St. John's climate

St. John's Weather in July

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

Average highs run from 13°C on July 1 to 17°C on July 31, and lows from 9°C to 13°C. Normal precipitation for the month is 94 mm over about 15 wet days.

July day by day

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

Normal daily high and low temperature at St. John's, in °C, with the record for each date.0510152025151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

July at a glance

Average high
15°C
Average low
11°C
Precipitation
94 mm
Reanalysis high
23°CJul 26, 2013
Reanalysis low
4°CJul 2, 2018
Daylight
15 h 55 min to 14 h 59 min
Cloud cover
74%
Humidity
90%
Dew point
12°C
Wind
18.0 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
Jul 113°C9°C20°C 19995°C 200350%
Jul 213°C9°C19°C 20084°C 201850%
Jul 313°C9°C18°C 20115°C 201850%
Jul 414°C10°C19°C 20185°C 199252%
Jul 514°C10°C19°C 20095°C 199250%
Jul 614°C10°C20°C 20136°C 199350%
Jul 714°C10°C20°C 20086°C 199349%
Jul 814°C10°C19°C 19957°C 199148%
Jul 915°C10°C19°C 20107°C 200348%
Jul 1015°C11°C21°C 20067°C 201647%
Jul 1115°C11°C19°C 20098°C 200347%
Jul 1215°C11°C20°C 20148°C 200348%
Jul 1315°C11°C19°C 19957°C 199248%
Jul 1415°C11°C21°C 20137°C 199246%
Jul 1516°C11°C21°C 20138°C 201846%
Jul 1616°C12°C21°C 19988°C 199247%
Jul 1716°C12°C21°C 20168°C 199548%
Jul 1816°C12°C20°C 20177°C 199549%
Jul 1916°C12°C20°C 20087°C 199548%
Jul 2016°C12°C21°C 20189°C 199148%
Jul 2116°C12°C22°C 20148°C 200249%
Jul 2216°C12°C21°C 20148°C 200248%
Jul 2316°C12°C20°C 20049°C 199248%
Jul 2416°C13°C20°C 20039°C 201547%
Jul 2517°C13°C21°C 20087°C 199347%
Jul 2617°C13°C23°C 20137°C 199348%
Jul 2717°C13°C21°C 20137°C 199347%
Jul 2817°C13°C21°C 20088°C 199747%
Jul 2917°C13°C20°C 19949°C 199346%
Jul 3017°C13°C21°C 20149°C 199145%
Jul 3117°C13°C22°C 201410°C 201546%

Chance of rain

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

Sunrise and sunset

Times for 2026, local time (GMT-2:30).

July 1
sunrise 5:07 AM, sunset 9:02 PM
July 31
sunrise 5:37 AM, sunset 8:36 PM

Every day of July: 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 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.