Perth, Australia 14-Day Forecast
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64°
Clear right now
Today: high 80°, low 64°
Updated just now
Perth weather for the next 14 days
Thursday, September 17
Sunny High 75° Low 64°Precipitation
7%
· 0.0 in
Max wind
18 mph
Humidity
68%
UV index
8 - Very High
Sunrise / sunset
06:12 AM / 06:09 PM
Friday, September 18
Patchy rain nearby High 70° Low 60°Precipitation
68%
· 0.09 in
Max wind
26 mph
Humidity
77%
UV index
8 - High
Sunrise / sunset
06:11 AM / 06:10 PM
Saturday, September 19
Patchy rain nearby High 63° Low 60°Precipitation
60%
· 0.08 in
Max wind
25 mph
Humidity
63%
UV index
4 - Moderate
Sunrise / sunset
06:09 AM / 06:10 PM
Sunday, September 20
Patchy rain nearby High 65° Low 59°Precipitation
69%
· 0.11 in
Max wind
10 mph
Humidity
76%
UV index
3 - Low
Sunrise / sunset
06:08 AM / 06:11 PM
Monday, September 21
Sunny High 70° Low 59°Precipitation
6%
· 0.0 in
Max wind
15 mph
Humidity
71%
UV index
7 - High
Sunrise / sunset
06:07 AM / 06:12 PM
Tuesday, September 22
Sunny High 65° Low 59°Precipitation
10%
· 0.0 in
Max wind
11 mph
Humidity
76%
UV index
6 - High
Sunrise / sunset
06:05 AM / 06:12 PM
Wednesday, September 23
Sunny High 63° Low 56°Precipitation
8%
· 0.0 in
Max wind
16 mph
Humidity
76%
UV index
6 - High
Sunrise / sunset
06:04 AM / 06:13 PM
Thursday, September 24
Sunny High 63° Low 57°Precipitation
5%
· 0.0 in
Max wind
10 mph
Humidity
67%
UV index
6 - High
Sunrise / sunset
06:03 AM / 06:13 PM
Friday, September 25
Sunny High 66° Low 58°Precipitation
63%
· 0.27 in
Max wind
19 mph
Humidity
70%
UV index
6 - High
Sunrise / sunset
06:01 AM / 06:14 PM
Saturday, September 26
Patchy rain nearby High 59° Low 56°Precipitation
78%
· 0.75 in
Max wind
27 mph
Humidity
63%
UV index
4 - Moderate
Sunrise / sunset
06:00 AM / 06:15 PM
Sunday, September 27
Patchy rain nearby High 60° Low 55°Precipitation
17%
· 0.0 in
Max wind
9 mph
Humidity
55%
UV index
6 - High
Sunrise / sunset
05:59 AM / 06:15 PM
Monday, September 28
Patchy rain nearby High 63° Low 57°Precipitation
61%
· 0.1 in
Max wind
12 mph
Humidity
68%
UV index
6 - High
Sunrise / sunset
05:57 AM / 06:16 PM
Tuesday, September 29
Sunny High 64° Low 54°Precipitation
5%
· 0.0 in
Max wind
14 mph
Humidity
68%
UV index
6 - High
Sunrise / sunset
05:56 AM / 06:17 PM
Perth 14-day outlook: the story
The warmest day of Perth's 14-day outlook is Wednesday, September 16 with a high near 80°F (26°C); the coolest night comes Tuesday, September 29, dipping to 54°F (12°C). The trend points cooler: week two runs about 7°F below week one. Highs over the next two weeks average 70°F (21°C), about 3°F (2°C) above the typical September high of 67°F (19°C).
Precipitation is most likely on Friday 18, Saturday 19, Sunday 20, Friday 25 and beyond; the wettest day looks like Saturday, September 26 with about 0.75 in (18.9 mm) expected. For the weekend, expect Saturday 63°F (17°C) and patchy rain nearby / Sunday 65°F (18°C) and patchy rain nearby.
For typical conditions month by month, see the Perth climate & average temperatures guide.
Perth forecast questions
Will it rain in Perth this week?
The forecast currently shows meaningful precipitation chances on 6 of the next 14 days, peaking around Saturday, September 26.
What will be the warmest day in Perth over the next 14 days?
Wednesday, September 16, with a forecast high near 80°F (26°C).
How accurate is a 14-day forecast for Perth?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Perth by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 86° | 66° | 2 | 0.9 in | 12.8 h/day | 53% |
| February | 86° | 67° | 2 | 0.8 in | 12.3 h/day | 56% |
| March | 83° | 65° | 5 | 1.6 in | 10.9 h/day | 60% |
| April | 76° | 59° | 6 | 1.6 in | 10.0 h/day | 65% |
| May | 70° | 54° | 8 | 3.1 in | 9.0 h/day | 69% |
| June | 65° | 51° | 12 | 4.1 in | 8.5 h/day | 75% |
| July | 63° | 51° | 15 | 4.6 in | 8.4 h/day | 76% |
| August | 64° | 50° | 13 | 4.2 in | 9.5 h/day | 75% |
| September | 67° | 51° | 7 | 1.7 in | 10.8 h/day | 72% |
| October | 71° | 55° | 6 | 1.5 in | 11.4 h/day | 68% |
| November | 78° | 59° | 4 | 0.9 in | 12.9 h/day | 61% |
| December | 83° | 64° | 2 | 0.3 in | 13.4 h/day | 54% |