Helsinki climate

Helsinki Weather in July

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

Average highs run from 17°C on July 1 to 20°C on July 31, and lows from 13°C to 16°C. Normal precipitation for the month is 56 mm over about 9 wet days.

July day by day

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

Normal daily high and low temperature at Helsinki, in °C, with the record for each date.51015202530151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

July at a glance

Average high
19°C
Average low
15°C
Precipitation
56 mm
Reanalysis high
28°CJul 28, 2019
Reanalysis low
9°CJul 5, 1992
Daylight
18 h 47 min to 16 h 57 min
Cloud cover
63%
Humidity
81%
Dew point
14°C
Wind
13.7 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 117°C13°C22°C 201110°C 199535%
Jul 218°C13°C23°C 201110°C 199534%
Jul 318°C14°C22°C 201110°C 199233%
Jul 418°C14°C22°C 200510°C 199234%
Jul 518°C14°C23°C 20059°C 199234%
Jul 618°C14°C25°C 200510°C 201735%
Jul 718°C14°C23°C 19979°C 201734%
Jul 818°C14°C25°C 201010°C 199234%
Jul 919°C14°C23°C 201111°C 199334%
Jul 1019°C15°C27°C 200510°C 199534%
Jul 1119°C15°C24°C 201010°C 199533%
Jul 1219°C15°C26°C 201011°C 199533%
Jul 1319°C15°C26°C 201011°C 201533%
Jul 1419°C15°C26°C 201812°C 199533%
Jul 1519°C15°C27°C 201810°C 199533%
Jul 1619°C15°C26°C 201811°C 200633%
Jul 1719°C15°C26°C 201812°C 199634%
Jul 1819°C15°C25°C 201811°C 199634%
Jul 1919°C15°C24°C 201810°C 200633%
Jul 2019°C15°C23°C 202010°C 200632%
Jul 2120°C16°C25°C 201111°C 199632%
Jul 2220°C16°C25°C 199711°C 201232%
Jul 2320°C16°C26°C 201412°C 199633%
Jul 2420°C16°C24°C 201813°C 199633%
Jul 2520°C16°C25°C 201414°C 199533%
Jul 2620°C16°C26°C 201412°C 200633%
Jul 2720°C16°C27°C 201911°C 200632%
Jul 2820°C16°C28°C 201912°C 200634%
Jul 2920°C16°C26°C 200313°C 200034%
Jul 3020°C16°C26°C 200312°C 200634%
Jul 3120°C16°C26°C 200311°C 200634%

Chance of rain

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

Sunrise and sunset

Times for 2026, local time (GMT+3).

July 1
sunrise 4:00 AM, sunset 10:47 PM
July 31
sunrise 4:57 AM, sunset 9:54 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.