Weather in Helsinki

Calculated from weather data of Helsinki Vantaa Airport (EFHK) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	30.0	22.0	32.0	31.0	28.0	39.0
February	30.0	29.0	32.0	33.0	24.0	37.0
March	37.0	38.0	34.0	40.0	36.0	40.0
April	48.0		51.0	46.0	47.0	47.0
May	60.0		61.0	58.0	58.0	56.0
June	71.0		72.0	71.0	76.0	72.0
July	72.0		70.0	73.0	79.0	68.0
August	70.0		70.0	75.0	67.0	69.0
September	60.0		65.0	56.0	55.0	62.0
October	48.0		45.0	51.0	51.0	52.0
November	39.0		35.0	38.0	38.0	44.0
December	32.0		27.0	28.0	25.0	36.0
Average	47.0	30.0	50.0	51.0	49.0	52.0

2nd highest temperature of Finland

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	21.0	9	26	20	19	31
February	20.0	21	21	22	10	28
March	24.0	28	21	22	24	27
April	31.0		31	29	33	31
May	39.0		38	39	41	37
June	50.0		47	51	53	51
July	54.0		52	54	57	52
August	53.0		55	55	53	50
September	45.0		51	40	42	47
October	38.0		35	39	42	41
November	32.0		27	32	30	35
December	24.0		19	18	15	31
Average	34.0	19.0	35.0	36.0	35.0	39.0

22nd lowest temperature of Finland

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
86 °F or warmer	0	0	2	4	0
77 °F or warmer	0	11	23	30	9
68 °F or warmer	0	63	64	72	49
32 °F or colder	69	149	139	126	95

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	41.2	47	36	46	53	30
February	32.9	37	34	39	29	32
March	21.4	19	26	10	29	22
April	12.8		2	16	15	15
May	10.0		7	15	14	10
June	6.8		3	7	3	8
July	8.4		11	8	4	14
August	11.1		21	2	15	12
September	11.9		9	11	9	13
October	23.8		25	20	23	16
November	30.6		42	38	25	22
December	38.3		51	46	26	46
Average	18.5	31.3	17.4	16.1	16.7	16.7

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (miles per hour)

Month	Average	2024	2023	2022	2021	2020
January	10.7	11	11	12	9	13
February	10.7	10	11	11	9	14
March	10.9	8	11	9	12	13
April	10.4		10	10	12	12
May	10.1		10	11	10	10
June	9.9		8	10	9	9
July	9.3		10	10	9	10
August	9.9		9	10	11	8
September	10.1		10	8	10	11
October	10.6		11	11	13	10
November	10.0		8	10	10	11
December	9.9		8	7	10	11
Average	10.1	9.5	9.7	10.0	10.3	10.6

1st highest wind speed of Finland

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	SW	S	W	NE	SW
February	SE	W	S	N	SW
March	SE	SW	W	SW	SW
April		NE	W	SW	W
May		SW	SW	SE	W
June		W	SW	SW	E
July		SW	SW	SW	SW
August		SE	S	S	SW
September		SW	N	N	SW
October		NW	SW	S	S
November		NE	NE	W	S
December		NE	E	NW	SE

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Helsinki weather Q&A

What is the warmest month in Helsinki?

The warmest month is July with an average temperature of 72 °F over the past years.

What is the coldest month in Helsinki?

The coldest month is January with an average daytime temperature of 30 °F in the past few years.

Which month is the wettest in Helsinki?

Chance of precipitation is the highest in January with a probability of around 41.3 %.

Which month is the driest in Helsinki?

The least rainfall and snow can be expected in June. The probability is about 6.8 %.