Weather Forecast for San Juan Islands
Washington, United States of America
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Current Weather - San Juan Islands: 16°C
Current Weather - San Juan Islands: 16°C
Washington, United States of America
Sunny
Feels like 16°C
Wind
14 km/h NNW
Humidity
64%
Pressure
1019 mb
UV Index
1
Visibility
16 km
Sunny
Thursday, June 18, 2026
High
25°C
Low
10°C
Rain Chance
4%
Hourly Forecast
24°C
24°C
23°C
21°C
17°C
16°C
14°C
Day Statistics
Maximum Wind
14 km/h
Humidity
64%
Precipitation
0 mm
UV Index
8
Visibility
10 km
Rain Chance
4%
Snow Chance
0%
Sun & Moon
Sunrise
05:09 AM
Sunset
09:16 PM
Moonrise
09:02 AM
Moonset
Does not set today
Moon Phase
Waxing Crescent
Moon Illumination
19%
Air Quality
PM2.5
8.8
μg/m³
PM10
10.1
μg/m³
NO₂
18.3
μg/m³
O₃
61.2
μg/m³
SO₂
4
μg/m³
CO
111.6
μg/m³
Sunny
Friday, June 19, 2026
High
18°C
Low
13°C
Rain Chance
9%
Hourly Forecast
14°C
14°C
13°C
13°C
13°C
13°C
13°C
14°C
14°C
15°C
16°C
16°C
17°C
17°C
18°C
18°C
18°C
17°C
16°C
16°C
15°C
15°C
14°C
14°C
Day Statistics
Maximum Wind
13 km/h
Humidity
78%
Precipitation
0 mm
UV Index
8
Visibility
10 km
Rain Chance
9%
Snow Chance
0%
Sun & Moon
Sunrise
05:09 AM
Sunset
09:17 PM
Moonrise
10:28 AM
Moonset
12:11 AM
Moon Phase
Waxing Crescent
Moon Illumination
28%
Air Quality
PM2.5
6.1
μg/m³
PM10
7.5
μg/m³
NO₂
11.9
μg/m³
O₃
71
μg/m³
SO₂
1.7
μg/m³
CO
106
μg/m³
Sunny
Saturday, June 20, 2026
High
17°C
Low
12°C
Rain Chance
10%
Hourly Forecast
13°C
13°C
12°C
12°C
12°C
12°C
12°C
12°C
12°C
13°C
14°C
14°C
15°C
15°C
16°C
17°C
17°C
16°C
16°C
15°C
14°C
13°C
13°C
13°C
Day Statistics
Maximum Wind
16 km/h
Humidity
79%
Precipitation
0 mm
UV Index
8
Visibility
10 km
Rain Chance
10%
Snow Chance
0%
Sun & Moon
Sunrise
05:09 AM
Sunset
09:17 PM
Moonrise
11:50 AM
Moonset
12:30 AM
Moon Phase
First Quarter
Moon Illumination
38%
Air Quality
PM2.5
7.4
μg/m³
PM10
10.1
μg/m³
NO₂
6.5
μg/m³
O₃
61
μg/m³
SO₂
0.9
μg/m³
CO
101.3
μg/m³
Sunny
Sunday, June 21, 2026
High
16°C
Low
12°C
Rain Chance
12%
Hourly Forecast
13°C
12°C
12°C
12°C
12°C
12°C
12°C
12°C
13°C
13°C
14°C
15°C
15°C
16°C
16°C
16°C
16°C
16°C
16°C
16°C
15°C
15°C
14°C
14°C
Day Statistics
Maximum Wind
17 km/h
Humidity
81%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
12%
Snow Chance
0%
Sun & Moon
Sunrise
05:10 AM
Sunset
09:17 PM
Moonrise
01:09 PM
Moonset
12:47 AM
Moon Phase
First Quarter
Moon Illumination
48%
Air Quality
PM2.5
8.4
μg/m³
PM10
11.4
μg/m³
NO₂
8.6
μg/m³
O₃
61.8
μg/m³
SO₂
1.6
μg/m³
CO
119.5
μg/m³
Sunny
Monday, June 22, 2026
High
20°C
Low
13°C
Rain Chance
10%
Hourly Forecast
13°C
13°C
13°C
13°C
13°C
13°C
13°C
14°C
15°C
15°C
16°C
17°C
18°C
18°C
19°C
19°C
19°C
19°C
20°C
19°C
18°C
17°C
17°C
16°C
Day Statistics
Maximum Wind
9 km/h
Humidity
75%
Precipitation
0 mm
UV Index
0
Visibility
10 km
Rain Chance
10%
Snow Chance
0%
Sun & Moon
Sunrise
05:10 AM
Sunset
09:17 PM
Moonrise
02:26 PM
Moonset
01:02 AM
Moon Phase
First Quarter
Moon Illumination
59%
Air Quality
PM2.5
11.8
μg/m³
PM10
14
μg/m³
NO₂
15.3
μg/m³
O₃
63
μg/m³
SO₂
3
μg/m³
CO
185.5
μg/m³
Sunny
Tuesday, June 23, 2026
High
19°C
Low
14°C
Rain Chance
7%
Hourly Forecast
16°C
15°C
15°C
15°C
14°C
14°C
15°C
15°C
16°C
16°C
17°C
18°C
18°C
19°C
19°C
18°C
18°C
17°C
17°C
17°C
17°C
16°C
15°C
14°C
Day Statistics
Maximum Wind
17 km/h
Humidity
73%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
7%
Snow Chance
0%
Sun & Moon
Sunrise
05:10 AM
Sunset
09:18 PM
Moonrise
03:42 PM
Moonset
01:18 AM
Moon Phase
Waxing Gibbous
Moon Illumination
69%
Sunny
Wednesday, June 24, 2026
High
18°C
Low
13°C
Rain Chance
10%
Hourly Forecast
14°C
13°C
13°C
13°C
13°C
13°C
13°C
13°C
13°C
14°C
14°C
14°C
14°C
15°C
15°C
16°C
17°C
17°C
17°C
16°C
15°C
14°C
13°C
13°C
Day Statistics
Maximum Wind
34 km/h
Humidity
79%
Precipitation
0 mm
UV Index
4
Visibility
10 km
Rain Chance
10%
Snow Chance
0%
Sun & Moon
Sunrise
05:10 AM
Sunset
09:18 PM
Moonrise
04:57 PM
Moonset
01:36 AM
Moon Phase
Waxing Gibbous
Moon Illumination
79%
Solar Radiation Data
Shortwave Radiation
150.42
Diffuse Radiation
33.62
DNI
1100
GTI
498.21
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