Weather on August 12 in Helsinki
Historical weather data for August 12 in Helsinki, Finland
Based on 55 years of data from HELSINKI RAUTATIENTORI
About This Date
August 12th in Helsinki, Finland typically brings mild summer weather, with average highs around 20°C and lows near 14°C. Over 55 years of records, the warmest August 12th was in 2007 (22°C average), while the coldest was 2016 (13°C) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 49% of August 12th dates historically, with the wettest August 12th recording 2.25" 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 August 12th in Helsinki? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 19°C (67°F) | 13°C (55°F) | 0.15" |
| 2024 | 18°C (65°F) | 13°C (56°F) | 0.23" |
| 2023 | 20°C (68°F) | 12°C (53°F) | 0" |
| 2022 | 23°C (73°F) | 17°C (62°F) | 0" |
| 2021 | 23°C (73°F) | 16°C (61°F) | 0" |
| 2020 | 18°C (64°F) | 10°C (50°F) | 0.38" |
| 2019 | 21°C (70°F) | 17°C (63°F) | 0.01" |
| 2018 | 19°C (67°F) | 14°C (58°F) | 0.24" |
| 2017 | 23°C (74°F) | 16°C (61°F) | 0.78" |
| 2016 | 17°C (63°F) | 9°C (48°F) | 0" |
| 2015 | 23°C (74°F) | 18°C (64°F) | -- |
| 2014 | 24°C (76°F) | 19°C (66°F) | -- |
| 2013 | 19°C (67°F) | 15°C (59°F) | -- |
| 2012 | 17°C (63°F) | 11°C (51°F) | -- |
| 2011 | 19°C (67°F) | 13°C (56°F) | -- |
| 2010 | 25°C (77°F) | 17°C (63°F) | -- |
| 2009 | 21°C (69°F) | 16°C (60°F) | 0.59" |
| 2008 | 21°C (70°F) | 16°C (61°F) | 1.5" |
| 2007 | 25°C (77°F) | 19°C (66°F) | 0.01" |
| 2006 | 24°C (76°F) | 14°C (58°F) | 0" |
| 2005 | 21°C (69°F) | 14°C (58°F) | 2.25" |
| 2004 | 21°C (69°F) | 11°C (52°F) | 0.01" |
| 2003 | 19°C (67°F) | 11°C (52°F) | 0" |
| 2002 | 27°C (80°F) | 16°C (60°F) | 0" |
| 2001 | 19°C (66°F) | 14°C (57°F) | 0.41" |
| 2000 | 21°C (69°F) | 14°C (58°F) | 1.43" |
| 1999 | 18°C (64°F) | 14°C (57°F) | 0" |
| 1998 | 19°C (66°F) | 11°C (52°F) | 0.14" |
| 1997 | 22°C (72°F) | 12°C (54°F) | 1.77" |
| 1996 | 24°C (76°F) | 12°C (53°F) | 0" |
| 1995 | 23°C (73°F) | 11°C (51°F) | 0" |
| 1994 | 21°C (69°F) | 14°C (58°F) | 0" |
| 1993 | 18°C (65°F) | 12°C (54°F) | 0" |
| 1992 | 18°C (65°F) | 16°C (60°F) | 0" |
| 1991 | 18°C (64°F) | 12°C (53°F) | 1.37" |
| 1990 | 19°C (67°F) | 13°C (56°F) | 0" |
| 1989 | 19°C (66°F) | 17°C (62°F) | 0.01" |
| 1988 | 18°C (64°F) | 13°C (56°F) | 0" |
| 1987 | 18°C (65°F) | 13°C (55°F) | 0" |
| 1986 | 18°C (64°F) | 14°C (57°F) | 0.46" |
| 1985 | 19°C (67°F) | 14°C (58°F) | 0" |
| 1984 | 17°C (62°F) | 11°C (51°F) | 0" |
| 1983 | 19°C (67°F) | 14°C (58°F) | 2.13" |
| 1982 | 21°C (70°F) | 11°C (52°F) | 0" |
| 1981 | 17°C (62°F) | 13°C (55°F) | 0.01" |
| 1980 | 24°C (75°F) | 15°C (59°F) | 0.32" |
| 1979 | 19°C (67°F) | 16°C (61°F) | 0.03" |
| 1978 | 17°C (62°F) | 12°C (54°F) | 0.71" |
| 1977 | 21°C (70°F) | 16°C (60°F) | 0.01" |
| 1976 | 21°C (69°F) | 12°C (53°F) | 0" |
| 1975 | 18°C (64°F) | 12°C (53°F) | 0" |
| 1974 | 19°C (67°F) | 10°C (50°F) | 0.21" |
| 1973 | 22°C (71°F) | 13°C (56°F) | 0" |
| 1972 | 18°C (64°F) | 12°C (53°F) | 2" |
| 1971 | 18°C (65°F) | 14°C (57°F) | 0.17" |