses are a good idea.
St. John's's UV Index
The UV index in St. John's, Canada, is generally low to moderate throughout the year, ranging from 0 in winter to about 6 in the summer months, reflecting its northern location and frequent cloud cover.
Weather Seasons
Seasons in St. John's show cold, snowy winters and cool, wet summers. Spring and fall are brief, with temperatures rising slowly in spring and cooling down quickly in fall, often accompanied by fog and rain.
St. John's's Climate
Compared to other parts of Canada, St. John's has milder winters but more precipitation. It is wetter and cloudier than most Canadian cities and experiences more fog than nearby U.S. coastal areas like Boston or New York.
Hourly UV Index Trend
See the UV index hour by hour for St. John's. When the level is high, it's smart to find some shade.
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