Onna Water Temperature

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Onna is a village close to East China Sea. August is the month with the highest water temperature at 84°F / 28.9°C.
The coldest month is February with an average water temperature of 70.2°F / 21.2°C.
May is the driest at 0.4in / 9.6mm and July the wettest month with 9.4in / 239.2mm.
With an average air temperature of 78.4°F / 25.8°C, August is the warmest month in a year. January is the coldest with 41.4°F / 5.2°C average air temperature.
The Climate is described as mild temperate climate with hot summer. Best time to Visit would be in April, October, November, June, July, August, September.

Onna Summary

Description Value
Current water temperature /
Warmest Month Water Temperature: August with 28.9°C / 84°F
Coldest Month Water Temperature: February with 21.2°C / 70.2°F
Warmest Month Air Temperature: August with 25.8°C / 78.4°F
Coldest Month Air Temperature: January with 5.2°C / 41.4°F
Wettest Month: July with 239.2mm / 9.4in
Driest Month: May with 9.6mm / 0.4in
Highest Humidity July with 86.3%
Lowest Humidity February with 67.8%
Best Time to Visit: April, October, November, June, July, August, September
Climate Classification mild temperate climate with hot summer

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Onna water temperature by month

East China Sea water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

22.6 22 21.4

February

21.5 21.2 21.1

March

21.6 21.3 20.9

April

22.9 22.2 21.5

May

25.2 24.1 22.9

June

27.9 26.3 25.3

July

29 28.4 27.9

August

29 28.8 28.5

September

28.8 28.2 27.5

October

27.6 26.8 26

November

26.1 25.1 24.2

December

24.1 23.5 22.7

East China Sea water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

72.7 71.6 70.5

February

70.7 70.2 70

March

70.9 70.3 69.6

April

73.2 72 70.7

May

77.4 75.4 73.2

June

82.2 79.3 77.5

July

84.2 83.1 82.2

August

84.2 83.8 83.3

September

83.8 82.8 81.5

October

81.7 80.2 78.8

November

79 77.2 75.6

December

75.4 74.3 72.9
August is the month with the warmest water temperature at 84°F / 28.9°C. The month with the coldest is February with an average water temperature of 70.2°F / 21.2°C.

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Onna weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Dec. 23
Broken clouds
65 °F
62°F
18 °C
17°C
3mph (5km/h)
north-northeast
0in (0mm)
10 %
64%
Dec. 24
Overcast clouds
67 °F
63°F
19 °C
17°C
3mph (5km/h)
north-northeast
0in (1mm)
30 %
67%
Dec. 25
Scattered clouds
70 °F
66°F
21 °C
19°C
2mph (4km/h)
east-northeast
0in (0mm)
20 %
64%
Dec. 26
Light rain
70 °F
66°F
21 °C
19°C
2mph (4km/h)
south
0in (3mm)
50 %
70%
Dec. 27
Broken clouds
65 °F
64°F
19 °C
18°C
3mph (5km/h)
north-northeast
0in (0mm)
20 %
68%
Dec. 28
Overcast clouds
64 °F
61°F
18 °C
16°C
3mph (6km/h)
southwest
0in (1mm)
40 %
68%
Dec. 29
Overcast clouds
64 °F
60°F
18 °C
15°C
4mph (6km/h)
east-southeast
0in (1mm)
35 %
60%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Dec. 30
Overcast clouds
69 °F
63°F
21 °C
17°C
2mph (4km/h)
east-southeast
0in (0mm)
15 %
64%
Dec. 31
Broken clouds
72 °F
67°F
22 °C
19°C
2mph (4km/h)
south
0in (1mm)
25 %
73%
Jan. 01
Broken clouds
65 °F
63°F
18 °C
17°C
4mph (6km/h)
west
0in (0mm)
20 %
62%
Jan. 02
Broken clouds
66 °F
59°F
19 °C
15°C
4mph (6km/h)
north-northeast
0in (0mm)
0 %
56%
Jan. 03
Overcast clouds
65 °F
59°F
19 °C
15°C
3mph (5km/h)
northeast
0in (1mm)
20 %
60%
Jan. 04
Broken clouds
65 °F
59°F
19 °C
15°C
4mph (6km/h)
northeast
0in (1mm)
20 %
60%
Jan. 05
Broken clouds
69 °F
61°F
20 °C
16°C
4mph (6km/h)
east-northeast
0in (1mm)
25 %
61%
Jan. 06
Few clouds
70 °F
60°F
21 °C
16°C
3mph (4km/h)
northeast
0in (1mm)
15 %
66%
Jan. 07
Light shower rain
67 °F
60°F
19 °C
15°C
5mph (8km/h)
north-northeast
0in (2mm)
55 %
62%

Onna weather by month / climate table

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

8.5 5.2 2.2 41.5 1 68%

February

11.6 5.9 2.2 76.8 2 67.8%

March

14.5 8.8 3.9 37.2 3 68%

April

18.3 13.3 7.5 33 3 70.8%

May

22.7 17.6 12.6 9.6 2 75.6%

June

25.5 21.1 16.3 222.9 14 83.6%

July

29 24.7 21.2 239.2 14 86.3%

August

29.6 25.8 22.7 177.3 12 82.4%

September

27.8 23.3 18.5 104.9 10 79.6%

October

24.1 18.2 12.5 25.3 0 75.4%

November

18.9 12.9 8 11.3 0 72.8%

December

13.4 7.8 3.4 32.8 0 70%

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

47.3 41.4 36 1.6 1 68%

February

52.9 42.6 36 3 2 67.8%

March

58.1 47.8 39 1.5 3 68%

April

64.9 55.9 45.5 1.3 3 70.8%

May

72.9 63.7 54.7 0.4 2 75.6%

June

77.9 70 61.3 8.8 14 83.6%

July

84.2 76.5 70.2 9.4 14 86.3%

August

85.3 78.4 72.9 7 12 82.4%

September

82 73.9 65.3 4.1 10 79.6%

October

75.4 64.8 54.5 1 0 75.4%

November

66 55.2 46.4 0.4 0 72.8%

December

56.1 46 38.1 1.3 0 70%
The hottest avg. temperature is around 78.4°F / 25.8°C, August is the month with the highest temperature. January is the coolest with 41.4°F / 5.2°C average temperature. May is the month with the lowest precipitation of 0.4in / 9.6mm and July with the maximum precipitation in a year with 9.4in / 239.2mm.

Activities & POI in Onna

Type of Activity List
Beach みゆきビーチ, サンマリナビーチ, 万座ビーチ, ムーンビーチ
Attraction 沖縄工芸村
Golf Course 沖縄国際ゴルフ倶楽部, 東山カントリークラブ
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