Coos Bay (OR)
August
Weather in Coos Bay, Oregon for August 2026
Your guide to Coos Bay weather in August - trends and predictions
In general, the average temperature in Coos Bay at the beginning of August is 17.9 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 18.9 °C by the end of August.
Coos Bay experiences moderate rainfall in August, with an average of 7 rainy days and a total precipitation of 43.1 mm.
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Temperatures
Rain 🌧️
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24
Dry days
7
Rainy days
0
Snow days
18°/12°
Temperatures
17 km/h
Avg max wind
87 %
Avg humidity
Coos Bay Weather August
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Temperatures trend during August in Coos Bay
See the weather trend as well as the moving average line
August weather in Coos Bay day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Overcast | 20° /12° | 0 mm | 5 | |
| Aug. 2 | Overcast | 18° /13° | 0 mm | 5 | |
| Aug. 3 | Overcast | 17° /12° | 0 mm | 4 | |
| Aug. 4 | Overcast | 17° /11° | 0 mm | 4 | |
| Aug. 5 | Overcast | 17° /12° | 0 mm | 4 | |
| Aug. 6 |  Cloudy | 18° /13° | 3.4 mm | 4 | |
| Aug. 7 | Overcast | 18° /11° | 0 mm | 5 | |
| Aug. 8 | Overcast | 19° /12° | 0 mm | 5 | |
| Aug. 9 | Overcast | 19° /13° | 0 mm | 4 | |
| Aug. 10 | Overcast | 21° /14° | 0 mm | 5 | |
| Aug. 11 | Overcast | 18° /13° | 0 mm | 4 | |
| Aug. 12 |  Patchy rain possible | 19° /12° | 0.1 mm | 4 | |
| Aug. 13 | Overcast | 18° /11° | 0 mm | 5 | |
| Aug. 14 |  Sunny | 19° /12° | 0.1 mm | 5 | |
| Aug. 15 | Cloudy | 18° /14° | 1.4 mm | 4 | |
| Aug. 16 |  Partly cloudy | 18° /13° | 8.5 mm | 5 | |
| Aug. 17 |  Moderate or heavy rain shower | 17° /12° | 15.1 mm | 4 | |
| Aug. 18 | Moderate rain at times | 18° /12° | 1.1 mm | 4 | |
| Aug. 19 | Overcast | 18° /11° | 0 mm | 4 | |
| Aug. 20 | Partly cloudy | 20° /11° | 0.2 mm | 6 | |
| Aug. 21 | Patchy rain possible | 20° /12° | 0.2 mm | 5 | |
| Aug. 22 |  Heavy rain at times | 17° /12° | 2.2 mm | 4 | |
| Aug. 23 | Moderate or heavy rain shower | 18° /12° | 9.9 mm | 4 | |
| Aug. 24 | Patchy rain possible | 17° /11° | 0.9 mm | 4 | |
| Aug. 25 | Sunny | 19° /12° | 0 mm | 5 | |
| Aug. 26 | Sunny | 19° /13° | 0 mm | 5 | |
| Aug. 27 | Patchy rain possible | 18° /12° | 0.1 mm | 4 | |
| Aug. 28 | Sunny | 19° /11° | 0 mm | 5 | |
| Aug. 29 | Sunny | 21° /12° | 0 mm | 5 | |
| Aug. 30 | Sunny | 19° /12° | 0 mm | 5 | |
| Aug. 31 | Sunny | 17° /12° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Coos Bay in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Coos Bay forecast closer to your planned date for the most up-to-date weather information.
Change Month
Coos Bay in August - FAQ
What are the expected maximum and minimum temperatures in Coos Bay during August?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Coos Bay during August?
In August, Coos Bay can expect light to moderate rainfall, totaling 43.1 mm across approximately 7 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Coos Bay during August?
The average wind speed in Coos Bay during August is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Coos Bay
Explore the daily rainfall trends and prepare for Coos Bays August weather 💧
Typically, Coos Bay has 7 rainy days in August with a total of 43.1 mm of rainfall.
UV exposure in Coos Bay during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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