Niigata Water Temperature

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Niigata is a city close to Sea of Japan. August is the month with the warmest water temperature at 81°F / 27.2°C. The coolest month is March with an avg. water temperature of 49.3°F / 9.6°C. May is the sunniest at 0.8in / 20.7mm and December the wettest month with 9in / 228.4mm. The average air temperature is around 78.4°F / 25.8°C, August is the hottest month in a year. February is the coolest with 35.8°F / 2.1°C average air temperature. mild temperate climate with hot summer would be the climate here. August, September, June, July would be the best time to visit.

Niigata Summary

Description Value
Current water temperature /
Warmest Month Water Temperature: August with 27.2°C / 81°F
Coldest Month Water Temperature: March with 9.6°C / 49.3°F
Warmest Month Air Temperature: August with 25.8°C / 78.4°F
Coldest Month Air Temperature: February with 2.1°C / 35.8°F
Wettest Month: December with 228.4mm / 9in
Driest Month: May with 20.7mm / 0.8in
Highest Humidity July with 84.3%
Lowest Humidity March with 69.4%
Best Time to Visit: August, September, June, July
Climate Classification mild temperate climate with hot summer

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Niigata water temperature by month

Sea of Japan water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

13.5 12.4 10.9

February

11 10.4 9.8

March

10 9.7 9.4

April

12.7 11 9.9

May

17.7 15 12.8

June

22.1 20.1 17.7

July

26.3 23.9 22.1

August

27.5 27.1 26.4

September

26.7 25.5 23.9

October

23.7 22 20.3

November

20.3 18.6 17

December

16.9 15.3 13.7

Sea of Japan water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

56.3 54.3 51.6

February

51.8 50.7 49.6

March

50 49.5 48.9

April

54.9 51.8 49.8

May

63.9 59 55

June

71.8 68.2 63.9

July

79.3 75 71.8

August

81.5 80.8 79.5

September

80.1 77.9 75

October

74.7 71.6 68.5

November

68.5 65.5 62.6

December

62.4 59.5 56.7
August is the month with the warmest water temperature at 81°F / 27.2°C. The month with the coldest is March with an average water temperature of 49.3°F / 9.6°C.

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Niigata weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Apr. 30
Broken clouds
57 °F
49°F
14 °C
9°C
2mph (4km/h)
southwest
0in (1mm)
35 %
72%
May. 01
Few clouds
73 °F
48°F
23 °C
9°C
2mph (3km/h)
east-southeast
0in (0mm)
0 %
57%
May. 02
Light rain
67 °F
56°F
20 °C
13°C
3mph (6km/h)
south-southeast
0in (8mm)
80 %
67%
May. 03
Light shower rain
63 °F
52°F
17 °C
11°C
2mph (3km/h)
southwest
0in (3mm)
60 %
73%
May. 04
Heavy rain
60 °F
53°F
15 °C
12°C
2mph (3km/h)
west-southwest
2in (40mm)
95 %
77%
May. 05
Light rain
64 °F
51°F
18 °C
11°C
2mph (4km/h)
west-southwest
0in (5mm)
70 %
67%
May. 06
Scattered clouds
65 °F
53°F
18 °C
12°C
1mph (2km/h)
east
0in (1mm)
20 %
65%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
May. 07
Scattered clouds
66 °F
57°F
19 °C
14°C
2mph (3km/h)
south-southwest
0in (1mm)
25 %
69%
May. 08
Scattered clouds
64 °F
55°F
18 °C
13°C
2mph (3km/h)
southwest
0in (0mm)
0 %
72%
May. 09
Scattered clouds
63 °F
55°F
17 °C
13°C
2mph (3km/h)
west-southwest
0in (0mm)
0 %
69%
May. 10
Light shower rain
63 °F
53°F
17 °C
12°C
2mph (3km/h)
south-southwest
0in (5mm)
70 %
71%
May. 11
Light shower rain
63 °F
55°F
17 °C
13°C
1mph (2km/h)
southeast
0in (4mm)
65 %
84%
May. 12
Overcast clouds
67 °F
57°F
19 °C
14°C
1mph (1km/h)
south
0in (0mm)
20 %
80%
May. 13
Broken clouds
68 °F
57°F
20 °C
14°C
0mph (1km/h)
southwest
0in (0mm)
10 %
79%
May. 14
Few clouds
64 °F
54°F
18 °C
12°C
1mph (1km/h)
northwest
0in (0mm)
20 %
85%
May. 15
Clear Sky
63 °F
54°F
17 °C
12°C
1mph (1km/h)
south-southeast
0in (0mm)
0 %
83%

Niigata weather by month / climate table

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

5 2.2 -0.9 223.7 27 74.8%

February

7.3 2.1 -1.8 129.2 22 73.9%

March

11.2 5.3 0.2 81.3 18 69.4%

April

16.8 10.2 4.4 20.7 5 71.7%

May

22 15.7 9.4 21.3 2 75.2%

June

25.3 20.2 13.8 35.3 3 79.7%

July

28.7 24.1 19.7 148.1 13 84.3%

August

30 25.8 21.9 62.5 6 80.9%

September

27.9 22.3 16.7 75.5 9 78%

October

22.4 16.4 10.6 72.6 0 74.4%

November

17 10.6 5.8 144.8 18 74.5%

December

10.7 5.2 1.2 228.4 26 74.9%

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

41 36 30.4 8.8 27 74.8%

February

45.1 35.8 28.8 5.1 22 73.9%

March

52.2 41.5 32.4 3.2 18 69.4%

April

62.2 50.4 39.9 0.8 5 71.7%

May

71.6 60.3 48.9 0.8 2 75.2%

June

77.5 68.4 56.8 1.4 3 79.7%

July

83.7 75.4 67.5 5.8 13 84.3%

August

86 78.4 71.4 2.5 6 80.9%

September

82.2 72.1 62.1 3 9 78%

October

72.3 61.5 51.1 2.9 0 74.4%

November

62.6 51.1 42.4 5.7 18 74.5%

December

51.3 41.4 34.2 9 26 74.9%
May is the driest at 0.8in / 20.7mm and December the wettest month with 9in / 228.4mm. With an average temperature of 78.4°F / 25.8°C, August is the warmest month in a year. February is the coldest with 35.8°F / 2.1°C average temperature.

Activities & POI in Niigata

Type of Activity List
Attraction 萬代橋
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