This is not a good day to be spending oodles of time outdoors.

That's because there's a heat warning in effect for Metro Vancouver.

Temperatures are expected to reach 29° C in coastal areas and go into the 30s in inland areas.

According to Environment Canada, risks are greater for young children, pregnant women, older adults, people with chronic illnesses, and those working or exercising outdoors.

Sign of heat illness include swelling, fainting, heat stroke, cramps, and a rash.

"Heat stroke is a medical emergency," the warning states. "If you feel dizzy or disoriented seek medical attention. Call 911 or your local emergency number. If someone has a high temperature and is unconscious or confused or has stopped sweating. Cool the person right away."

Libraries, community centres, movie theatres, and malls all offer respite from the heat.