Keflavík Weather in July
Average highs run from 12°C on July 1 to 13°C on July 31, and lows from 8°C to 9°C. Normal precipitation for the month is 87 mm over about 16 wet days.
July day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
July at a glance
- Average high
- 13°C
- Average low
- 9°C
- Precipitation
- 87 mm
- Reanalysis high
- 21°CJul 30, 2008
- Reanalysis low
- 5°CJul 7, 1995
- Daylight
- 20 h 45 min to 18 h 01 min
- Cloud cover
- 79%
- Humidity
- 85%
- Dew point
- 8°C
- Wind
- 14.4 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Jul 1 | 12°C | 8°C | 16°C 2000 | 6°C 2013 | 49% |
| Jul 2 | 12°C | 8°C | 16°C 2007 | 6°C 1993 | 48% |
| Jul 3 | 12°C | 9°C | 15°C 1995 | 6°C 2013 | 48% |
| Jul 4 | 12°C | 9°C | 15°C 1994 | 7°C 1993 | 47% |
| Jul 5 | 12°C | 9°C | 17°C 1994 | 7°C 1993 | 48% |
| Jul 6 | 12°C | 9°C | 18°C 1994 | 5°C 1995 | 48% |
| Jul 7 | 12°C | 9°C | 16°C 2008 | 5°C 1995 | 49% |
| Jul 8 | 12°C | 9°C | 17°C 1991 | 6°C 1995 | 50% |
| Jul 9 | 12°C | 9°C | 19°C 1991 | 6°C 1993 | 49% |
| Jul 10 | 12°C | 9°C | 15°C 1991 | 6°C 1993 | 48% |
| Jul 11 | 12°C | 9°C | 17°C 1995 | 7°C 2003 | 48% |
| Jul 12 | 12°C | 9°C | 18°C 2009 | 7°C 2013 | 47% |
| Jul 13 | 13°C | 9°C | 17°C 1991 | 7°C 2006 | 46% |
| Jul 14 | 13°C | 9°C | 16°C 2007 | 6°C 1992 | 46% |
| Jul 15 | 13°C | 9°C | 15°C 2007 | 6°C 1992 | 45% |
| Jul 16 | 13°C | 9°C | 16°C 2003 | 7°C 1995 | 46% |
| Jul 17 | 13°C | 9°C | 17°C 2003 | 6°C 1995 | 47% |
| Jul 18 | 13°C | 9°C | 17°C 2003 | 5°C 1995 | 47% |
| Jul 19 | 13°C | 9°C | 17°C 2005 | 7°C 2015 | 47% |
| Jul 20 | 13°C | 9°C | 17°C 2009 | 6°C 1995 | 47% |
| Jul 21 | 13°C | 9°C | 16°C 2009 | 6°C 1995 | 48% |
| Jul 22 | 13°C | 9°C | 18°C 2005 | 5°C 1992 | 48% |
| Jul 23 | 13°C | 9°C | 18°C 2013 | 6°C 1992 | 47% |
| Jul 24 | 13°C | 9°C | 16°C 2013 | 5°C 2009 | 48% |
| Jul 25 | 13°C | 10°C | 17°C 2008 | 6°C 2009 | 48% |
| Jul 26 | 13°C | 10°C | 16°C 2005 | 7°C 1992 | 48% |
| Jul 27 | 13°C | 10°C | 17°C 2016 | 6°C 1993 | 50% |
| Jul 28 | 13°C | 10°C | 15°C 2017 | 6°C 1993 | 50% |
| Jul 29 | 13°C | 10°C | 18°C 2008 | 7°C 1993 | 50% |
| Jul 30 | 13°C | 9°C | 21°C 2008 | 7°C 1993 | 49% |
| Jul 31 | 13°C | 9°C | 17°C 2008 | 7°C 1993 | 49% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT).
- July 1
- sunrise 3:11 AM, sunset 11:56 PM
- July 31
- sunrise 4:35 AM, sunset 10:36 PM
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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.