Oak Harbor climate

Oak Harbor Weather in August

NOAA 1991-2020 normals for Whidbey Island Nas, 6.6 km from Oak Harbor

Average highs run from 70°F on August 1 to 69°F on August 31, and lows from 55°F to 52°F. Normal precipitation for the month is 0.85 in over about 6 wet days.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Oak Harbor, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
70°F
Average low
54°F
Precipitation
0.85 in
Record high
98°FAug 8, 1960
Record low
38°FAug 29, 1980
Chance of a freeze
0%
Daylight
15 h 01 min to 13 h 27 min
Cloud cover
49%
Humidity
78%
Dew point
55°F
Wind
3.1 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 170°F55°F92°F 189845°F 193115%0%
Aug 270°F55°F84°F 189843°F 190815%0%
Aug 370°F55°F85°F 195242°F 190815%0%
Aug 470°F55°F87°F 190445°F 193116%0%
Aug 570°F55°F91°F 189842°F 198216%0%
Aug 670°F55°F86°F 190142°F 193916%0%
Aug 770°F55°F87°F 197243°F 196916%0%
Aug 870°F55°F98°F 196043°F 197416%0%
Aug 970°F55°F97°F 196043°F 195916%0%
Aug 1070°F55°F90°F 198144°F 199117%0%
Aug 1170°F55°F90°F 198140°F 196617%0%
Aug 1270°F54°F87°F 197744°F 189917%0%
Aug 1370°F54°F88°F 200245°F 195317%0%
Aug 1470°F54°F90°F 201043°F 193118%0%
Aug 1570°F54°F92°F 201043°F 193718%0%
Aug 1670°F54°F92°F 196740°F 198618%0%
Aug 1770°F54°F90°F 197741°F 196618%0%
Aug 1870°F54°F85°F 194042°F 196619%0%
Aug 1970°F54°F84°F 200942°F 193419%0%
Aug 2070°F54°F86°F 196641°F 194520%0%
Aug 2170°F54°F88°F 195840°F 190820%0%
Aug 2270°F53°F85°F 195842°F 196221%0%
Aug 2370°F53°F85°F 192640°F 190821%0%
Aug 2470°F53°F91°F 189841°F 195922%0%
Aug 2569°F53°F88°F 195840°F 195922%0%
Aug 2669°F53°F90°F 193340°F 196923%0%
Aug 2769°F53°F86°F 193541°F 197823%0%
Aug 2869°F53°F86°F 193540°F 189924%0%
Aug 2969°F53°F86°F 197438°F 198024%0%
Aug 3069°F53°F84°F 194440°F 195925%0%
Aug 3169°F52°F83°F 198741°F 196925%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Oak Harbor, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 5:46 AM, sunset 8:47 PM
August 31
sunrise 6:27 AM, sunset 7:54 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024255 (Whidbey Island Nas), public domain. Records: NOAA GHCN-Daily, station USC00451783, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.