Best Time to Drive: Portland, OR to Grants Pass, OR

The best time to drive from Portland, OR to Grants Pass, OR is May, June, when temperatures are comfortable and weather conditions are most predictable. February tends to be less ideal due to weather or daylight conditions.

Best month

May

Also great

June

Also great

August

Month-by-Month Driving Conditions

Jan

Challenging 50°F

Feb

Challenging 52°F

Mar

Fair 54°F

Apr

Excellent 58°F

May

Excellent 62°F

Jun

Excellent 66°F

Jul

Excellent 70°F

Aug

Excellent 70°F

Sep

Excellent 68°F

Oct

Great 62°F

Nov

Challenging 55°F

Dec

Challenging 50°F

Best Good/Fair Challenging

Average Conditions by Month

January

Avg temp 50°F

Rainy days ~5

Rating Challenging

February

Avg temp 52°F

Rainy days ~4

Rating Challenging

March

Avg temp 54°F

Rainy days ~4

Rating Fair

April

Avg temp 58°F

Rainy days ~2

Rating Excellent

May

Avg temp 62°F

Rainy days ~1

Rating Excellent

June

Avg temp 66°F

Rainy days ~0

Rating Excellent

July

Avg temp 70°F

Rainy days ~0

Rating Excellent

August

Avg temp 70°F

Rainy days ~0

Rating Excellent

September

Avg temp 68°F

Rainy days ~1

Rating Excellent

October

Avg temp 62°F

Rainy days ~2

Rating Great

November

Avg temp 55°F

Rainy days ~4

Rating Challenging

December

Avg temp 50°F

Rainy days ~5

Rating Challenging

Climate Context

Portland, OR

Pacific Coast

Grants Pass, OR

Pacific Coast

Ready to plan? See the full trip plan from Portland, OR to Grants Pass, OR with stops, fuel costs, and directions.

Considering flying instead? Compare driving vs flying for this route.