Helsinki September Weather Averages Southern Finland, Finland

September Weather Averages for Helsinki

High Temp	15°C	60°F
Low Temp	11°C	51°F
Avg Temp	13°C	55°F
Sunshine Hours	147 hours
Rainfall	69.77 mm	2.75 In
Rain days	8 days
Pressure	1014 mb	30 In

Helsinki September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	13°C / 56°F	8°C / 47°F	11°C / 51°F	138 hours	46.97 mm / 1.85 In	5 days	1020 mb / 31 In
2009	16°C / 62°F	11°C / 52°F	14°C / 57°F	177 hours	26.90 mm / 1.06 In	2 days	1013 mb / 30 In
2010	14°C / 58°F	10°C / 50°F	12°C / 54°F	145 hours	68.06 mm / 2.68 In	9 days	1014 mb / 30 In
2011	16°C / 61°F	12°C / 54°F	14°C / 57°F	104 hours	96.94 mm / 3.82 In	14 days	1008 mb / 30 In
2012	14°C / 58°F	11°C / 51°F	13°C / 55°F	88 hours	145.48 mm / 5.73 In	14 days	1008 mb / 30 In
2013	15°C / 59°F	11°C / 52°F	13°C / 55°F	145 hours	42.90 mm / 1.69 In	7 days	1013 mb / 30 In
2014	16°C / 61°F	11°C / 52°F	14°C / 57°F	253 hours	40.30 mm / 1.59 In	3 days	1018 mb / 31 In
2015	15°C / 59°F	12°C / 53°F	13°C / 56°F	127 hours	64.50 mm / 2.54 In	9 days	1019 mb / 31 In
2016	16°C / 60°F	11°C / 52°F	13°C / 56°F	188 hours	36.88 mm / 1.45 In	3 days	1016 mb / 30 In
2017	14°C / 57°F	10°C / 51°F	12°C / 54°F	163 hours	82.57 mm / 3.25 In	7 days	1018 mb / 31 In
2018	17°C / 62°F	12°C / 54°F	14°C / 58°F	145 hours	117.53 mm / 4.63 In	12 days	1012 mb / 30 In
2019	14°C / 57°F	10°C / 50°F	12°C / 54°F	119 hours	81.92 mm / 3.23 In	16 days	1011 mb / 30 In
2020	16°C / 60°F	11°C / 52°F	13°C / 56°F	109 hours	55.90 mm / 2.20 In	9 days	1012 mb / 30 In
2021	13°C / 56°F	8°C / 46°F	10°C / 50°F	131 hours	27.00 mm / 1.06 In	3 days	1018 mb / 31 In
2022	13°C / 56°F	8°C / 46°F	10°C / 51°F	110 hours	44.80 mm / 1.76 In	6 days	1013 mb / 30 In
2023	18°C / 64°F	12°C / 54°F	15°C / 59°F	151 hours	75.29 mm / 2.96 In	7 days	1016 mb / 30 In
2024	18°C / 64°F	12°C / 54°F	15°C / 59°F	191 hours	109.42 mm / 4.31 In	3 days	1018 mb / 31 In

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