Reykjanesbær Weather in August
Average highs run from 15°C on August 1 to 12°C on August 31, and lows from to 8°C. Normal precipitation for the month is 115 mm over about 19 wet days.
August day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 13°C
- Precipitation
- 115 mm
- Record high
- 23°CAug 12, 2004
- Record low
- 0°CAug 13, 1988
- Daylight
- 17 h 54 min to 14 h 39 min
- Cloud cover
- 78%
- Humidity
- 86%
- Dew point
- 8°C
- Wind
- 15.8 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 | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 15°C | 22°C 2008 | 4°C 1964 | 50% | |
| Aug 2 | 14°C | 20°C 2008 | 0°C 2019 | 50% | |
| Aug 3 | 14°C | 19°C 2003 | 5°C 1986 | 52% | |
| Aug 4 | 14°C | 17°C 1991 | 5°C 1958 | 51% | |
| Aug 5 | 14°C | 18°C 1994 | 5°C 2022 | 50% | |
| Aug 6 | 14°C | 17°C 2011 | 5°C 1977 | 50% | |
| Aug 7 | 14°C | 19°C 1964 | 6°C 1962 | 51% | |
| Aug 8 | 13°C | 19°C 1964 | 5°C 1972 | 52% | |
| Aug 9 | 14°C | 17°C 2010 | 5°C 1972 | 52% | |
| Aug 10 | 14°C | 17°C 2021 | 5°C 1993 | 52% | |
| Aug 11 | 14°C | 18°C 2014 | 6°C 1986 | 51% | |
| Aug 12 | 14°C | 23°C 2004 | 5°C 1959 | 53% | |
| Aug 13 | 14°C | 19°C 2004 | 0°C 1988 | 53% | |
| Aug 14 | 13°C | 9°C | 17°C 1977 | 3°C 1993 | 55% |
| Aug 15 | 14°C | 17°C 2004 | 6°C 1970 | 54% | |
| Aug 16 | 14°C | 17°C 1967 | 4°C 1993 | 54% | |
| Aug 17 | 14°C | 17°C 2003 | 5°C 1994 | 54% | |
| Aug 18 | 14°C | 18°C 2020 | 5°C 1964 | 54% | |
| Aug 19 | 14°C | 18°C 2010 | 3°C 1972 | 56% | |
| Aug 20 | 14°C | 17°C 2010 | 4°C 1958 | 56% | |
| Aug 21 | 14°C | 17°C 2012 | 4°C 1976 | 56% | |
| Aug 22 | 14°C | 19°C 2003 | 4°C 1984 | 57% | |
| Aug 23 | 13°C | 17°C 2016 | 5°C 1964 | 58% | |
| Aug 24 | 13°C | 17°C 2023 | 4°C 1964 | 60% | |
| Aug 25 | 13°C | 18°C 2015 | 3°C 1965 | 62% | |
| Aug 26 | 13°C | 17°C 2025 | 3°C 2024 | 64% | |
| Aug 27 | 12°C | 16°C 2025 | 2°C 1956 | 64% | |
| Aug 28 | 12°C | 16°C 1960 | 2°C 1956 | 66% | |
| Aug 29 | 12°C | 15°C 1960 | 3°C 1983 | 67% | |
| Aug 30 | 12°C | 15°C 2022 | 3°C 1983 | 68% | |
| Aug 31 | 12°C | 8°C | 15°C 2021 | 3°C 2002 | 68% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT).
- August 1
- sunrise 4:38 AM, sunset 10:32 PM
- August 31
- sunrise 6:10 AM, sunset 8:49 PM
Other months
Sources
Records: NOAA GHCN-Daily, station ICW00016201, 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.