Whanganui Water Temperature

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Whanganui is a city close to Tasman Sea. February is the month with the highest water temperature at 65.5°F / 18.6°C.
The coldest month is August with an average water temperature of 54.1°F / 12.3°C.
July is the driest at 0.3in / 8.8mm and December the wettest month with 4.7in / 119.9mm.
With an average air temperature of 63.7°F / 17.6°C, February is the warmest month in a year. July is the coldest with 48°F / 8.9°C average air temperature.
The Climate is described as temperate oceanic climate with warm summer. Best time to Visit would be in January, February, March, December.

Whanganui Summary

Description Value
Current water temperature /
Warmest Month Water Temperature: February with 18.6°C / 65.5°F
Coldest Month Water Temperature: August with 12.3°C / 54.1°F
Warmest Month Air Temperature: February with 17.6°C / 63.7°F
Coldest Month Air Temperature: July with 8.9°C / 48°F
Wettest Month: December with 119.9mm / 4.7in
Driest Month: July with 8.8mm / 0.3in
Highest Humidity July with 81.7%
Lowest Humidity February with 75.7%
Best Time to Visit: January, February, March, December
Climate Classification temperate oceanic climate with warm summer

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Whanganui water temperature by month

Tasman Sea water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

18.7 17.8 17.2

February

18.7 18.5 18.3

March

18.5 18 17.5

April

17.7 16.9 16.3

May

16.3 15.6 14.7

June

14.7 13.9 13.1

July

13.3 12.7 12.3

August

12.5 12.4 12.3

September

13.1 12.7 12.3

October

14.3 13.6 13.1

November

15.4 14.8 14.2

December

17.2 16.4 15.3

Tasman Sea water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

65.7 64 63

February

65.7 65.3 64.9

March

65.3 64.4 63.5

April

63.9 62.4 61.3

May

61.3 60.1 58.5

June

58.5 57 55.6

July

55.9 54.9 54.1

August

54.5 54.3 54.1

September

55.6 54.9 54.1

October

57.7 56.5 55.6

November

59.7 58.6 57.6

December

63 61.5 59.5
The warmest water temperature are in February with around 65.5°F / 18.6°C. The coldest in August with an average water temperature of 54.1°F / 12.3°C.

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Whanganui weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Apr. 20
Thunderstorm with rain
76 °F
66°F
25 °C
19°C
3mph (6km/h)
south-southwest
0in (2mm)
45 %
69%
Apr. 21
Heavy rain
67 °F
59°F
19 °C
15°C
2mph (3km/h)
southeast
1in (16mm)
90 %
86%
Apr. 22
Overcast clouds
63 °F
57°F
17 °C
14°C
1mph (1km/h)
south-southwest
0in (1mm)
35 %
85%
Apr. 23
Scattered clouds
59 °F
50°F
15 °C
10°C
3mph (4km/h)
southeast
0in (1mm)
30 %
76%
Apr. 24
Clear Sky
64 °F
46°F
18 °C
8°C
3mph (4km/h)
east-southeast
0in (0mm)
0 %
65%
Apr. 25
Clear Sky
66 °F
42°F
19 °C
6°C
1mph (2km/h)
east-southeast
0in (0mm)
0 %
72%
Apr. 26
Few clouds
68 °F
44°F
20 °C
7°C
1mph (2km/h)
east-southeast
0in (0mm)
0 %
66%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Apr. 27
Scattered clouds
70 °F
46°F
21 °C
8°C
1mph (2km/h)
south-southeast
0in (0mm)
0 %
69%
Apr. 28
Light rain
72 °F
48°F
22 °C
9°C
2mph (3km/h)
northeast
0in (3mm)
45 %
71%
Apr. 29
Light shower rain
64 °F
58°F
18 °C
14°C
2mph (4km/h)
east
0in (2mm)
50 %
70%
Apr. 30
Light rain
58 °F
48°F
14 °C
9°C
2mph (3km/h)
east-southeast
0in (9mm)
80 %
85%
May. 01
Light shower rain
60 °F
48°F
15 °C
9°C
3mph (5km/h)
south-southwest
0in (3mm)
60 %
85%
May. 02
Light shower rain
66 °F
50°F
19 °C
10°C
1mph (1km/h)
east
0in (3mm)
60 %
77%
May. 03
Light shower rain
64 °F
51°F
18 °C
10°C
1mph (1km/h)
southeast
0in (2mm)
55 %
84%
May. 04
Light shower rain
58 °F
47°F
14 °C
8°C
2mph (3km/h)
east
0in (4mm)
65 %
96%
May. 05
Light rain
60 °F
52°F
16 °C
11°C
2mph (3km/h)
south-southwest
0in (9mm)
80 %
93%

Whanganui weather by month / climate table

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

22.7 17.3 13.1 35.6 0 76.9%

February

22.2 17.6 13.1 25.9 1 75.7%

March

21 16.3 12.1 29.1 0 76.6%

April

19.1 13.9 9.8 12.5 1 78.7%

May

16.4 12.1 7.8 61.2 3 80.9%

June

13.5 10 6.9 43.8 6 81.5%

July

12.6 8.9 4.9 8.8 5 81.7%

August

13.2 9.4 5.3 40.4 13 81.1%

September

15.3 10.7 7 70 6 79.6%

October

16.6 12 8.2 116.4 0 79%

November

18.2 13.5 9.6 85.2 5 77.4%

December

20 15.8 11.8 119.9 8 78.1%

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

72.9 63.1 55.6 1.4 0 76.9%

February

72 63.7 55.6 1 1 75.7%

March

69.8 61.3 53.8 1.1 0 76.6%

April

66.4 57 49.6 0.5 1 78.7%

May

61.5 53.8 46 2.4 3 80.9%

June

56.3 50 44.4 1.7 6 81.5%

July

54.7 48 40.8 0.3 5 81.7%

August

55.8 48.9 41.5 1.6 13 81.1%

September

59.5 51.3 44.6 2.8 6 79.6%

October

61.9 53.6 46.8 4.6 0 79%

November

64.8 56.3 49.3 3.4 5 77.4%

December

68 60.4 53.2 4.7 8 78.1%
July is the driest at 0.3in / 8.8mm and December the wettest month with 4.7in / 119.9mm. With an average temperature of 63.7°F / 17.6°C, February is the warmest month in a year. July is the coldest with 48°F / 8.9°C average temperature.

Activities & POI in Whanganui

Type of Activity List
Attraction Durie Elevator (tunnel entrance), Durie Hill Tower, Wanganui Opera House, Moutoa Gardens, Ward Observatory, Queens Park / Pukenamu, Wanganui War Memorial Centre, Bell Tower at Cooks Gardens, Splash Centre, Wanganui Golf Club, St Paul's Memorial Church, Putiki, Wanganui Rugby, Kowhai Park, Riverland Family Park, The Winter Gardens
Golf Course Belmont Golf Course, Tawhero Golf Course
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