Weather Forecast for Nanaimo

British Columbia, Canada

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Partly cloudy

Current Weather - Nanaimo: 26°C

British Columbia, Canada

Partly cloudy

Feels like 26°C

Wind

12 km/h E

Humidity

45%

Pressure

1015 mb

UV Index

7

Visibility

24 km

Sunny

Sunny

Thursday, July 23, 2026

High

31°C

Low

16°C

Rain Chance

1%

Hourly Forecast

Clear 16°C
23:00
Jul 24

Day Statistics

Maximum Wind

12 km/h

Humidity

48%

Precipitation

0 mm

UV Index

8

Visibility

10 km

Rain Chance

1%

Snow Chance

0%

Sun & Moon

Sunrise

05:36 AM

Sunset

09:07 PM

Moonrise

05:22 PM

Moonset

12:27 AM

Moon Phase

Waxing Gibbous

Moon Illumination

74%

Air Quality

PM2.5

8.5

μg/m³

PM10

9.5

μg/m³

NO₂

9.2

μg/m³

O₃

71.8

μg/m³

SO₂

1.3

μg/m³

CO

135.1

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

799.5

Diffuse Radiation

197.74

DNI

0

GTI

0

Weather Alerts

yellow warning - heat - in effect

Howe Sound Jul 23, 11:57 AM - Jul 24, 03:57 AM
Severity: Moderate Urgency: Immediate

This is a heat warning. Temperatures are high and there is a risk to public health. What: A period of elevated temperatures continues. When: Today and tonight. Where: Howe Sound, Whistler. Additional Information: A ridge of high pressure is bringing elevated temperatures to the region. Daytime highs will be in the low 30s with overnight lows in the mid teens. A gradual cooling trend will begin Friday. ### Heat affects everyone, but the risks are greater for: seniors, people who live alone, people with pre-existing health conditions such as diabetes, heart disease or respiratory disease, people with mental illness such as schizophrenia, depression, or anxiety, people with substance use disorders, people with limited mobility. Check on family, friends and neighbours, who are at higher risk, particularly if they live alone, to make sure they have a cool space. Watch for the effects of heat illness: heavy sweating, rash, cramps, fainting, high body temperature and the worsening of some health conditions. For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html To get more information: - Check the local news for health and safety updates. - Check HealthLinkBC online resources about heat-related illness and how to protect yourself at https://www.healthlinkbc.ca/healthlinkbc-files/heat-related-illness. - Call HealthLinkBC at 8-1-1 to ask about heat-related illness. Environment Canada and local Medical Health Officers expect an increase in health and safety risks from heat and are advising the public to take precautions. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on social media using #BCStorm.

Never leave susceptible people, particularly children, or pets inside a parked vehicle. If you are in an overheated area, seek a cool place such as a tree-shaded area, splash pad, misting station, or air-conditioned spot like a public building.

Event: heat Certainty: Likely Category: Met

Small Craft Advisory issued July 23 at 2:24AM PDT until July 23 at 9:00AM PDT by NWS Seattle WA

Northern Inland Waters Including The San Juan Islands Jul 23, 02:24 AM - Jul 23, 09:00 AM
Severity: Minor Urgency: Expected

* WHAT...South winds 15 to 25 kt. * WHERE...Northern Inland Waters Including The San Juan Islands. * WHEN...Until 9 AM PDT this morning. * IMPACTS...Conditions will be hazardous to small craft.

A Small Craft Advisory means that wind speeds of 21 to 33 knots and/or seas 10 feet or higher are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions.

Event: Small Craft Advisory Certainty: Likely Category: Met

Small Craft Advisory issued July 23 at 8:55AM PDT until July 23 at 9:00AM PDT by NWS Seattle WA

Northern Inland Waters Including The San Juan Islands Jul 23, 08:55 AM - Jul 23, 10:00 AM
Severity: Minor Urgency: Expected

Winds have started to subside and will continue to subside into the afternoon hours.

Event: Small Craft Advisory Certainty: Likely Category: Met