Rosario, WA
Unincorporated community in San Juan County, Washington
Rosario is a small unincorporated community in San Juan County, Washington. It is 10.3 miles SW of Friday Harbor, the nearest town. Its ZIP code is 98245.
Rosario at a glance
- State
- Washington
- County
- San Juan County
- ZIP code
- 98245
- Nearest town
- Friday Harbor (10.3 mi)
- Time zone
- America/Los Angeles
- Coordinates
- 48.6489, -122.8747
Weather in Rosario now
Loading the National Weather Service forecast…
Rosario weather by the hour
Rosario weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Rosario.
This week in Rosario
Sunrise, sunset and moon in Rosario
What is the weather usually like in Rosario?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 69°F average high
- Decembercoldest month · 38°F average low
- 29.2 inprecipitation per year · 741 mm
- 5.8 insnowfall per year · 15 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Rosario: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station OLGA 2 SE, WA US (USC00456096), adjusted for the elevation of Rosario.
Rosario weather month by month
Sunrise and sunset in Rosario through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:56 AM | 4:45 PM | 8 h 48 min |
| February | 7:16 AM | 5:34 PM | 10 h 17 min |
| March | 7:22 AM | 7:18 PM | 11 h 56 min |
| April | 6:18 AM | 8:04 PM | 13 h 46 min |
| May | 5:27 AM | 8:47 PM | 15 h 19 min |
| June | 5:06 AM | 9:17 PM | 16 h 11 min |
| July | 5:23 AM | 9:11 PM | 15 h 47 min |
| August | 6:03 AM | 8:28 PM | 14 h 24 min |
| September | 6:47 AM | 7:25 PM | 12 h 38 min |
| October | 7:30 AM | 6:23 PM | 10 h 53 min |
| November | 7:18 AM | 4:33 PM | 9 h 14 min |
| December | 7:55 AM | 4:17 PM | 8 h 22 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Rosario?
Rosario has a warm-summer mediterranean climate. The warmest month is July, with an average high of 69°F (21°C), and the coldest is December, with average lows of 38°F (3°C).
It gets about 29.2 inches (741 mm) of precipitation a year. The wettest month is November and the driest is July. Snow is common: about 6 inches fall in an average year.
The best time to visit Rosario is June to September. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
Webcams near Rosario
The closest live webcam is Buckhorn › West: Orcas Island Airport, 4.4 miles N of Rosario.
Webcams: Windy.com. Distances in a straight line from Rosario.
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Map of Rosario, WA
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Rosario Street View
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Questions about Rosario
Where is Rosario, WA?
Rosario is an unincorporated community in San Juan County, Washington, 10.3 miles SW of Friday Harbor.
What county is Rosario in?
Rosario is in San Juan County, Washington.
What is the ZIP code of Rosario, WA?
The ZIP code for Rosario is 98245.
What is the nearest town to Rosario?
Friday Harbor, 10.3 miles away.
Are there webcams near Rosario?
Yes. The closest is Buckhorn › West: Orcas Island Airport, 4.4 miles away.
What is the hottest month in Rosario?
July, with an average high of 69°F (21°C).
What is the coldest month in Rosario?
December, with an average low of 38°F (3°C).
How much does it rain in Rosario?
About 29.2 inches (741 mm) a year; the wettest month is November.
Does it snow in Rosario?
Yes, about 6 inches of snow fall in an average year.
When is the best time to visit Rosario?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Rosario have?
Warm-summer mediterranean (Köppen Csb).
Last updated: