Newcastle Water Temperature

Newcastle is a town close to Irish Sea. temperate oceanic climate with warm summer would be the climate here. September is the month with the highest water temperature at 57°F / 13.9°C. The month with the lowest is March with an average water temperature of 45°F / 7.2°C. The avg. air temperature is around 57.7°F / 14.3°C, July is the month with the highest temperature. February is the coolest with 41.2°F / 5.1°C average air temperature. April is the month with the min. precipitation of 1.5in / 37.4mm and October with the max. precipitation in a year with 5.2in / 131mm. June, July, August, September would be the best time to visit this place.

Newcastle Summary

Description Value
Current water temperature / 37.4 °F
Warmest Month Water Temperature: September with 13.9°C / 57°F
Coldest Month Water Temperature: March with 7.2°C / 45°F
Warmest Month Air Temperature: July with 14.3°C / 57.7°F
Coldest Month Air Temperature: February with 5.1°C / 41.2°F
Wettest Month: October with 131mm / 5.2in
Driest Month: April with 37.4mm / 1.5in
Highest Humidity December with 84.3%
Lowest Humidity May with 78.3%
Best Time to Visit: June, July, August, September
Climate Classification temperate oceanic climate with warm summer

Newcastle water temperature by month

Irish Sea water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

9.3 8.6 8

February

8 7.6 7.3

March

7.4 7.2 7.1

April

8.5 7.9 7.4

May

10.2 9.3 8.5

June

12.1 11.2 10.2

July

13.5 12.9 12.1

August

14.1 13.8 13.4

September

14 13.9 13.7

October

13.7 13.2 12.7

November

12.7 11.9 11.1

December

11 10.2 9.3

Irish Sea water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

48.7 47.5 46.4

February

46.4 45.7 45.1

March

45.3 45 44.8

April

47.3 46.2 45.3

May

50.4 48.7 47.3

June

53.8 52.2 50.4

July

56.3 55.2 53.8

August

57.4 56.8 56.1

September

57.2 57 56.7

October

56.7 55.8 54.9

November

54.9 53.4 52

December

51.8 50.4 48.7
September is the month with the highest water temperature at 57°F / 13.9°C. The month with the lowest is March with an average water temperature of 45°F / 7.2°C.

Newcastle weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Jan. 27
Overcast clouds
42 °F
37°F
6 °C
3°C
1mph (2km/h)
south-southeast
0in (0mm)
20 %
93%
Jan. 28
Heavy rain
41 °F
37°F
5 °C
3°C
2mph (3km/h)
southeast
1in (28mm)
95 %
92%
Jan. 29
Heavy rain
44 °F
37°F
7 °C
3°C
2mph (3km/h)
south-southeast
1in (16mm)
95 %
93%
Jan. 30
Broken clouds
40 °F
36°F
5 °C
2°C
3mph (4km/h)
east
0in (0mm)
15 %
63%
Jan. 31
Overcast clouds
45 °F
34°F
7 °C
1°C
3mph (4km/h)
south
0in (0mm)
20 %
65%
Feb. 01
Light rain
42 °F
36°F
5 °C
2°C
4mph (6km/h)
south
0in (7mm)
90 %
85%
Feb. 02
Overcast clouds
44 °F
36°F
6 °C
2°C
1mph (1km/h)
south-southwest
0in (1mm)
50 %
84%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Feb. 03
Light rain
42 °F
38°F
6 °C
3°C
3mph (4km/h)
west-southwest
0in (9mm)
90 %
76%
Feb. 04
Broken clouds
42 °F
36°F
6 °C
2°C
2mph (3km/h)
south-southwest
0in (0mm)
0 %
75%
Feb. 05
Scattered clouds
39 °F
34°F
4 °C
1°C
1mph (2km/h)
southeast
0in (0mm)
15 %
85%
Feb. 06
Light shower rain
35 °F
33°F
2 °C
1°C
5mph (8km/h)
east-northeast
0in (2mm)
75 %
73%
Feb. 07
Overcast clouds
34 °F
36°F
1 °C
2°C
3mph (5km/h)
northeast
0in (1mm)
50 %
65%
Feb. 08
Mix snow/rain
37 °F
34°F
3 °C
1°C
3mph (4km/h)
east-southeast
0in (0mm)
45 %
65%
Feb. 09
Broken clouds
38 °F
32°F
4 °C
0°C
2mph (2km/h)
south-southeast
0in (0mm)
0 %
62%
Feb. 10
Overcast clouds
37 °F
32°F
3 °C
0°C
2mph (4km/h)
south-southwest
0in (0mm)
0 %
57%
Feb. 11
Overcast clouds
41 °F
33°F
5 °C
0°C
2mph (3km/h)
south-southwest
0in (0mm)
0 %
73%

Newcastle weather by month / climate table

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

7.8 5.2 3 101.2 11 83.5%

February

7.4 5.1 2.8 75.3 7 81.7%

March

8.7 5.8 1.9 46.3 3 80.3%

April

11.5 7.6 4.3 37.4 5 79%

May

13.4 10 6.2 48.8 6 78.3%

June

15.9 12.6 9.5 62.3 5 79.4%

July

17.1 14.3 11.5 55.5 10 80.8%

August

16.9 14.2 11.5 121.3 11 81.9%

September

16 13 10.1 77.4 7 81.9%

October

13.5 10.5 7.7 131 0 82.1%

November

10.7 7.7 5 122 13 83.4%

December

8.6 5.8 3.4 96.3 9 84.3%

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

46 41.4 37.4 4 11 83.5%

February

45.3 41.2 37 3 7 81.7%

March

47.7 42.4 35.4 1.8 3 80.3%

April

52.7 45.7 39.7 1.5 5 79%

May

56.1 50 43.2 1.9 6 78.3%

June

60.6 54.7 49.1 2.5 5 79.4%

July

62.8 57.7 52.7 2.2 10 80.8%

August

62.4 57.6 52.7 4.8 11 81.9%

September

60.8 55.4 50.2 3 7 81.9%

October

56.3 50.9 45.9 5.2 0 82.1%

November

51.3 45.9 41 4.8 13 83.4%

December

47.5 42.4 38.1 3.8 9 84.3%
The hottest avg. temperature is around 57.7°F / 14.3°C, July is the month with the highest temperature. February is the coolest with 41.2°F / 5.1°C average temperature. April is the month with the lowest precipitation of 1.5in / 37.4mm and October with the maximum precipitation in a year with 5.2in / 131mm.

Activities & POI in Newcastle

Type of Activity List
Golf Course Royal County Down Golf Course
Caravan Site Bonnys Caravan Park, Woodcroft Caravan park, Mourneview Caravan Park, Windsor Caravan Park
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