Weather on September 4 in Helsinki
Historical weather data for September 4 in Helsinki, Finland
Based on 55 years of data from HELSINKI RAUTATIENTORI
About This Date
September 4th in Helsinki, Finland typically brings mild fall weather, with average highs around 17°C and lows near 11°C. Over 55 years of records, the warmest September 4th was in 2024 (20°C average), while the coldest was 1976 (9°C) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 42% of September 4th dates historically, with the wettest September 4th recording 1.78" 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 4th in Helsinki? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 18°C (65°F) | 14°C (58°F) | 0" |
| 2024 | 24°C (76°F) | 16°C (60°F) | 0" |
| 2023 | 20°C (68°F) | 12°C (53°F) | 0" |
| 2022 | 15°C (59°F) | 6°C (42°F) | 0" |
| 2021 | 14°C (58°F) | 6°C (43°F) | 0" |
| 2020 | 19°C (67°F) | 15°C (59°F) | 0.27" |
| 2019 | 20°C (68°F) | 11°C (52°F) | 0" |
| 2018 | 18°C (65°F) | 12°C (54°F) | 0" |
| 2017 | 15°C (59°F) | 9°C (48°F) | 0" |
| 2016 | 18°C (64°F) | 13°C (56°F) | 0" |
| 2015 | 19°C (66°F) | 12°C (53°F) | -- |
| 2014 | 19°C (67°F) | 13°C (56°F) | -- |
| 2013 | 19°C (66°F) | 12°C (53°F) | -- |
| 2012 | 18°C (64°F) | 11°C (52°F) | -- |
| 2011 | 18°C (64°F) | 12°C (53°F) | -- |
| 2010 | 12°C (54°F) | 8°C (46°F) | -- |
| 2009 | 19°C (67°F) | 14°C (57°F) | 0.04" |
| 2008 | 18°C (64°F) | 12°C (54°F) | 0.08" |
| 2007 | 16°C (61°F) | 9°C (49°F) | 0.01" |
| 2006 | 20°C (68°F) | 16°C (60°F) | 0" |
| 2005 | 19°C (66°F) | 11°C (51°F) | 0" |
| 2004 | 18°C (64°F) | 14°C (57°F) | 0" |
| 2003 | 18°C (64°F) | 11°C (52°F) | 0.04" |
| 2002 | 19°C (67°F) | 11°C (52°F) | 0" |
| 2001 | 18°C (65°F) | 14°C (58°F) | 0.87" |
| 2000 | 13°C (56°F) | 11°C (52°F) | 0.3" |
| 1999 | 21°C (69°F) | 17°C (62°F) | 0" |
| 1998 | 14°C (57°F) | 11°C (52°F) | 0" |
| 1997 | 18°C (65°F) | 13°C (55°F) | 0" |
| 1996 | 17°C (62°F) | 10°C (50°F) | 0" |
| 1995 | 18°C (65°F) | 14°C (58°F) | 0" |
| 1994 | 13°C (56°F) | 11°C (52°F) | 1.78" |
| 1993 | 11°C (52°F) | 8°C (46°F) | 0.01" |
| 1992 | 17°C (63°F) | 13°C (56°F) | 0.32" |
| 1991 | 18°C (65°F) | 12°C (54°F) | 0" |
| 1990 | 14°C (57°F) | 9°C (48°F) | 0" |
| 1989 | 15°C (59°F) | 6°C (43°F) | 0" |
| 1988 | 18°C (65°F) | 15°C (59°F) | 0.95" |
| 1987 | 15°C (59°F) | 7°C (44°F) | 0" |
| 1986 | 16°C (60°F) | 6°C (42°F) | 0" |
| 1985 | 17°C (63°F) | 14°C (57°F) | 0.17" |
| 1984 | 15°C (59°F) | 11°C (51°F) | 0.28" |
| 1983 | 21°C (69°F) | 15°C (59°F) | 0.15" |
| 1982 | 13°C (55°F) | 8°C (47°F) | 0.45" |
| 1981 | 14°C (58°F) | 9°C (48°F) | 0" |
| 1980 | 16°C (60°F) | 8°C (47°F) | 1.56" |
| 1979 | 17°C (62°F) | 14°C (57°F) | 0.22" |
| 1978 | 15°C (59°F) | 12°C (53°F) | 0" |
| 1977 | 17°C (63°F) | 14°C (58°F) | 0.04" |
| 1976 | 12°C (54°F) | 6°C (42°F) | 1.05" |
| 1975 | 19°C (66°F) | 16°C (60°F) | 0.95" |
| 1974 | 22°C (71°F) | 14°C (58°F) | 0.71" |
| 1973 | 15°C (59°F) | 8°C (47°F) | 0.03" |
| 1972 | 12°C (54°F) | 8°C (47°F) | 0.01" |
| 1971 | 17°C (62°F) | 10°C (50°F) | 0" |