Weather on October 21 in Reykjavik
Historical weather data for October 21 in Reykjavik, Iceland
Based on 55 years of data from REYKJAVIK
About This Date
October 21st in Reykjavik, Iceland typically brings chilly fall weather, with average highs around 7°C and lows near 2°C. Over 55 years of records, the warmest October 21st was in 1975 (9°C average), while the coldest was 1986 (-2°C) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 38% of October 21st dates historically, with the wettest October 21st recording 1.27" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for October 21st in Reykjavik? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 3°C (38°F) | 2°C (35°F) | 1.27" |
| 2024 | 3°C (38°F) | -- | -- |
| 2023 | 8°C (47°F) | 5°C (41°F) | -- |
| 2022 | 7°C (44°F) | 2°C (35°F) | -- |
| 2021 | 8°C (46°F) | 3°C (37°F) | -- |
| 2020 | 5°C (41°F) | 2°C (35°F) | -- |
| 2019 | 8°C (47°F) | 1°C (33°F) | -- |
| 2018 | 6°C (42°F) | 2°C (36°F) | -- |
| 2017 | 6°C (43°F) | 3°C (38°F) | -- |
| 2016 | 11°C (51°F) | 7°C (45°F) | -- |
| 2015 | 7°C (45°F) | 3°C (37°F) | -- |
| 2014 | 1°C (33°F) | -2°C (29°F) | -- |
| 2013 | 4°C (39°F) | 1°C (33°F) | -- |
| 2012 | 7°C (45°F) | -1°C (30°F) | -- |
| 2011 | 7°C (44°F) | 3°C (38°F) | -- |
| 2010 | 3°C (37°F) | -1°C (31°F) | -- |
| 2009 | 6°C (43°F) | 2°C (36°F) | -- |
| 2008 | 3°C (37°F) | -1°C (31°F) | -- |
| 2007 | 7°C (45°F) | 4°C (39°F) | -- |
| 2006 | 7°C (44°F) | 0°C (32°F) | -- |
| 2005 | 4°C (40°F) | -2°C (29°F) | 0" |
| 2004 | 8°C (46°F) | 3°C (37°F) | 0" |
| 2003 | 6°C (42°F) | 2°C (35°F) | 0" |
| 2002 | 3°C (37°F) | -2°C (29°F) | 0" |
| 2001 | 11°C (51°F) | 3°C (38°F) | 0" |
| 2000 | 6°C (42°F) | 2°C (36°F) | 0" |
| 1999 | 10°C (50°F) | 6°C (43°F) | 0.01" |
| 1998 | 4°C (40°F) | 1°C (34°F) | 0" |
| 1997 | 8°C (46°F) | 6°C (42°F) | 0.22" |
| 1996 | 8°C (47°F) | 4°C (40°F) | 0.12" |
| 1995 | 7°C (45°F) | 2°C (35°F) | 0.43" |
| 1994 | 8°C (46°F) | 7°C (44°F) | 0.17" |
| 1993 | 8°C (47°F) | 4°C (39°F) | 0.1" |
| 1992 | 6°C (42°F) | 3°C (37°F) | 0.27" |
| 1991 | 7°C (45°F) | 4°C (40°F) | 0" |
| 1990 | 10°C (50°F) | 7°C (45°F) | 0.06" |
| 1989 | 8°C (47°F) | 3°C (37°F) | 0" |
| 1988 | 11°C (52°F) | 6°C (42°F) | 0" |
| 1987 | 4°C (40°F) | 2°C (35°F) | 0" |
| 1986 | 1°C (34°F) | -4°C (25°F) | 0" |
| 1985 | 9°C (49°F) | 4°C (39°F) | 0.11" |
| 1984 | 4°C (39°F) | 0°C (32°F) | 0.47" |
| 1983 | 7°C (45°F) | 2°C (36°F) | 0.78" |
| 1982 | 4°C (39°F) | -1°C (31°F) | 0" |
| 1981 | 5°C (41°F) | -1°C (30°F) | 0.01" |
| 1980 | 3°C (38°F) | -2°C (29°F) | 0" |
| 1979 | 9°C (49°F) | 1°C (33°F) | 0.19" |
| 1978 | 6°C (43°F) | -1°C (30°F) | 0.11" |
| 1977 | 7°C (45°F) | 3°C (38°F) | 0.03" |
| 1976 | 11°C (52°F) | 7°C (45°F) | 0.11" |
| 1975 | 11°C (51°F) | 8°C (46°F) | 0.26" |
| 1974 | 5°C (41°F) | 2°C (35°F) | 0.02" |
| 1973 | 5°C (41°F) | -1°C (30°F) | 0" |
| 1972 | 8°C (47°F) | 2°C (36°F) | 0.53" |
| 1971 | 5°C (41°F) | 2°C (36°F) | 0.11" |