Weather on September 21 in Edinburgh
Historical weather data for September 21 in Edinburgh, United Kingdom
Based on 55 years of data from EDINBURGH: ROYAL BOTANIC GARDE
About This Date
September 21st in Edinburgh, United Kingdom typically brings mild fall weather, with average highs around 16°C and lows near 9°C. Over 55 years of records, the warmest September 21st was in 2013 (17°C average), while the coldest was 1992 (8°C) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 55% of September 21st dates historically, with the wettest September 21st recording 3.22" 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 September 21st in Edinburgh? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 16°C (60°F) | 4°C (40°F) | 0" |
| 2024 | 13°C (56°F) | 12°C (53°F) | 0" |
| 2023 | 16°C (60°F) | 9°C (49°F) | 0" |
| 2022 | 17°C (63°F) | 8°C (46°F) | 0.36" |
| 2021 | 19°C (67°F) | 11°C (51°F) | 0" |
| 2020 | 18°C (65°F) | 8°C (46°F) | 0" |
| 2019 | 14°C (58°F) | 9°C (49°F) | 0" |
| 2018 | 14°C (58°F) | 7°C (44°F) | 0.06" |
| 2017 | 16°C (60°F) | 11°C (52°F) | 0.02" |
| 2016 | 17°C (62°F) | 6°C (42°F) | 0.26" |
| 2015 | 16°C (61°F) | 12°C (54°F) | 0.04" |
| 2014 | 19°C (66°F) | 6°C (43°F) | 0.02" |
| 2013 | 22°C (71°F) | 12°C (53°F) | 0" |
| 2012 | 13°C (55°F) | 7°C (44°F) | 0.02" |
| 2011 | 16°C (60°F) | 11°C (51°F) | 0.6" |
| 2010 | 18°C (65°F) | 9°C (48°F) | 0" |
| 2009 | 17°C (62°F) | 12°C (54°F) | 0.01" |
| 2008 | 19°C (67°F) | 8°C (47°F) | 0.35" |
| 2007 | 17°C (62°F) | 9°C (49°F) | 0.05" |
| 2006 | -- | 17°C (63°F) | 0.01" |
| 2005 | 18°C (65°F) | 11°C (52°F) | 0" |
| 2004 | 15°C (59°F) | 11°C (51°F) | 0.02" |
| 2003 | 14°C (58°F) | 9°C (48°F) | 3.02" |
| 2002 | 16°C (60°F) | 8°C (47°F) | 0" |
| 2001 | 14°C (58°F) | 11°C (51°F) | 0" |
| 2000 | 17°C (63°F) | 6°C (43°F) | 0.09" |
| 1999 | 15°C (59°F) | 13°C (55°F) | 0.01" |
| 1998 | 14°C (57°F) | 9°C (48°F) | 0" |
| 1997 | 17°C (63°F) | 8°C (46°F) | 0" |
| 1996 | 16°C (60°F) | 12°C (53°F) | 0.04" |
| 1995 | 16°C (61°F) | 11°C (52°F) | 0" |
| 1994 | 18°C (64°F) | 10°C (50°F) | 0" |
| 1993 | 17°C (62°F) | 8°C (47°F) | 0" |
| 1992 | 12°C (54°F) | 3°C (38°F) | 1.69" |
| 1991 | 13°C (56°F) | 12°C (53°F) | 1.23" |
| 1990 | 13°C (56°F) | 4°C (39°F) | 0" |
| 1989 | 14°C (58°F) | 13°C (56°F) | 0.03" |
| 1988 | 13°C (56°F) | 11°C (52°F) | 0.03" |
| 1987 | 17°C (63°F) | 11°C (51°F) | 0.52" |
| 1986 | 16°C (61°F) | 12°C (53°F) | 0" |
| 1985 | 14°C (57°F) | 9°C (48°F) | 3.22" |
| 1984 | 12°C (53°F) | 4°C (40°F) | 0.07" |
| 1983 | 14°C (58°F) | 5°C (41°F) | 0" |
| 1982 | 13°C (56°F) | 6°C (43°F) | 0" |
| 1981 | 15°C (59°F) | 10°C (50°F) | 0" |
| 1980 | 20°C (68°F) | 12°C (53°F) | 0.05" |
| 1979 | 13°C (55°F) | 6°C (43°F) | 0" |
| 1978 | 17°C (63°F) | 13°C (55°F) | 0.13" |
| 1977 | 13°C (55°F) | 9°C (48°F) | 0" |
| 1976 | 16°C (61°F) | 14°C (58°F) | 0.8" |
| 1975 | 17°C (63°F) | 12°C (53°F) | 0.01" |
| 1974 | 13°C (56°F) | 8°C (47°F) | 0.01" |
| 1973 | 13°C (56°F) | 6°C (42°F) | 0" |
| 1972 | 17°C (63°F) | 11°C (52°F) | 0.24" |
| 1971 | 17°C (62°F) | 11°C (51°F) | 0" |