Vancouver, WA weather in August
Expect warm, mostly dry weather in Vancouver in August, with highs near 82°F and lows near 59°F. Rain falls on about 4 days. It is one of the warmest months in Vancouver. Great for outdoor plans.
- Normal high
- 82°F
- Normal low
- 59°F
- Wet days
- 4
- 0.5 in total
- Muggy days
- 0
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 84°F | 80°F |
| Normal low | 60°F | 57°F |
| Chance of a wet day | 10% | 16% |
| Sunrise / sunset | 5:54 am / 8:39 pm | 6:30 am / 7:51 pm |
| Daylight | 14.8 h | 13.3 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical August day
- 6 am60°Fdew point 54°F
- 9 am66°Fdew point 55°F
- Noon74°Fdew point 54°F
- 3 pm80°Fdew point 53°F
- 6 pm78°Fdew point 54°F
- 9 pm70°Fdew point 55°F
NOAA hourly normals (local standard time) from Portland Intl Airport (4 mi away); average wind 7 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F13 of 31
- Hot dayshigh 90°F or more5 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow4 of 31
- Notable rainat least 0.10 in2 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 0.5 in; a dry August brings about 0.1 in and a wet one about 0.8 in (25th and 75th percentiles). Days with half an inch or more are rare.
How August varies from year to year
- Warmest August, 1991-20202017: average high 87°F
- Coolest August1999: average high 79°F
- Wettest August2004: 2.7 in
- Driest August1998: no measurable precipitation
- Highest reading105°F (August 3, 2017)
- Lowest reading47°F (August 24, 1992)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 82°F | 82°F | 77°F |
| Normal low | 59°F | 59°F | 54°F |
| Wet days | 4 | 4 | 7 |
| Comfortable days | 14 | 13 | 18 |
| Daylight | 15.3 h | 14.1 h | 12.5 h |
Highs change by 0°F from July and -5°F into September.
Nearby alternatives in August
- Cooler: Cannon Beach, OR65 mi · high 69°F · 6 wet days
How Vancouver ranks in August
- Normal high266th warmest of 378 cities; 3rd of 9 in Washington
- Wet days75th driest of 378
- Comfortable days38th most of 341
What to pack for Vancouver in August
- Sunglasses and sunscreen – about 14.1 hours of daylight and highs near 82°F
Heating and cooling
August has 7 heating degree days and 181 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How hot is Vancouver in August?
The normal high is 82°F and the normal low is 59°F. From 1991 to 2020 the hottest August reading was 105°F (August 3, 2017).
Does it rain a lot in Vancouver in August?
About 4 days in August have at least 0.01 in of precipitation, and the normal total is 0.5 in. The wettest August in 1991-2020 was in 2004 (2.7 in); the driest was in 1998, with no measurable precipitation.
Is August a good time to visit Vancouver?
August ranks 5th of 12 months on our comfort score for Vancouver (70 out of 100). It has about 13 comfortable days and about 5 days at 90°F or hotter. The best month is June.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Portland Intl Airport (USW00024229), 4.4 mi SE of the city center, 19 ft (172 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Portland International Airport (726980-24229), 3.9 mi SE of the city center, 22 ft (169 ft lower than the city). Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).