Weather on August 25 in Helsinki
Historical weather data for August 25 in Helsinki, Finland
Based on 55 years of data from HELSINKI RAUTATIENTORI
About This Date
August 25th in Helsinki, Finland typically brings mild summer weather, with average highs around 18°C and lows near 12°C. Over 55 years of records, the warmest August 25th was in 2015 (21°C average), while the coldest was 1973 (11°C) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 44% of August 25th dates historically, with the wettest August 25th recording 2.84" 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 25th 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 (66°F) | 9°C (49°F) | 0" |
| 2024 | 26°C (78°F) | 15°C (59°F) | 0" |
| 2023 | 21°C (70°F) | 13°C (56°F) | 0" |
| 2022 | 20°C (68°F) | 16°C (61°F) | 0" |
| 2021 | 13°C (56°F) | 11°C (52°F) | 2.84" |
| 2020 | 19°C (66°F) | 11°C (52°F) | 0.28" |
| 2019 | 20°C (68°F) | 11°C (51°F) | 0" |
| 2018 | 19°C (67°F) | 16°C (61°F) | 0" |
| 2017 | 14°C (57°F) | 9°C (48°F) | 0.33" |
| 2016 | 19°C (67°F) | 12°C (54°F) | 0.55" |
| 2015 | 24°C (75°F) | 18°C (65°F) | -- |
| 2014 | 16°C (61°F) | 13°C (55°F) | -- |
| 2013 | 21°C (69°F) | 11°C (52°F) | -- |
| 2012 | 19°C (67°F) | 12°C (54°F) | -- |
| 2011 | 22°C (71°F) | 14°C (58°F) | -- |
| 2010 | 19°C (67°F) | 13°C (55°F) | -- |
| 2009 | 19°C (67°F) | 9°C (49°F) | 0" |
| 2008 | 19°C (67°F) | 14°C (57°F) | 0" |
| 2007 | 21°C (70°F) | 14°C (58°F) | 0" |
| 2006 | 24°C (76°F) | 16°C (60°F) | 0" |
| 2005 | 23°C (74°F) | 17°C (62°F) | 0.02" |
| 2004 | 17°C (63°F) | 6°C (43°F) | 0.74" |
| 2003 | 17°C (63°F) | 14°C (57°F) | 0" |
| 2002 | 25°C (77°F) | 13°C (56°F) | 0" |
| 2001 | 21°C (69°F) | 11°C (51°F) | 0" |
| 2000 | 19°C (67°F) | 10°C (50°F) | 0" |
| 1999 | 18°C (65°F) | 8°C (47°F) | 0" |
| 1998 | 17°C (63°F) | 9°C (48°F) | 0" |
| 1997 | 22°C (71°F) | 18°C (64°F) | 0.04" |
| 1996 | 20°C (68°F) | 16°C (61°F) | 0" |
| 1995 | 19°C (66°F) | 15°C (59°F) | 0.09" |
| 1994 | 19°C (67°F) | 11°C (51°F) | 0" |
| 1993 | 16°C (60°F) | 11°C (51°F) | 0" |
| 1992 | 16°C (61°F) | 11°C (51°F) | 0.14" |
| 1991 | 20°C (68°F) | 17°C (62°F) | 0" |
| 1990 | 18°C (64°F) | 8°C (47°F) | 0.79" |
| 1989 | 14°C (58°F) | 8°C (47°F) | 0.45" |
| 1988 | 18°C (65°F) | 9°C (49°F) | 0.14" |
| 1987 | 13°C (56°F) | 7°C (45°F) | 0" |
| 1986 | 13°C (55°F) | 9°C (48°F) | 0.58" |
| 1985 | 18°C (64°F) | 14°C (58°F) | 0.31" |
| 1984 | 15°C (59°F) | 6°C (42°F) | 0" |
| 1983 | 16°C (61°F) | 5°C (41°F) | 0" |
| 1982 | 16°C (60°F) | 13°C (55°F) | 0.17" |
| 1981 | 12°C (54°F) | 9°C (49°F) | 0.03" |
| 1980 | 16°C (60°F) | 12°C (53°F) | 0.46" |
| 1979 | 18°C (64°F) | 11°C (51°F) | 0.04" |
| 1978 | 16°C (60°F) | 12°C (54°F) | 0.09" |
| 1977 | 16°C (60°F) | 7°C (44°F) | 0.66" |
| 1976 | 21°C (70°F) | 11°C (51°F) | 0" |
| 1975 | 21°C (69°F) | 12°C (53°F) | 0" |
| 1974 | 19°C (67°F) | 13°C (56°F) | 0.04" |
| 1973 | 16°C (60°F) | 6°C (42°F) | 0.01" |
| 1972 | 16°C (60°F) | 13°C (55°F) | 0.13" |
| 1971 | 18°C (65°F) | 13°C (56°F) | 0.01" |