Avg High
Perth in March
Avg Low
Rain
Daylight
12h
What to expect
In Perth, March sits in early autumn, a shoulder-season month where the feel can shift as the season turns. Daytime heat stands out once the sun is up, with evenings that ease back comfortably. Comfort is usually predictable, so a standard day plan works well. Daylight is moderate, so steady pacing works well.
March in context
How it compares to the rest of the year in Perth.
Hottest (avg)
#3 / 12
Wettest (avg)
#8 / 12
Daylight Hours
#6 / 12
Windiest (avg)
#5 / 12
Highest UV
#6 / 12
Most Humid
#9 / 12
Monthly climate breakdown
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight hours
- 12.3 h
- UV index (max)
- 8
- Typical sun hours
- 06:16 - 18:33
Rain & Snow
- Total rain
-
- Rainy days
- 4 days
- Cloud cover (avg)
- 30%
Humidity & Wind
- Humidity (avg)
- 55%
- Wind (avg)
-
- Wind (max gusts)
-
Daily climate explorer
Day 15 selected for March. Typical high 28.1°C and low 18.8°C.
Typical disruptions in March
Based on 30 years of historical data, these are the disruption patterns most likely to affect plans in March.
Heat High impact
Hot days Measures: Hot days (>=30C). Observed about 41% of days (12.7 days/month) in March. Historical risk signal only, not a day-by-day forecast.
12.7 days / month
~41% of days
Why this matters
- Expected days 12.7 days / month
- Probability ~41% of days
- Intensity Up to ~38°C (P95)
Hot days are possible on ~13 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat High impact
Hot feels-like days Measures: Hot feels-like days (>=32C). Observed about 25% of days (7.6 days/month) in March. Historical risk signal only, not a day-by-day forecast.
7.6 days / month
~25% of days
Why this matters
- Expected days 7.6 days / month
- Probability ~25% of days
- Intensity Up to ~39°C (P95)
Feels-like heat >=32C is possible on ~8 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat High impact
Very hot feels-like Measures: Very hot feels-like days (>=35C). Observed about 10% of days (3.0 days/month) in March. Historical risk signal only, not a day-by-day forecast.
3.0 days / month
~10% of days
Why this matters
- Expected days 3.0 days / month
- Probability ~10% of days
- Intensity Up to ~40°C (P95)
Very hot feels-like conditions are possible on ~3 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat High impact
Very hot days Measures: Very hot days (>=35C). Observed about 8% of days (2.5 days/month) in March. Historical risk signal only, not a day-by-day forecast.
2.5 days / month
~8% of days
Why this matters
- Expected days 2.5 days / month
- Probability ~8% of days
- Intensity Up to ~40°C (P95)
Very hot days are possible on ~3 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Rain High impact
Rain disruption Measures: Likely rain disruption days. Observed about 4% of days (1.1 days/month) in March. Historical risk signal only, not a day-by-day forecast.
1.1 days / month
~4% of days
Why this matters
- Expected days 1.1 days / month
- Probability ~4% of days
- Intensity Up to ~38mm (P95)
Rain disruption risk appears on ~1 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 3% of days (1.1 days/month) in March. Historical risk signal only, not a day-by-day forecast.
1.1 days / month
~3% of days
Why this matters
- Expected days 1.1 days / month
- Probability ~3% of days
- Intensity Up to ~40mm (P95)
Washout conditions are possible on ~1 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Show all disruptions (21 more)
Wind High impact
Strong gusts Measures: Strong gust days (>=60 km/h). Observed about 3% of days (1.0 days/month) in March. Historical risk signal only, not a day-by-day forecast.
1.0 days / month
~3% of days
Why this matters
- Expected days 1.0 days / month
- Probability ~3% of days
- Intensity Up to ~73km/h (P95)
Strong gusts are possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Rain High impact
Heavy rain days Measures: Heavy rain days (>=10mm). Observed about 2% of days (0.7 days/month) in March. Historical risk signal only, not a day-by-day forecast.
0.7 days / month
~2% of days
Why this matters
- Expected days 0.7 days / month
- Probability ~2% of days
- Intensity Up to ~53mm (P95)
Heavy rain is possible on ~1 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind High impact
Stormy conditions Measures: Storm-impact proxy days. Observed about 1% of days (0.3 days/month) in March. Historical risk signal only, not a day-by-day forecast.
0.3 days / month
~1% of days
Why this matters
- Expected days 0.3 days / month
- Probability ~1% of days
- Intensity Up to ~72km/h (P95)
Stormy conditions are possible on ~0 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 (0.2 days/month) in March. Historical risk signal only, not a day-by-day forecast.
0.2 days / month
~1% of days
Why this matters
- Expected days 0.2 days / month
- Probability ~1% of days
- Intensity Up to ~61mm (P95)
Very heavy rain is possible on ~0 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Washout run Measures: Multi-day washout runs. Observed about 0.2 days/month in March. Historical risk signal only, not a day-by-day forecast.
0.2 days / month
Probability unavailable
Why this matters
- Expected days 0.2 days / month
- Probability —
- Intensity Up to ~28mm (P95)
Multi-day washout runs are possible on ~0 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Heat Moderate
Heatwave run Measures: Heatwave runs (>=3 hot days). Observed about 1.9 days/month in March. Historical risk signal only, not a day-by-day forecast.
