Coos Bay, Oregon Weather by Month

Coos Bay is a picturesque city located in Coos County, in the southwestern region of the state of Oregon, United States. Positioned on the southern Oregon coast, Coos Bay lies along the Pacific Ocean and is approximately 220 miles southwest of Portland and about 150 miles north of the California border. The city is situated around the Coos Bay estuary, providing a stunning backdrop of waterfront views, lush forests, and rolling hills.

Coos Bay is part of the United States and falls under the jurisdiction of Oregon. As of the latest census, the city has a population of around 16,000 residents, making it the largest city on the Oregon Coast. Coos Bay covers an area of approximately 15.9 square miles, encompassing both land and water, which contribute to its unique coastal charm and vibrant community life.

One notable company in Coos Bay is the International Port of Coos Bay, which plays a significant role in the local economy by facilitating maritime trade and transportation. Although Coos Bay does not host a major university, it is home to Southwestern Oregon Community College, which provides a range of educational programs and serves as a cultural hub for the region.

Major landmarks in Coos Bay include the Oregon Dunes National Recreation Area, which offers a variety of outdoor activities such as hiking, dune buggy riding, and wildlife viewing. The Coos Art Museum showcases the region’s artistic heritage, and the historic Egyptian Theatre hosts a variety of cultural and entertainment events. Additionally, the nearby Shore Acres State Park is renowned for its beautiful gardens and dramatic coastal views.

Climate and Weather Overview

Coos Bay, Oregon, experiences a marine west coast climate, characterized by mild, wet winters and cool, dry summers. The weather is influenced by its coastal location and the moderating effects of the Pacific Ocean, resulting in relatively stable temperatures throughout the year.

Monthly Average Temperature, Precipitation, and Sunny Days

Month Average Temperature (°F) Average Precipitation (inches) Average Sunny Days
January 38 – 53 10.1 7
February 39 – 54 8.8 8
March 40 – 56 8.3 11
April 42 – 58 5.3 13
May 46 – 62 3.2 15
June 50 – 65 2.1 16
July 52 – 68 0.7 20
August 53 – 69 1.0 20
September 51 – 68 2.1 18
October 46 – 63 5.6 14
November 42 – 57 9.8 9
December 39 – 53 11.6 7

Weather by Month

January

January in Coos Bay is typically cool and wet, with average temperatures ranging from 38°F to 53°F. The city receives about 10.1 inches of precipitation, primarily in the form of rain, and experiences around 7 sunny days.

Recommended Activities: January is perfect for indoor activities such as visiting local museums, enjoying the warmth of cafes, and attending community events. Outdoor enthusiasts can partake in activities like hiking in the nearby Oregon Dunes National Recreation Area and exploring the scenic beauty of Shore Acres State Park on clear days.

February

February remains cool and wet, with temperatures ranging from 39°F to 54°F. Precipitation is slightly lower at 8.8 inches, and there are about 8 sunny days.

Recommended Activities: Similar to January, winter sports and indoor activities dominate February’s calendar. Valentine’s Day events and winter festivals are also popular during this month. Hiking and scenic drives along the coast are enjoyable on sunny days.

March

March sees a gradual warming, with temperatures ranging from 40°F to 56°F. Precipitation decreases slightly to 8.3 inches, and there are about 11 sunny days.

Recommended Activities: March is a transitional month, ideal for early spring hikes and enjoying the emerging greenery. Local parks and gardens begin to bloom, making it a great time to start planning for gardening and outdoor projects. Visiting the Coos Art Museum is a good indoor activity.

April

April brings milder temperatures, ranging from 42°F to 58°F. Precipitation continues to decrease to 5.3 inches, and there are typically 13 sunny days.

Recommended Activities: April is a great month for outdoor activities such as hiking, bird watching, and exploring local trails. The mild weather also makes it perfect for visiting local farmers’ markets and participating in community events. It’s a good time to enjoy the blooming flowers and fresh greenery at Shore Acres State Park.

May

May sees significant warming, with temperatures ranging from 46°F to 62°F. Precipitation is lower at 3.2 inches, and there are about 15 sunny days.

Recommended Activities: May is ideal for outdoor activities such as hiking, fishing, and picnicking in local parks. The city’s gardens and landscapes are in full bloom, making it a great time for photography and nature walks. Visiting the Oregon Dunes National Recreation Area is also recommended.

June

June ushers in summer, with temperatures between 50°F and 65°F. Precipitation is around 2.1 inches, and there are about 16 sunny days.

Recommended Activities: June is perfect for a wide range of outdoor activities. Swimming, boating, and fishing are popular at nearby lakes and rivers. Local festivals, farmers’ markets, and outdoor concerts also kick off in June. It’s a great time for camping and exploring the natural beauty of the region.

July

July is the warmest and driest month, with temperatures ranging from 52°F to 68°F. Precipitation is very low at 0.7 inches, and there are about 20 sunny days.

Recommended Activities: July is peak season for outdoor activities in Coos Bay. Swimming, boating, and fishing are popular on nearby lakes. The city hosts various summer festivals and events. Hiking trails and mountain biking routes are in full swing, and it’s also a great time for picnics and barbecues.

August

August maintains warm temperatures, ranging from 53°F to 69°F. Precipitation is slightly higher at 1.0 inch, and there are typically 20 sunny days.

Recommended Activities: August continues to offer excellent conditions for outdoor recreation. Water sports, hiking, and camping remain popular. The city’s summer events and outdoor concerts provide entertainment for locals and visitors alike. It’s also a good time for stargazing on clear nights.

September

September sees cooling temperatures, ranging from 51°F to 68°F. Precipitation is steady at 2.1 inches, and there are about 18 sunny days.

Recommended Activities: September is a beautiful time to enjoy the fall foliage as the leaves begin to change color. Hiking and scenic drives are highly recommended. It’s also a great time for apple picking at local orchards and visiting farms for fresh produce and fall festivals.

October

October brings pleasant autumn weather, with temperatures ranging from 46°F to 63°F. Precipitation increases to 5.6 inches, and there are typically 14 sunny days.

Recommended Activities: October is perfect for enjoying the fall scenery. Leaf-peeping, hayrides, and harvest festivals are popular. Hiking and outdoor photography are also great activities. Halloween events and local fairs add to the festive atmosphere. Visiting pumpkin patches and enjoying seasonal treats are highlights of the month.

November

November sees cooler temperatures, ranging from 42°F to 57°F. Precipitation is higher at 9.8 inches, and there are about 9 sunny days.

Recommended Activities: November marks the transition to winter, making it a good time for indoor activities like visiting museums and enjoying local cuisine. Early rainfall can provide opportunities for the first snowshoeing and skiing outings of the season. Thanksgiving celebrations and holiday preparations also take center stage.

December

December brings cool and wet conditions, with temperatures between 39°F and 53°F. Precipitation is around 11.6 inches, and there are typically 7 sunny days.

Recommended Activities: December is ideal for holiday activities and enjoying the local culture. Visiting holiday markets, attending festive events, and exploring the outdoors on sunny days are recommended. The clear skies also provide excellent stargazing opportunities.

Natural Disasters and Activities

Coos Bay, like much of the Oregon coast, can experience severe weather, including heavy rainstorms and occasional flooding during the wet season. While earthquakes are a potential risk due to the proximity of the Cascadia Subduction Zone, they are infrequent. The city is relatively free from major natural disasters such as hurricanes or tornadoes but can experience winter storms and strong coastal winds.

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