Eastham climate

Eastham Weather in August

NOAA 1991-2020 normals for Chatham, 19.3 km from Eastham

Average highs run from 77°F on August 1 to 74°F on August 31, and lows from 64°F to 62°F. Normal precipitation for the month is 3.20 in over about 8 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 Eastham, in °F, with the record for each date.405060708090100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
76°F
Average low
63°F
Precipitation
3.20 in
Record high
98°FAug 2, 2006
Record low
49°FAug 25, 2004
Chance of a freeze
0%
Daylight
14 h 24 min to 13 h 10 min
Cloud cover
52%
Humidity
85%
Dew point
64°F
Wind
11.4 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 177°F64°F89°F 202057°F 201027%0%
Aug 277°F64°F98°F 200656°F 201027%0%
Aug 377°F64°F93°F 200655°F 202527%0%
Aug 477°F64°F87°F 202257°F 202527%0%
Aug 577°F64°F87°F 202458°F 199727%0%
Aug 677°F64°F89°F 201054°F 201327%0%
Aug 777°F64°F88°F 202254°F 200427%0%
Aug 877°F64°F88°F 202255°F 200427%0%
Aug 977°F63°F88°F 202254°F 199927%0%
Aug 1077°F63°F86°F 201050°F 199927%0%
Aug 1176°F63°F88°F 201657°F 200628%0%
Aug 1276°F63°F87°F 201656°F 199728%0%
Aug 1376°F63°F88°F 202054°F 199728%0%
Aug 1476°F63°F89°F 201657°F 200627%0%
Aug 1576°F63°F86°F 201658°F 201027%0%
Aug 1676°F63°F89°F 201858°F 201427%0%
Aug 1776°F63°F91°F 200256°F 200027%0%
Aug 1876°F63°F85°F 200953°F 200027%0%
Aug 1976°F63°F86°F 202251°F 200727%0%
Aug 2076°F63°F85°F 200953°F 199927%0%
Aug 2176°F63°F87°F 202353°F 200027%0%
Aug 2275°F63°F87°F 200553°F 200426%0%
Aug 2375°F63°F85°F 202052°F 200426%0%
Aug 2475°F62°F84°F 202150°F 200426%0%
Aug 2575°F62°F89°F 202049°F 200426%0%
Aug 2675°F62°F86°F 202152°F 200126%0%
Aug 2775°F62°F89°F 202153°F 201926%0%
Aug 2875°F62°F90°F 201855°F 202526%0%
Aug 2974°F62°F91°F 201853°F 200026%0%
Aug 3074°F62°F89°F 201850°F 201426%0%
Aug 3174°F62°F89°F 201051°F 200326%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Eastham, 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 (EDT).

August 1
sunrise 5:34 AM, sunset 7:58 PM
August 31
sunrise 6:05 AM, sunset 7:15 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00191386 (Chatham), public domain. Records: NOAA GHCN-Daily, station USW00094624, 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.