Hottest (avg)
#11 / 12
On the cooler side.
August in context
How it compares to the rest of the year in Perth.
Wettest (avg)
#3 / 12
Among the wetter months.
Daylight Hours
#9 / 12
Around the yearly average.
Windiest (avg)
#9 / 12
Close to the yearly wind average.
Highest UV
#9 / 12
Near the middle of the yearly UV range.
Most Humid
#2 / 12
Humidity sits on the higher side.
Monthly climate breakdown
A detailed look at the typical climate conditions for August.
Thermal profile
Temperature
Typical daytime high
- Nighttime low
-
- Feels like (avg)
-
Light window
Sunshine
11 h
Average daylight
- UV index (max)
- 6
- Typical sun hours
- 06:50 - 17:49
Wet-day pattern
Rain & Snow
Typical rainfall
- Rainy days
- 14 days
- Cloud cover (avg)
- 46%
Air feel
Humidity & Wind
75%
Average humidity
- Wind (avg)
-
- Wind (max gusts)
-
Historical daily baseline
Daily climate explorer
Pick a day to inspect the usual conditions through August in Perth. Based on a 30-year historical climate baseline, not a forecast.
Primary control
Select a day
Scroll to compare daily conditions. The summary updates with your selection.
Secondary context
Monthly trend
Median daytime highs across the month, with a softer low line.
Median temperatureMedian lowTypical range
Day 15 selected for August. Temperature 16.7°C.
Historical disruption baseline
Typical disruptions in August
Based on 30 years of historical data, these are the disruption patterns most likely to affect plans in August.
Cold High impact
Cold feels-like nights Measures: Cold feels-like nights (min <=5C). Observed about 29% of days (8.9 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
8.9 days / month
- Share of days
- ~29% of days
- Upper edge
- Up to ~5°C (P95)
Why this matters
Cold feels-like nights are possible on ~9 days. Long outdoor blocks become harder to sustain, so layer up and keep a warm indoor fallback nearby.
Rain High impact
Rain disruption Measures: Likely rain disruption days. Observed about 20% of days (6.3 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
6.3 days / month
- Share of days
- ~20% of days
- Upper edge
- Up to ~26mm (P95)
Why this matters
Rain disruption risk appears on ~6 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Washout risk Measures: Washout day risk. Observed about 20% of days (6.1 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
6.1 days / month
- Share of days
- ~20% of days
- Upper edge
- Up to ~26mm (P95)
Why this matters
Washout conditions are possible on ~6 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind High impact
Strong gusts Measures: Strong gust days (>=60 km/h). Observed about 16% of days (4.8 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
4.8 days / month
- Share of days
- ~16% of days
- Upper edge
- Up to ~91km/h (P95)
Why this matters
Strong gusts are possible on ~5 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Wind High impact
Stormy conditions Measures: Storm-impact proxy days. Observed about 9% of days (2.9 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
2.9 days / month
- Share of days
- ~9% of days
- Upper edge
- Up to ~90km/h (P95)
Why this matters
Stormy conditions are possible on ~3 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Wind High impact
Severe gusts Measures: Severe gust days (>=80 km/h). Observed about 3% of days (0.8 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.8 days / month
- Share of days
- ~3% of days
- Upper edge
- Up to ~102km/h (P95)
Why this matters
Severe gusts are possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Show all disruptions (16 more)
Rain High impact
Washout run Measures: Multi-day washout runs. Observed about 1.4 days/month in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
1.4 days / month
- Share of days
- —
- Upper edge
- Up to ~24mm (P95)
Why this matters
Multi-day washout runs are possible on ~1 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind High impact
Wind disruption Measures: Disruptive wind days. Observed about 2% of days (0.6 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.6 days / month
- Share of days
- ~2% of days
- Upper edge
- Up to ~95km/h (P95)
Why this matters
Disruptive wind is possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Rain High impact
Very heavy rain Measures: Very heavy rain days (>=25mm). Observed about 1% of days (0.4 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.4 days / month
- Share of days
- ~1% of days
- Upper edge
- Up to ~34mm (P95)
Why this matters
Very heavy rain is possible on ~0 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind High impact
Wind disruption run Measures: Multi-day wind disruption runs. Observed about 0.1 days/month in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.1 days / month
- Share of days
- —
- Upper edge
- Up to ~94km/h (P95)
Why this matters
Multi-day disruptive wind runs are possible on ~0 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Rain Moderate
Heavy rain days Measures: Heavy rain days (>=10mm). Observed about 11% of days (3.5 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
3.5 days / month
- Share of days
- ~11% of days
- Upper edge
- Up to ~28mm (P95)
Why this matters
