Sarnia climate

Sarnia Weather in June

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

Average highs run from 21°C on June 1 to 25°C on June 30, and lows from 10°C to 15°C. Normal precipitation for the month is 81 mm over about 15 wet days.

June day by day

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

Normal daily high and low temperature at Sarnia, in °C, with the record for each date.010203040151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

June at a glance

Average high
23°C
Average low
13°C
Precipitation
81 mm
Reanalysis high
33°CJun 27, 2005
Reanalysis low
3°CJun 1, 1993
Daylight
15 h 09 min to 15 h 19 min
Cloud cover
64%
Humidity
75%
Dew point
14°C
Wind
15.1 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
Jun 121°C10°C27°C 20073°C 199344%
Jun 221°C11°C27°C 20074°C 199444%
Jun 322°C11°C25°C 20205°C 201944%
Jun 422°C11°C27°C 20204°C 200946%
Jun 522°C11°C29°C 20056°C 199846%
Jun 622°C11°C29°C 19996°C 199846%
Jun 722°C12°C30°C 20057°C 200147%
Jun 822°C12°C29°C 20055°C 199446%
Jun 922°C12°C30°C 20055°C 199446%
Jun 1023°C12°C30°C 19998°C 201146%
Jun 1123°C12°C30°C 19998°C 200647%
Jun 1223°C13°C30°C 19998°C 200948%
Jun 1323°C13°C28°C 20018°C 202047%
Jun 1424°C13°C29°C 20017°C 202049%
Jun 1524°C13°C30°C 19947°C 199950%
Jun 1624°C14°C31°C 19948°C 200350%
Jun 1724°C14°C31°C 19949°C 200250%
Jun 1824°C14°C31°C 19947°C 199950%
Jun 1924°C14°C31°C 19958°C 200348%
Jun 2024°C14°C32°C 19956°C 199249%
Jun 2124°C14°C29°C 20127°C 199250%
Jun 2225°C15°C29°C 19984°C 199251%
Jun 2325°C15°C29°C 20029°C 199250%
Jun 2425°C15°C31°C 20059°C 199249%
Jun 2525°C15°C30°C 20039°C 199248%
Jun 2625°C15°C31°C 200510°C 200447%
Jun 2725°C15°C33°C 200510°C 201747%
Jun 2825°C15°C30°C 201210°C 199248%
Jun 2925°C15°C29°C 19989°C 199347%
Jun 3025°C15°C30°C 201210°C 201047%

Chance of rain

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

Sunrise and sunset

Times for 2026, local time (EDT).

June 1
sunrise 5:53 AM, sunset 9:02 PM
June 30
sunrise 5:54 AM, sunset 9:13 PM

Every day of June: 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.