HelsinkiFinland · Europe · May

May climate

CityCulture

May in Helsinki

Finland · Europe

Cool days and plenty of sun.

One of the best months here

Daytime high

58°F

Lows around 42°F

Rain

Several rainy days

Sun

9 h/day

Air feel

Very dry

When to visit

Month-by-month fit

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Temperature

Cool by day, cold at night.

58°Ftypical May high

Typical range

Precipitation

Several rainy days. About 9 wet days, fewer than in most months.

29%wet-day frequency

Precip amountWet-day chanceSnowfall

Sunshine

A mix of sunshine and cloud.

8.9 hMay sunshine

Heat & humidity by month

Very dryMay Heat feel

Easy airWarm airHumid air

Hourly temperature pattern

In May, afternoons feel about 50° and nights feel near 37°.

FrigidFreezingVery coldColdCoolComfortableNight hours

Clear sky

Partly cloudy skies this month.

44%May Clear sky

Clear skyCloud

Wind pattern

Calm winds are typical in May.

8 mphMay Light breeze

More detailIncludes daypart comfort

Typical May day

May late afternoons are around 57°F, easing to about 55°F in early evening.

Avg temp Typical range

Morning51°F

Rain13%

Cloud58%

Humid airLow

Sun intensityModerate

Midday56°F

Rain17%

Cloud61%

Humid airLow

Sun intensityStrong

Late afternoon57°F

Rain17%

Cloud60%

Humid airLow

Sun intensityModerate

Early evening55°F

Rain13%

Cloud55%

Humid airLow

Sun intensityLow

Best window

Data table

View month-by-month numbers

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	28	20	2.0	12	1.3	90
Feb	28	19	1.7	10	2.6	88
Mar	35	23	1.4	8	4.2	81
Apr	47	33	1.5	8	6.0	73
May	58	42	1.8	9	8.9	68
Jun	66	51	2.9	11	9.9	70
Jul	71	57	3.3	13	8.9	75
Aug	69	55	3.1	13	7.2	79
Sep	60	47	2.3	10	4.5	84
Oct	48	39	2.4	12	2.9	87
Nov	39	33	2.3	12	1.2	91
Dec	33	26	2.3	12	0.9	90

Similar climates

Want a side-by-side climate view? Compare Helsinki with Warsaw.

Climate data notePlanning guidance, not a forecast

Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.

Sunshine: source type is not yet identified at metric level.

Local microclimates can vary by beach, neighborhood, trail, or elevation.

Last updated: Jun 1, 2026

Data & methodology

Month

High°F

Low°F

Rainin

Wet days

Sunh

Humidity%

Jan

2.0

1.3

Feb

1.7

2.6

Mar

1.4

4.2

Apr

1.5

6.0

May

1.8

8.9

Jun

2.9

9.9

Jul

3.3

8.9

Aug

3.1

7.2

Sep

2.3

4.5

Oct

2.4

2.9

Nov

2.3

1.2

Dec

2.3

0.9

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	28	20	2.0	12	1.3	90
Feb	28	19	1.7	10	2.6	88
Mar	35	23	1.4	8	4.2	81
Apr	47	33	1.5	8	6.0	73
May	58	42	1.8	9	8.9	68
Jun	66	51	2.9	11	9.9	70
Jul	71	57	3.3	13	8.9	75
Aug	69	55	3.1	13	7.2	79
Sep	60	47	2.3	10	4.5	84
Oct	48	39	2.4	12	2.9	87
Nov	39	33	2.3	12	1.2	91
Dec	33	26	2.3	12	0.9	90

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	28	20	2.0	12	1.3	90
Feb	28	19	1.7	10	2.6	88
Mar	35	23	1.4	8	4.2	81
Apr	47	33	1.5	8	6.0	73
May	58	42	1.8	9	8.9	68
Jun	66	51	2.9	11	9.9	70
Jul	71	57	3.3	13	8.9	75
Aug	69	55	3.1	13	7.2	79
Sep	60	47	2.3	10	4.5	84
Oct	48	39	2.4	12	2.9	87
Nov	39	33	2.3	12	1.2	91
Dec	33	26	2.3	12	0.9	90

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	28	20	2.0	12	1.3	90
Feb	28	19	1.7	10	2.6	88
Mar	35	23	1.4	8	4.2	81
Apr	47	33	1.5	8	6.0	73
May	58	42	1.8	9	8.9	68
Jun	66	51	2.9	11	9.9	70
Jul	71	57	3.3	13	8.9	75
Aug	69	55	3.1	13	7.2	79
Sep	60	47	2.3	10	4.5	84
Oct	48	39	2.4	12	2.9	87
Nov	39	33	2.3	12	1.2	91
Dec	33	26	2.3	12	0.9	90

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	28	20	2.0	12	1.3	90
Feb	28	19	1.7	10	2.6	88
Mar	35	23	1.4	8	4.2	81
Apr	47	33	1.5	8	6.0	73
May	58	42	1.8	9	8.9	68
Jun	66	51	2.9	11	9.9	70
Jul	71	57	3.3	13	8.9	75
Aug	69	55	3.1	13	7.2	79
Sep	60	47	2.3	10	4.5	84
Oct	48	39	2.4	12	2.9	87
Nov	39	33	2.3	12	1.2	91
Dec	33	26	2.3	12	0.9	90

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	28	20	2.0	12	1.3	90
Feb	28	19	1.7	10	2.6	88
Mar	35	23	1.4	8	4.2	81
Apr	47	33	1.5	8	6.0	73
May	58	42	1.8	9	8.9	68
Jun	66	51	2.9	11	9.9	70
Jul	71	57	3.3	13	8.9	75
Aug	69	55	3.1	13	7.2	79
Sep	60	47	2.3	10	4.5	84
Oct	48	39	2.4	12	2.9	87
Nov	39	33	2.3	12	1.2	91
Dec	33	26	2.3	12	0.9	90

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	28	20	2.0	12	1.3	90
Feb	28	19	1.7	10	2.6	88
Mar	35	23	1.4	8	4.2	81
Apr	47	33	1.5	8	6.0	73
May	58	42	1.8	9	8.9	68
Jun	66	51	2.9	11	9.9	70
Jul	71	57	3.3	13	8.9	75
Aug	69	55	3.1	13	7.2	79
Sep	60	47	2.3	10	4.5	84
Oct	48	39	2.4	12	2.9	87
Nov	39	33	2.3	12	1.2	91
Dec	33	26	2.3	12	0.9	90