Suwa (Nagano): temperature and climate normals

Latest16.1 °COct 9, 2026 20:10 JST

24 h max / min22.2 °C / 11.2 °C

Annual mean (normal)11.4 °Crank 580 of 903

Annual precipitation (normal)1,301.5mmrank 641

Altitude760 m

Last 24 hours

Mean maxMeanMean min

Month	Mean	Max	Min	≥30°C	Min<0°C	Precip.	Sun	Snow
Jan	-1.1 °C	3.8 °C	-5.5 °C	0.0days	29.2days	43.3mm	184.4h	13 cm
Feb	-0.2 °C	5.1 °C	-5.0 °C	0.0days	25.7days	50.6mm	179.6h	15 cm
Mar	4.0 °C	9.8 °C	-1.0 °C	0.0days	19.2days	89.0mm	199.1h	6 cm
Apr	10.0 °C	16.1 °C	4.4 °C	0.0days	4.0days	92.8mm	204.4h	1 cm
May	15.5 °C	21.5 °C	10.2 °C	0.2days	0.0days	111.7mm	212.2h	0 cm
Jun	19.3 °C	24.5 °C	15.2 °C	0.8days	0.0days	155.1mm	161.4h	0 cm
Jul	23.2 °C	28.2 °C	19.6 °C	10.7days	0.0days	194.0mm	169.5h	0 cm
Aug	24.1 °C	29.5 °C	20.3 °C	15.4days	0.0days	140.8mm	199.4h	0 cm
Sep	19.8 °C	24.7 °C	16.2 °C	2.1days	0.0days	176.9mm	152.9h	0 cm
Oct	13.4 °C	18.5 °C	9.4 °C	0.0days	0.2days	136.8mm	162.8h	0 cm
Nov	7.3 °C	12.7 °C	2.7 °C	0.0days	7.3days	69.0mm	166.9h	0 cm
Dec	1.9 °C	6.8 °C	-2.4 °C	0.0days	23.9days	41.6mm	171.8h	6 cm
Year	11.4 °C	16.8 °C	7.0 °C	29.3days	109.6days	1,301.5mm	2,164.8h	21 cm

For reference: latest 16.1 °C; the Oct mean normal is 13.4 °C (one observation vs a monthly mean).

Normals: JMA 2020 normals (1991–2020 averages). Latest values are observations fetched once a day, not real time.