Niigata monthly weather averages

Contents

Average daytime temperature
Average rainfall
Average daily sunshine
Day / night temperatures
Sea temperature
Wind speed
Relative humidity
Quick weather stats
Location map

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Niigata

Niigata average temperature chart (Celsius)

Niigata average temperature chart (Fahrenheit)

Average monthly temperatures in Niigata (degrees centigrade and fahrenheit)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
°C	5	5.3	8.8	15.7	20.8	24.2	28.4	30.6	25.8	19.8	13.9	8.2
°F	40.9	41.5	47.8	60.2	69.5	75.6	83.1	87.1	78.5	67.6	57	46.8

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Average monthly rainfall in Niigata (mm and inches)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
mm	188	128	102	92	97	117	181	135	158	155	194	216
inches	7.4	5	4	3.6	3.8	4.6	7.1	5.3	6.2	6.1	7.6	8.5
Rainy days	29	26	25	17	17	17	18	16	19	20	23	28

Average annual rainfall in Niigata: 1940.3mm (763.9 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Niigata

Average daily sunshine Niigata
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hrs sunshine	2.2	3.2	4.9	6.4	7.1	5.8	5.8	7.1	5	4.9	3.4	2.3

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Niigata average minimum / maximum temperatures (Celsius)

Niigata average minimum / maximum temperatures (Fahrenheit)

Maximum and minimum daily temperatures in Niigata (degrees centigrade and fahrenheit)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Min °C	-0.5	-0.6	1.5	6.7	12	17	21.3	22.8	18.4	11.8	6.4	2
Max °C	5.1	5.4	9	15.9	21.1	24.4	28.6	30.8	26	20	14.1	8.4
Min °F	31.1	30.9	34.6	44.1	53.5	62.6	70.3	73	65.1	53.2	43.4	35.6
Max °F	36.1	36.3	41.4	52.3	61.7	69.3	76.8	80.2	72	60.6	50.4	41.4

Sea temperature

The graph below shows the average sea temperature.

Niigata average sea temperature chart (Fahrenheit)

Average sea temperature around Niigata in degrees centigrade and fahrenheit
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
°C	11.9	10.2	10.1	11.5	14.5	18.5	22.1	25.2	24	20.9	17.8	14.7
°F	53.4	50.3	50.2	52.8	58.1	65.3	71.8	77.3	75.2	69.6	64	58.5

Wind speed

The graph below shows the average wind speed.

Niigata average winspeed by month (km/h)

Average wind speed in Niigata (mph and kmh)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
km/h	16	14	13	12	10	9	9	9	9	10	12	14
mph	10	9	8	7	7	6	6	6	6	7	7	9

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Average relative humidity in Niigata
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
75%	73%	69%	68%	70%	76%	79%	76%	76%	74%	73%	75%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Niigata weather stats

Niigata weather statistics
Hottest month:	August	30.6°C 87.1°F
Driest month:	April	92mm 3.6ins
Sunniest month:	August	7.1hrs
Coldest month:	January	5°C 41°F
Wettest month:	December	216mm 8.5ins
Warmest sea:	August	25.2°C 77.4°F

Map showing location of Niigata (37.90222, 139.02361)