Saint Peter Port climate

Saint Peter Port Weather in July

1991-2020 means of the daily record at Guernsey: Airport (GHCN UKE00107663), 5 km from Saint Peter Port

Average highs run from 19°C on July 1 to 20°C on July 31, and lows from 13°C to 14°C. Normal precipitation for the month is 43 mm over about 9 wet days.

July day by day

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

Normal daily high and low temperature at Saint Peter Port, in °C, with the record for each date.5101520253035151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

July at a glance

Average high
20°C
Average low
14°C
Precipitation
43 mm
Record high
33°CJul 18, 2016
Record low
8°CJul 17, 1980
Daylight
16 h 12 min to 15 h 12 min
Cloud cover
64%
Humidity
89%
Dew point
14°C
Wind
19.8 km/h

Every day of the month

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

DateNormal highNormal lowRecord highRecord lowChance wet
Jul 119°C13°C30°C 19769°C 197836%
Jul 219°C13°C29°C 20069°C 196536%
Jul 319°C13°C26°C 200610°C 198036%
Jul 419°C13°C25°C 197610°C 196736%
Jul 519°C14°C30°C 20269°C 196836%
Jul 619°C13°C27°C 202610°C 196235%
Jul 719°C13°C28°C 20189°C 199634%
Jul 819°C13°C29°C 202611°C 196533%
Jul 920°C13°C29°C 202611°C 196332%
Jul 1019°C13°C29°C 197110°C 197230%
Jul 1119°C13°C30°C 202210°C 197229%
Jul 1219°C13°C28°C 20259°C 197228%
Jul 1319°C14°C29°C 20039°C 197228%
Jul 1420°C14°C27°C 198310°C 197227%
Jul 1520°C14°C29°C 198310°C 197726%
Jul 1620°C14°C30°C 202210°C 198025%
Jul 1720°C14°C27°C 20068°C 198024%
Jul 1821°C14°C33°C 201610°C 196524%
Jul 1920°C15°C28°C 200610°C 198823%
Jul 2020°C14°C29°C 199011°C 198024%
Jul 2120°C14°C30°C 19969°C 198025%
Jul 2220°C14°C32°C 201910°C 197926%
Jul 2320°C14°C26°C 201911°C 198126%
Jul 2420°C15°C26°C 198510°C 198626%
Jul 2521°C14°C26°C 200111°C 197725%
Jul 2620°C15°C26°C 200111°C 198726%
Jul 2720°C15°C27°C 200110°C 197227%
Jul 2821°C14°C28°C 200111°C 197227%
Jul 2920°C15°C26°C 198311°C 202027%
Jul 3021°C14°C30°C 198310°C 197028%
Jul 3120°C14°C30°C 199011°C 196529%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Saint Peter Port, in percent.0102030401102030
  • Chance of a wet day

Sunrise and sunset

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

July 1
sunrise 5:08 AM, sunset 9:20 PM
July 31
sunrise 5:40 AM, sunset 8:52 PM

Every day of July: sun and moon

Other months

Sources

Records: NOAA GHCN-Daily, station UKE00107663, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.