Heavy rain is possible on ~4 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain Minor
Wet days Measures: Wet days (>=0.1mm). Observed about 53% of days (16.6 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
16.6 days / month
- Share of days
- ~53% of days
- Upper edge
- Up to ~18mm (P95)
Why this matters
Measurable rain is possible on ~17 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Wind Minor
Gusty days Measures: Gusty days (>=40 km/h). Observed about 46% of days (14.4 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
14.4 days / month
- Share of days
- ~46% of days
- Upper edge
- Up to ~82km/h (P95)
Why this matters
Gusty conditions are possible on ~14 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Rain Minor
Rainy hours Measures: Rain-hours signal (>=3h rain). Observed about 43% of days (13.5 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
13.5 days / month
- Share of days
- ~43% of days
- Upper edge
- Up to ~19h (P95)
Why this matters
Several rainy hours are possible on ~13 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain Minor
Wet most of day Measures: Wet-most-of-day signal (>=6h rain). Observed about 33% of days (10.3 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
10.3 days / month
- Share of days
- ~33% of days
- Upper edge
- Up to ~20h (P95)
Why this matters
Wet-most-of-day conditions are possible on ~10 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Cloud Minor
Cloudy days Measures: Cloudy days (cloud cover >=60%). Observed about 32% of days (9.9 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
9.9 days / month
- Share of days
- ~32% of days
- Upper edge
- Up to ~93% (P95)
Why this matters
Cloudy skies are possible on ~10 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Humidity Minor
High humidity Measures: High humidity days (RH >=80%). Observed about 31% of days (9.6 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
9.6 days / month
- Share of days
- ~31% of days
- Upper edge
- Up to ~88% (P95)
Why this matters
High humidity is possible on ~10 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Wind Minor
Breezy days Measures: Breezy days (mean wind >=25 km/h). Observed about 14% of days (4.3 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
4.3 days / month
- Share of days
- ~14% of days
- Upper edge
- Up to ~37km/h (P95)
Why this matters
Breezy conditions are possible on ~4 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Cloud Minor
Mostly cloudy days Measures: Mostly cloudy days (cloud cover >=80%). Observed about 9% of days (2.8 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
2.8 days / month
- Share of days
- ~9% of days
- Upper edge
- Up to ~96% (P95)
Why this matters
Mostly cloudy skies are possible on ~3 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Wind Minor
Windy days Measures: Windy days (mean wind >=35 km/h). Observed about 2% of days (0.6 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.6 days / month
- Share of days
- ~2% of days
- Upper edge
- Up to ~43km/h (P95)
Why this matters
Strong mean winds are possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Cold Minor
Cold nights Measures: Cold nights (min <=5C). Observed about 2% of days (0.5 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.5 days / month
- Share of days
- ~2% of days
- Upper edge
- Up to ~5°C (P95)
Why this matters
Cold nights are possible on ~1 days. Long outdoor blocks become harder to sustain, so layer up and keep a warm indoor fallback nearby.
Cloud Minor
Overcast days Measures: Overcast days (cloud cover >=95%). Observed about 1% of days (0.3 days/month) in August. Historical risk signal only, not a day-by-day forecast.
Likely frequency
0.3 days / month
- Share of days
- ~1% of days
- Upper edge
- Up to ~100% (P95)
Why this matters
Overcast skies are possible on ~0 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Travel planning FAQ
Frequently asked questions
Quick answers to the weather questions you ask the most.
Is August a good time to visit Perth?
Typical August days in Perth reach highs of 17°C (63°F) with nights around 10°C (50°F). It usually feels mild by day and cool after dark. It is among the wetter months, so it is wise to have some indoor backup plans or flexible activities.
What are temperatures like in August?
In August, you can usually expect highs of 17°C (63°F) and lows near 10°C (50°F). That means mild days and cool nights, so pack layers you can add or remove.
How much does it rain in August?
Rainfall in August averages 92 mm (3.6 in) across roughly 14 days. Overall it is a quite rainy time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in August?
You can expect about 11 hours of daylight in August. Sunrise is typically around 06:50 and sunset near 17:49. Days are on the shorter side, so plan activities around limited daylight.
How strong is the sun in August?
UV levels are moderate (around 6); sunscreen and sunglasses are still a good idea.
Is it windy in August?
In August, average wind speeds are around 17 km/h (11 mph), with gusts on the windiest days reaching about 66 km/h (41 mph). On the ground, it is it is a notably windy place, and strong gusts are fairly common.