Weather on September 17 in Helsinki

Historical weather data for September 17 in Helsinki, Finland

Avg High14°C (57°F)
Avg Low8°C (47°F)
Warmest200116°C
Coldest19936°C

Based on 55 years of data from HELSINKI RAUTATIENTORI

About This Date

September 17th in Helsinki, Finland typically brings cool fall weather, with average highs around 14°C and lows near 8°C. Over 55 years of records, the warmest September 17th was in 2001 (16°C average), while the coldest was 1993 (6°C) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 42% of September 17th dates historically, with the wettest September 17th recording 0.88" of rain. The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.

The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.

Planning for September 17th in Helsinki? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecip
202518°C (64°F)13°C (55°F)0.16"
202419°C (66°F)13°C (56°F)0"
202317°C (62°F)12°C (54°F)0.34"
202216°C (60°F)8°C (47°F)0.02"
202111°C (52°F)7°C (44°F)0.07"
202014°C (57°F)8°C (46°F)0"
201912°C (53°F)6°C (42°F)0.01"
201816°C (60°F)9°C (48°F)0.64"
201714°C (58°F)6°C (43°F)0"
201614°C (57°F)9°C (49°F)0"
201517°C (63°F)14°C (58°F)--
201417°C (62°F)10°C (50°F)--
201317°C (62°F)15°C (59°F)--
201217°C (62°F)13°C (56°F)--
201117°C (62°F)10°C (50°F)0"
201016°C (61°F)11°C (52°F)--
200915°C (59°F)8°C (47°F)0.01"
20088°C (47°F)5°C (41°F)0.44"
200715°C (59°F)7°C (45°F)0.05"
200616°C (60°F)6°C (42°F)0"
200511°C (51°F)4°C (39°F)0"
200414°C (57°F)6°C (42°F)0.01"
200316°C (61°F)7°C (44°F)0"
200216°C (61°F)9°C (48°F)0.1"
200119°C (66°F)13°C (55°F)0"
200013°C (56°F)3°C (38°F)0"
199914°C (57°F)9°C (49°F)0"
199816°C (60°F)12°C (54°F)0.02"
199714°C (58°F)12°C (53°F)0.3"
199614°C (57°F)5°C (41°F)0"
199514°C (57°F)3°C (37°F)0"
199416°C (61°F)13°C (55°F)0.38"
19939°C (48°F)3°C (38°F)0.1"
199214°C (57°F)12°C (53°F)0.88"
199114°C (57°F)4°C (40°F)0"
199013°C (55°F)3°C (38°F)0"
198915°C (59°F)11°C (52°F)0.45"
198813°C (55°F)4°C (40°F)0.19"
198712°C (54°F)5°C (41°F)0"
198612°C (53°F)6°C (42°F)0"
198514°C (58°F)10°C (50°F)0"
198413°C (56°F)9°C (48°F)0"
198318°C (64°F)13°C (56°F)0.34"
198214°C (57°F)7°C (45°F)0"
198111°C (52°F)3°C (38°F)0"
198014°C (57°F)6°C (42°F)0"
197911°C (51°F)3°C (37°F)0.78"
197813°C (55°F)8°C (47°F)0.78"
19778°C (46°F)6°C (43°F)0"
197611°C (51°F)7°C (44°F)0"
197517°C (62°F)13°C (55°F)0"
197415°C (59°F)12°C (53°F)0"
197311°C (52°F)5°C (41°F)0.01"
197215°C (59°F)11°C (51°F)0"
197113°C (56°F)1°C (34°F)0.01"

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