Weather Forecast for San Juan Islands
Washington, United States of America
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Current Weather - San Juan Islands: 3°C
Current Weather - San Juan Islands: 3°C
Washington, United States of America
Sunny
Feels like 0°C
Wind
9 km/h NNE
Humidity
92%
Pressure
1024 mb
UV Index
0
Visibility
16 km
Sunny
Wednesday, January 21, 2026
High
9°C
Low
2°C
Rain Chance
0%
Hourly Forecast
7°C
6°C
5°C
4°C
4°C
4°C
4°C
Day Statistics
Maximum Wind
10 km/h
Humidity
83%
Precipitation
0 mm
UV Index
0
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
07:54 AM
Sunset
04:54 PM
Moonrise
09:24 AM
Moonset
08:25 PM
Moon Phase
Waxing Crescent
Moon Illumination
5%
Air Quality
PM2.5
17.8
μg/m³
PM10
17.9
μg/m³
NO₂
59.6
μg/m³
O₃
16.3
μg/m³
SO₂
6.5
μg/m³
CO
225.1
μg/m³
Fog
Thursday, January 22, 2026
High
4°C
Low
3°C
Rain Chance
0%
Hourly Forecast
4°C
4°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
3°C
4°C
3°C
Day Statistics
Maximum Wind
8 km/h
Humidity
97%
Precipitation
0 mm
UV Index
0
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
07:53 AM
Sunset
04:55 PM
Moonrise
09:39 AM
Moonset
09:41 PM
Moon Phase
Waxing Crescent
Moon Illumination
10%
Air Quality
PM2.5
18.8
μg/m³
PM10
19.1
μg/m³
NO₂
49.6
μg/m³
O₃
20.1
μg/m³
SO₂
4.9
μg/m³
CO
324.3
μg/m³
Partly Cloudy
Friday, January 23, 2026
High
4°C
Low
2°C
Rain Chance
0%
Hourly Forecast
3°C
2°C
2°C
2°C
2°C
2°C
2°C
2°C
3°C
3°C
3°C
3°C
3°C
4°C
4°C
4°C
4°C
3°C
3°C
3°C
3°C
3°C
2°C
2°C
Day Statistics
Maximum Wind
15 km/h
Humidity
85%
Precipitation
0 mm
UV Index
0
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
07:52 AM
Sunset
04:57 PM
Moonrise
09:54 AM
Moonset
10:58 PM
Moon Phase
Waxing Crescent
Moon Illumination
18%
Air Quality
PM2.5
17.3
μg/m³
PM10
17.8
μg/m³
NO₂
53.6
μg/m³
O₃
22.4
μg/m³
SO₂
6.4
μg/m³
CO
329.2
μg/m³
Partly Cloudy
Saturday, January 24, 2026
High
6°C
Low
2°C
Rain Chance
0%
Hourly Forecast
2°C
2°C
2°C
2°C
2°C
2°C
2°C
2°C
3°C
3°C
3°C
5°C
5°C
6°C
6°C
6°C
6°C
5°C
5°C
5°C
5°C
5°C
4°C
4°C
Day Statistics
Maximum Wind
14 km/h
Humidity
78%
Precipitation
0 mm
UV Index
0
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
07:51 AM
Sunset
04:58 PM
Moonrise
10:09 AM
Moonset
No moonset
Moon Phase
Waxing Crescent
Moon Illumination
26%
Air Quality
PM2.5
11.7
μg/m³
PM10
12.1
μg/m³
NO₂
35.8
μg/m³
O₃
40.9
μg/m³
SO₂
5.4
μg/m³
CO
195.3
μg/m³
Sunny
Sunday, January 25, 2026
High
6°C
Low
3°C
Rain Chance
0%
Hourly Forecast
4°C
4°C
4°C
4°C
3°C
3°C
3°C
3°C
3°C
4°C
4°C
5°C
5°C
6°C
6°C
6°C
5°C
5°C
5°C
5°C
5°C
5°C
5°C
5°C
Day Statistics
Maximum Wind
10 km/h
Humidity
63%
Precipitation
0 mm
UV Index
0
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
07:50 AM
Sunset
05:00 PM
Moonrise
10:27 AM
Moonset
12:17 AM
Moon Phase
Waxing Crescent
Moon Illumination
37%
Air Quality
PM2.5
14.8
μg/m³
PM10
15.5
μg/m³
NO₂
31.5
μg/m³
O₃
39.6
μg/m³
SO₂
5
μg/m³
CO
280.3
μg/m³
Partly Cloudy
Monday, January 26, 2026
High
6°C
Low
4°C
Rain Chance
0%
Hourly Forecast
5°C
5°C
5°C
5°C
4°C
4°C
4°C
4°C
5°C
5°C
5°C
5°C
6°C
6°C
6°C
6°C
6°C
6°C
6°C
6°C
6°C
6°C
6°C
6°C
Day Statistics
Maximum Wind
10 km/h
Humidity
67%
Precipitation
0 mm
UV Index
3
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
07:49 AM
Sunset
05:02 PM
Moonrise
10:50 AM
Moonset
01:40 AM
Moon Phase
First Quarter
Moon Illumination
48%
Sunny
Tuesday, January 27, 2026
High
7°C
Low
5°C
Rain Chance
0%
Hourly Forecast
6°C
5°C
5°C
5°C
5°C
5°C
5°C
5°C
5°C
5°C
6°C
6°C
7°C
7°C
7°C
7°C
7°C
7°C
6°C
6°C
6°C
6°C
6°C
6°C
Day Statistics
Maximum Wind
10 km/h
Humidity
71%
Precipitation
0 mm
UV Index
3
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
07:47 AM
Sunset
05:03 PM
Moonrise
11:20 AM
Moonset
03:04 AM
Moon Phase
Waxing Gibbous
Moon Illumination
59%
Solar Radiation Data
Shortwave Radiation
14.33
Diffuse Radiation
6.12
DNI
0
GTI
5.57
Weather Alerts
yellow advisory - fog - in effect
Near zero visibility in fog continues over some areas. Where: -Metro Vancouver - central including the City of Vancouver, Burnaby and New Westminster -Metro Vancouver - southwest including Richmond and Delta -Metro Vancouver - southeast including White Rock, Surrey and Langley -Metro Vancouver - northeast including Coquitlam and Maple Ridge When: Dissipating this afternoon. Remark: A ridge of high pressure off the coast of BC, is trapping moisture near the surface creating areas of dense fog across Metro Vancouver, and especially near the Strait of Georgia, Burrard Inlet, Boundary Bay and the Fraser River. Today, the coastal ridge is forecast to weaken with approaching weather systems, and in combination with outflow wind conditions, the persistent fog should dissipate. Fog may develop in coastal areas again tonight. Additionally, expect slippery and icy conditions in low-lying areas where the combination of fog patches and below freezing temperatures will allow black ice to form. ### 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 X using #BCStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
Be prepared for areas of near-zero visibility and allow extra time to reach your destination. If driving, turn on your lights, slow down and maintain a safe following distance.
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