NaganoJapan · Asia · May

May climate

MountainCultureHiking

May in Nagano

Japan · Asia

Mild days with cool nights and some sun.

One of the best months here

Daytime high

73°F

Lows around 55°F

Rain

Frequent rain

Sun

7 h/day

Air feel

Comfortable

When to visit

Month-by-month fit

Best

Switch month

Temperature

Pleasant by day, brisk at night.

73°Ftypical May high

Typical range

Precipitation

Rain is frequent. About 15 wet days, the lowest monthly average.

48%wet-day frequency

Precip amountWet-day chanceSnowfall

Sunshine

Cloudier spells limit sunshine.

7 hMay sunshine

Heat & humidity by month

ComfortableMay

Easy airWarm airHot airHumid airVery humid air

Hourly temperature pattern

In May, afternoons feel about 68° and nights feel near 55°.

FreezingVery coldColdCoolComfortableWarmHotNight hours

Clear sky

Mostly cloudy skies this month.

32%May Clear sky

Clear skyCloud

Wind pattern

Calm winds are typical in May.

3 mphMay Calm

More detailIncludes daypart comfort

Typical May day

May late afternoons are around 70°F, easing to about 62°F in early evening.

Avg temp Typical range

Morning67°F

Rain27%

Cloud63%

Humid airLow

Sun intensityModerate

Midday72°F

Rain32%

Cloud66%

Humid airLow

Sun intensityStrong

Late afternoon70°F

Rain32%

Cloud66%

Humid airLow

Sun intensityModerate

Early evening62°F

Rain24%

Cloud67%

Humid airLow

Sun intensityMinimal

Best window

Data table

View month-by-month numbers

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	40	27	5.8	23	4.2	76
Feb	42	29	4.8	18	4.9	74
Mar	49	35	5.4	18	5.7	71
Apr	62	44	4.8	15	6.7	69
May	73	55	5.6	15	7.0	70
Jun	79	64	7.0	19	5.8	76
Jul	85	71	9.4	23	5.7	81
Aug	87	72	7.2	20	6.5	79
Sep	80	65	7.3	18	5.2	81
Oct	68	53	6.2	15	5.0	80
Nov	57	42	4.8	17	4.8	79
Dec	45	32	5.6	21	4.3	77

Similar climates

Want a side-by-side climate view? Compare Nagano with Kitzbühel.

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: reviewed station-normal observations.

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

5.8

4.2

Feb

4.8

4.9

Mar

5.4

5.7

Apr

4.8

6.7

May

5.6

7.0

Jun

7.0

5.8

Jul

9.4

5.7

Aug

7.2

6.5

Sep

7.3

5.2

Oct

6.2

5.0

Nov

4.8

Dec

5.6

4.3

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	40	27	5.8	23	4.2	76
Feb	42	29	4.8	18	4.9	74
Mar	49	35	5.4	18	5.7	71
Apr	62	44	4.8	15	6.7	69
May	73	55	5.6	15	7.0	70
Jun	79	64	7.0	19	5.8	76
Jul	85	71	9.4	23	5.7	81
Aug	87	72	7.2	20	6.5	79
Sep	80	65	7.3	18	5.2	81
Oct	68	53	6.2	15	5.0	80
Nov	57	42	4.8	17	4.8	79
Dec	45	32	5.6	21	4.3	77

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	40	27	5.8	23	4.2	76
Feb	42	29	4.8	18	4.9	74
Mar	49	35	5.4	18	5.7	71
Apr	62	44	4.8	15	6.7	69
May	73	55	5.6	15	7.0	70
Jun	79	64	7.0	19	5.8	76
Jul	85	71	9.4	23	5.7	81
Aug	87	72	7.2	20	6.5	79
Sep	80	65	7.3	18	5.2	81
Oct	68	53	6.2	15	5.0	80
Nov	57	42	4.8	17	4.8	79
Dec	45	32	5.6	21	4.3	77

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	40	27	5.8	23	4.2	76
Feb	42	29	4.8	18	4.9	74
Mar	49	35	5.4	18	5.7	71
Apr	62	44	4.8	15	6.7	69
May	73	55	5.6	15	7.0	70
Jun	79	64	7.0	19	5.8	76
Jul	85	71	9.4	23	5.7	81
Aug	87	72	7.2	20	6.5	79
Sep	80	65	7.3	18	5.2	81
Oct	68	53	6.2	15	5.0	80
Nov	57	42	4.8	17	4.8	79
Dec	45	32	5.6	21	4.3	77

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	40	27	5.8	23	4.2	76
Feb	42	29	4.8	18	4.9	74
Mar	49	35	5.4	18	5.7	71
Apr	62	44	4.8	15	6.7	69
May	73	55	5.6	15	7.0	70
Jun	79	64	7.0	19	5.8	76
Jul	85	71	9.4	23	5.7	81
Aug	87	72	7.2	20	6.5	79
Sep	80	65	7.3	18	5.2	81
Oct	68	53	6.2	15	5.0	80
Nov	57	42	4.8	17	4.8	79
Dec	45	32	5.6	21	4.3	77

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	40	27	5.8	23	4.2	76
Feb	42	29	4.8	18	4.9	74
Mar	49	35	5.4	18	5.7	71
Apr	62	44	4.8	15	6.7	69
May	73	55	5.6	15	7.0	70
Jun	79	64	7.0	19	5.8	76
Jul	85	71	9.4	23	5.7	81
Aug	87	72	7.2	20	6.5	79
Sep	80	65	7.3	18	5.2	81
Oct	68	53	6.2	15	5.0	80
Nov	57	42	4.8	17	4.8	79
Dec	45	32	5.6	21	4.3	77

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	40	27	5.8	23	4.2	76
Feb	42	29	4.8	18	4.9	74
Mar	49	35	5.4	18	5.7	71
Apr	62	44	4.8	15	6.7	69
May	73	55	5.6	15	7.0	70
Jun	79	64	7.0	19	5.8	76
Jul	85	71	9.4	23	5.7	81
Aug	87	72	7.2	20	6.5	79
Sep	80	65	7.3	18	5.2	81
Oct	68	53	6.2	15	5.0	80
Nov	57	42	4.8	17	4.8	79
Dec	45	32	5.6	21	4.3	77