San Juan Island - Roche Harbor Rainfall Forecast

Today 12 Jul
No Rain
Sun 13 Jul
No Rain
Mon 14 Jul
No Rain
Tue 15 Jul
No Rain
Wed 16 Jul
No Rain
Thu 17 Jul
No Rain
Fri 18 Jul
No Rain

San Juan Island - Roche Harbor Rainfall Statistics

July Rainfall

Friday Harbor Airport (8.1 miles)

Total Rainfall 2025
8.7in
Daily Average 2025
0.05in
Wettest Day 21 June, 2025
0.8in
Wet Days 2025
65/193 (34%)
Total Rainfall June
1.1in
Daily Average June
0.04in
Wettest Day 21 June, 2025
0.8in
Wet Days June
4/30 (13%)
Total Rainfall July
0.05in
Daily Average July
0.01in
Wettest Day 9 July, 2025
0.05in
Wet Days July
1/12 (8%)

Climate (2010–Present)

Friday Harbor Airport (8.1 miles)

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Annual Average 2020–2024
20.9in
Monthly Average 2020–2025
1.7in
Daily Average 2020–2025
0.1in
Wettest Day 21 December, 2020
2.5in

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