Juneau climate

Juneau Weather in August

NOAA 1991-2020 normals for Juneau Dwtn, 0.6 km from Juneau

Average highs run from 64°F on August 1 to 59°F on August 31, and lows from 53°F to 49°F. Normal precipitation for the month is 7.76 in.

August day by day

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

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

August at a glance

Average high
62°F
Average low
51°F
Precipitation
7.76 in
Record high
85°FAug 14, 2026
Record low
27°FAug 25, 1948
Chance of a freeze
0%
Daylight
16 h 27 min to 14 h 04 min
Cloud cover
74%
Humidity
89%
Dew point
46°F
Wind
5.4 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 164°F53°F82°F 197639°F 19730%
Aug 264°F53°F83°F 199942°F 19750%
Aug 364°F53°F80°F 201538°F 19750%
Aug 464°F53°F82°F 202439°F 19650%
Aug 564°F52°F81°F 201738°F 19660%
Aug 664°F52°F81°F 202339°F 19910%
Aug 764°F52°F83°F 201940°F 20060%
Aug 864°F52°F82°F 195740°F 19410%
Aug 964°F52°F83°F 195740°F 19630%
Aug 1064°F52°F84°F 200438°F 19590%
Aug 1164°F52°F83°F 200539°F 19490%
Aug 1263°F52°F82°F 200542°F 19650%
Aug 1363°F52°F80°F 202639°F 19650%
Aug 1463°F52°F85°F 202640°F 19410%
Aug 1563°F51°F83°F 200439°F 19730%
Aug 1663°F51°F84°F 200435°F 19730%
Aug 1763°F51°F78°F 200439°F 19500%
Aug 1863°F51°F79°F 197734°F 19730%
Aug 1962°F51°F80°F 197737°F 19490%
Aug 2062°F51°F83°F 197739°F 19490%
Aug 2162°F50°F78°F 197737°F 19420%
Aug 2262°F50°F79°F 197938°F 19540%
Aug 2361°F50°F80°F 197935°F 19690%
Aug 2461°F50°F76°F 197931°F 19690%
Aug 2561°F50°F77°F 194127°F 19480%
Aug 2661°F50°F76°F 194129°F 19480%
Aug 2760°F49°F76°F 201637°F 19700%
Aug 2860°F49°F76°F 194132°F 19480%
Aug 2960°F49°F74°F 195133°F 19480%
Aug 3060°F49°F75°F 194935°F 19600%
Aug 3159°F49°F74°F 196327°F 19410%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Juneau, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (AKDT).

August 1
sunrise 4:50 AM, sunset 9:17 PM
August 31
sunrise 5:55 AM, sunset 7:59 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00504094 (Juneau Dwtn), public domain. Records: NOAA GHCN-Daily, station USW00025309, 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.