Annual mean 18°C · wettest around March · prevailing wind SE
Warmest
27.8 °C
Coldest
14.7 °C
Wettest
40%
Windiest
4.9 m/s
Prevailing
SE
4.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Newcastle over the whole year is 18°C. January is the hottest month, with highs of about 27°C; July is the coldest, with lows of about 8°C. Newcastle has no sharply defined rainy season: the chance of rain on a given day runs from 13% in September, the driest month, to 23% in March, the wettest. Winds in Newcastle are highest in December, averaging 3.5 m/s (13 km/h), and lightest in April, at 2.4 m/s (9 km/h). The prevailing wind is from the SE. The clearest skies in Newcastle come in August, when the sky is typically 39% covered; March is the cloudiest month, at 56%.
Month by month Newcastle climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
27°C
21°C
27°C
19%
51%
3.3 m/s
53
52
23
February
26°C
20°C
26°C
20%
51%
3.2 m/s
59
55
25
March
25°C
19°C
25°C
23%
56%
3.0 m/s
67
46
33
April
22°C
15°C
21°C
18%
48%
2.4 m/s
81
22
58
May
18°C
11°C
16°C
14%
44%
2.5 m/s
64
3
80
June
15°C
9°C
13°C
19%
51%
2.7 m/s
36
0
79
July
15°C
8°C
12°C
15%
41%
2.9 m/s
31
0
78
August
17°C
9°C
13°C
15%
39%
2.8 m/s
43
0
81
September
20°C
12°C
17°C
13%
39%
3.0 m/s
65
5
78
October
22°C
15°C
20°C
17%
48%
3.2 m/s
79
16
69
November
24°C
17°C
22°C
15%
47%
3.4 m/s
79
26
58
December
26°C
20°C
25°C
14%
49%
3.5 m/s
64
41
38
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Newcastle weather by season
Year round, Newcastle has days of about 15°C at their warmest in June, its coolest month, and 27°C in January, its warmest; the coolest hours of the day run from 8°C to 21°C through the year, and the average temperature over the year is 18°C around the clock. Rain is most likely around March and least likely around September. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Newcastle weather in winterJune to August
High 16°CLow 9°CRain 16%
Winter in Newcastle has typical daily highs of about 16°C and lows of about 9°C, with a 16% chance of rain on a given day.
Newcastle weather in springSeptember to November
High 22°CLow 15°CRain 15%
Spring in Newcastle has typical daily highs of about 22°C and lows of about 15°C, with a 15% chance of rain on a given day.
Newcastle weather in summerDecember to February
High 26°CLow 20°CRain 18%
Summer in Newcastle has typical daily highs of about 26°C and lows of about 20°C, with a 18% chance of rain on a given day.
Newcastle weather in autumnMarch to May
High 22°CLow 15°CRain 19%
Autumn in Newcastle has typical daily highs of about 22°C and lows of about 15°C, with a 19% chance of rain on a given day.
When is the rainy season in Newcastle?
Newcastle has no sharply defined rainy season: the chance of rain on a given day runs from 13% in September, the driest month, to 23% in March, the wettest.
What time of year is Newcastle windiest?
Winds in Newcastle are highest in December, averaging 3.5 m/s (13 km/h), and lightest in April, at 2.4 m/s (9 km/h). The prevailing wind is from the SE.
What is the average temperature in Newcastle year round?
The average temperature in Newcastle over the whole year is 18°C. January is the hottest month, with highs of about 27°C; July is the coldest, with lows of about 8°C.