Annual mean 19°C · wettest around July · prevailing wind S
Warmest
29.9 °C
Coldest
15.8 °C
Wettest
41%
Windiest
6.1 m/s
Prevailing
S
5.5 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 Yanchep over the whole year is 19°C. January is the hottest month, with highs of about 29°C; August is the coldest, with lows of about 11°C. The rainy (wet) season in Yanchep runs from June to September, peaking in July with a 36% chance of rain on a given day. The dry season is October to May; December is the driest month, at 4%. Winds in Yanchep are highest in December, averaging 5.7 m/s (21 km/h), and lightest in May, at 4.1 m/s (15 km/h). The prevailing wind is from the S. The clearest skies in Yanchep come in January, when the sky is typically 20% covered; July is the cloudiest month, at 57%.
Month by month Yanchep 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
29°C
20°C
26°C
5%
20%
5.6 m/s
56
48
29
February
29°C
20°C
26°C
5%
25%
5.5 m/s
54
50
28
March
28°C
19°C
25°C
7%
30%
5.1 m/s
65
46
36
April
24°C
16°C
21°C
13%
35%
4.4 m/s
81
23
61
May
21°C
13°C
17°C
19%
38%
4.1 m/s
74
4
80
June
18°C
11°C
14°C
29%
50%
4.1 m/s
48
0
82
July
17°C
11°C
13°C
36%
57%
4.6 m/s
33
0
77
August
17°C
11°C
13°C
32%
53%
4.7 m/s
37
0
79
September
19°C
11°C
15°C
20%
46%
4.5 m/s
54
3
80
October
22°C
13°C
18°C
15%
41%
4.9 m/s
68
11
74
November
25°C
16°C
21°C
8%
30%
5.4 m/s
71
25
59
December
28°C
19°C
25°C
4%
20%
5.7 m/s
61
42
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 Yanchep weather by season
Year round, Yanchep has days of about 17°C at their warmest in July, its coolest month, and 29°C in January, its warmest; the coolest hours of the day run from 11°C to 20°C through the year, and the average temperature over the year is 19°C around the clock. Rain is most likely around July and least likely around December. 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.
Yanchep weather in winterJune to August
High 17°CLow 11°CRain 32%
Winter in Yanchep has typical daily highs of about 17°C and lows of about 11°C, with a 32% chance of rain on a given day.
Yanchep weather in springSeptember to November
High 22°CLow 14°CRain 14%
Spring in Yanchep has typical daily highs of about 22°C and lows of about 14°C, with a 14% chance of rain on a given day.
Yanchep weather in summerDecember to February
High 29°CLow 19°CRain 5%
Summer in Yanchep has typical daily highs of about 29°C and lows of about 19°C, with a 5% chance of rain on a given day.
Yanchep weather in autumnMarch to May
High 24°CLow 16°CRain 13%
Autumn in Yanchep has typical daily highs of about 24°C and lows of about 16°C, with a 13% chance of rain on a given day.
When is the rainy season in Yanchep?
The rainy (wet) season in Yanchep runs from June to September, peaking in July with a 36% chance of rain on a given day. The dry season is October to May; December is the driest month, at 4%.
What time of year is Yanchep windiest?
Winds in Yanchep are highest in December, averaging 5.7 m/s (21 km/h), and lightest in May, at 4.1 m/s (15 km/h). The prevailing wind is from the S.
What is the average temperature in Yanchep year round?
The average temperature in Yanchep over the whole year is 19°C. January is the hottest month, with highs of about 29°C; August is the coldest, with lows of about 11°C.