Weather on December 21 in Istanbul
Historical weather data for December 21 in Istanbul, Turkey
Avg High11°C (51°F)
Avg Low5°C (41°F)
Warmest198314°C
Coldest2005-3°C
Based on 55 years of data from ISTANBUL
About This Date
December 21st in Istanbul, Turkey typically brings cool winter weather, with average highs around 11°C and lows near 5°C. Over 55 years of records, the warmest December 21st was in 1983 (14°C average), while the coldest was 2005 (-3°C) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 47% of December 21st dates historically, with the wettest December 21st recording 2.21" of rain.
Planning for December 21st in Istanbul? 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 | 10°C (50°F) | 4°C (40°F) | 0.01" |
| 2024 | 16°C (60°F) | -- | 1.14" |
| 2023 | -- | 8°C (47°F) | -- |
| 2022 | 12°C (54°F) | -- | 0" |
| 2021 | 7°C (45°F) | -- | 0" |
| 2020 | 10°C (50°F) | -- | 0" |
| 2019 | -- | 11°C (51°F) | -- |
| 2018 | -- | 4°C (40°F) | 0" |
| 2017 | -- | 4°C (39°F) | 0.05" |
| 2016 | 7°C (45°F) | 3°C (37°F) | 0.86" |
| 2015 | 13°C (55°F) | 4°C (39°F) | 0" |
| 2014 | 16°C (60°F) | 3°C (38°F) | 1.4" |
| 2013 | -- | -1°C (30°F) | 0" |
| 2012 | -- | -1°C (31°F) | 0" |
| 2011 | 14°C (58°F) | -- | 0.25" |
| 2010 | 18°C (65°F) | -- | 0.05" |
| 2009 | 7°C (44°F) | -- | 2.21" |
| 2008 | 8°C (47°F) | -- | 1.3" |
| 2007 | 8°C (46°F) | 2°C (35°F) | 0" |
| 2006 | 8°C (46°F) | -- | 1.96" |
| 2005 | 2°C (35°F) | -7°C (19°F) | 0" |
| 2004 | 12°C (54°F) | 8°C (47°F) | 0" |
| 2003 | 12°C (53°F) | 6°C (42°F) | -- |
| 2002 | 3°C (38°F) | -2°C (29°F) | 0.3" |
| 2001 | 7°C (44°F) | 4°C (39°F) | -- |
| 2000 | 4°C (40°F) | 2°C (36°F) | 1.2" |
| 1999 | 15°C (59°F) | 6°C (43°F) | 0.4" |
| 1998 | 13°C (56°F) | 8°C (46°F) | 0.1" |
| 1997 | 13°C (56°F) | 9°C (48°F) | -- |
| 1996 | 16°C (60°F) | 12°C (54°F) | -- |
| 1995 | 10°C (50°F) | 5°C (41°F) | 1.2" |
| 1994 | 7°C (44°F) | -1°C (31°F) | -- |
| 1993 | 14°C (58°F) | 9°C (48°F) | -- |
| 1992 | 8°C (47°F) | 4°C (39°F) | -- |
| 1991 | 16°C (60°F) | 6°C (43°F) | 0.1" |
| 1990 | 8°C (47°F) | 6°C (43°F) | 0.4" |
| 1989 | 14°C (57°F) | 6°C (43°F) | 0" |
| 1988 | 9°C (49°F) | 5°C (41°F) | -- |
| 1987 | 9°C (49°F) | 7°C (44°F) | 0.6" |
| 1986 | 9°C (48°F) | 4°C (39°F) | 0.8" |
| 1985 | 6°C (42°F) | 1°C (33°F) | 1.7" |
| 1984 | 9°C (48°F) | 6°C (42°F) | -- |
| 1983 | 17°C (63°F) | 10°C (50°F) | 0" |
| 1982 | 14°C (58°F) | 8°C (47°F) | 1.2" |
| 1981 | 12°C (53°F) | 3°C (38°F) | 2" |
| 1980 | 14°C (57°F) | 9°C (48°F) | -- |
| 1979 | 16°C (61°F) | 7°C (44°F) | -- |
| 1978 | 12°C (54°F) | 8°C (47°F) | 0.7" |
| 1977 | 7°C (44°F) | 4°C (39°F) | -- |
| 1976 | 9°C (49°F) | 7°C (44°F) | -- |
| 1975 | 2°C (36°F) | -1°C (31°F) | 1" |
| 1974 | 8°C (46°F) | 0°C (32°F) | 0.3" |
| 1973 | 15°C (59°F) | 9°C (49°F) | -- |
| 1972 | 6°C (42°F) | 3°C (37°F) | 0.4" |
| 1971 | 11°C (51°F) | 6°C (43°F) | -- |