Truro climate

Truro Weather in August

NASA POWER reanalysis for the half-degree grid cell around Truro, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 19°C on August 1 to 18°C on August 31, and lows from 15°C to 14°C. Normal precipitation for the month is 87 mm over about 16 wet days.

August day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Truro, in °C, with the record for each date.1015202530151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

August at a glance

Average high
18°C
Average low
15°C
Precipitation
87 mm
Reanalysis high
26°CAug 20, 1995
Reanalysis low
11°CAug 31, 1992
Daylight
15 h 15 min to 13 h 34 min
Cloud cover
70%
Humidity
84%
Dew point
14°C
Wind
22.3 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Aug 119°C15°C26°C 199513°C 199848%
Aug 219°C15°C24°C 199513°C 199849%
Aug 319°C15°C23°C 199514°C 200349%
Aug 419°C15°C24°C 199514°C 199649%
Aug 519°C15°C23°C 201814°C 199849%
Aug 619°C15°C22°C 199513°C 199649%
Aug 719°C15°C22°C 202013°C 199648%
Aug 819°C15°C24°C 200313°C 200548%
Aug 919°C15°C24°C 200314°C 200247%
Aug 1019°C15°C23°C 199513°C 201148%
Aug 1118°C15°C24°C 199514°C 200248%
Aug 1218°C15°C23°C 202014°C 199449%
Aug 1318°C15°C22°C 202013°C 199450%
Aug 1418°C15°C20°C 199712°C 199450%
Aug 1518°C15°C21°C 199513°C 200851%
Aug 1618°C15°C23°C 199513°C 201552%
Aug 1718°C15°C25°C 199512°C 199354%
Aug 1818°C15°C24°C 199513°C 201455%
Aug 1918°C15°C25°C 199513°C 201455%
Aug 2018°C15°C26°C 199513°C 201454%
Aug 2118°C15°C24°C 199513°C 201453%
Aug 2218°C15°C22°C 199513°C 199352%
Aug 2318°C15°C21°C 200012°C 199351%
Aug 2418°C15°C23°C 200312°C 199351%
Aug 2518°C15°C20°C 200713°C 199348%
Aug 2618°C15°C21°C 199113°C 199648%
Aug 2718°C15°C22°C 199112°C 199347%
Aug 2818°C15°C21°C 199113°C 200146%
Aug 2918°C15°C20°C 199112°C 199244%
Aug 3018°C15°C21°C 200512°C 199244%
Aug 3118°C14°C21°C 199111°C 199243%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Truro, in percent.02040601102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+1).

August 1
sunrise 5:49 AM, sunset 9:04 PM
August 31
sunrise 6:33 AM, sunset 8:07 PM

Every day of August: sun and moon

Other months

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: 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.