1.9 days / month
Probability unavailable
Why this matters
- Expected days 1.9 days / month
- Probability —
- Intensity Up to ~39°C (P95)
Heatwave runs are possible on ~2 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat Moderate
Feels-like heatwave Measures: Feels-like heatwave runs (>=3 days). Observed about 1.1 days/month in March. Historical risk signal only, not a day-by-day forecast.
1.1 days / month
Probability unavailable
Why this matters
- Expected days 1.1 days / month
- Probability —
- Intensity Up to ~39°C (P95)
Feels-like heatwave runs are possible on ~1 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Wind Minor
Gusty days Measures: Gusty days (>=40 km/h). Observed about 76% of days (23.5 days/month) in March. Historical risk signal only, not a day-by-day forecast.
23.5 days / month
~76% of days
Why this matters
- Expected days 23.5 days / month
- Probability ~76% of days
- Intensity Up to ~59km/h (P95)
Gusty conditions are possible on ~23 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Cloud Minor
Cloudy days Measures: Cloudy days (cloud cover >=60%). Observed about 20% of days (6.1 days/month) in March. Historical risk signal only, not a day-by-day forecast.
6.1 days / month
~20% of days
Why this matters
- Expected days 6.1 days / month
- Probability ~20% of days
- Intensity Up to ~99% (P95)
Cloudy skies are possible on ~6 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Wet days Measures: Wet days (>=0.1mm). Observed about 19% of days (5.7 days/month) in March. Historical risk signal only, not a day-by-day forecast.
5.7 days / month
~19% of days
Why this matters
- Expected days 5.7 days / month
- Probability ~19% of days
- Intensity Up to ~20mm (P95)
Measurable rain is possible on ~6 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Rainy hours Measures: Rain-hours signal (>=3h rain). Observed about 13% of days (3.9 days/month) in March. Historical risk signal only, not a day-by-day forecast.
3.9 days / month
~13% of days
Why this matters
- Expected days 3.9 days / month
- Probability ~13% of days
- Intensity Up to ~18h (P95)
Several rainy hours are possible on ~4 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Cloud Minor
Mostly cloudy days Measures: Mostly cloudy days (cloud cover >=80%). Observed about 11% of days (3.3 days/month) in March. Historical risk signal only, not a day-by-day forecast.
3.3 days / month
~11% of days
Why this matters
- Expected days 3.3 days / month
- Probability ~11% of days
- Intensity Up to ~100% (P95)
Mostly cloudy skies are possible on ~3 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Heat Minor
Warm nights Measures: Warm nights (min >=22C). Observed about 9% of days (2.8 days/month) in March. Historical risk signal only, not a day-by-day forecast.
2.8 days / month
~9% of days
Why this matters
- Expected days 2.8 days / month
- Probability ~9% of days
- Intensity Up to ~26°C (P95)
Warm nights are possible on ~3 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Wet most of day Measures: Wet-most-of-day signal (>=6h rain). Observed about 7% of days (2.3 days/month) in March. Historical risk signal only, not a day-by-day forecast.
2.3 days / month
~7% of days
Why this matters
- Expected days 2.3 days / month
- Probability ~7% of days
- Intensity Up to ~19h (P95)
Wet-most-of-day conditions are possible on ~2 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Humidity Minor
Humid days Measures: Humid days (dew point >=18C). Observed about 7% of days (2.1 days/month) in March. Historical risk signal only, not a day-by-day forecast.
2.1 days / month
~7% of days
Why this matters
- Expected days 2.1 days / month
- Probability ~7% of days
- Intensity Up to ~20°C (P95)
Humid conditions are possible on ~2 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 6% of days (1.9 days/month) in March. Historical risk signal only, not a day-by-day forecast.
1.9 days / month
~6% of days
Why this matters
- Expected days 1.9 days / month
- Probability ~6% of days
- Intensity Up to ~31km/h (P95)
Breezy conditions are possible on ~2 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Cloud Minor
Overcast days Measures: Overcast days (cloud cover >=95%). Observed about 4% of days (1.2 days/month) in March. Historical risk signal only, not a day-by-day forecast.
1.2 days / month
~4% of days
Why this matters
- Expected days 1.2 days / month
- Probability ~4% of days
- Intensity Up to ~100% (P95)
Overcast skies are possible on ~1 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 4% of days (1.2 days/month) in March. Historical risk signal only, not a day-by-day forecast.
1.2 days / month
~4% of days
Why this matters
- Expected days 1.2 days / month
- Probability ~4% of days
- Intensity Up to ~86% (P95)
High humidity is possible on ~1 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Humidity Minor
Convective risk Measures: Convective storm risk proxy. Observed about 1% of days (0.5 days/month) in March. Historical risk signal only, not a day-by-day forecast.
0.5 days / month
~1% of days
Why this matters
- Expected days 0.5 days / month
- Probability ~1% of days
- Intensity Up to ~21°C (P95)
Convective risk signal appears on ~0 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Heat Minor
Hot nights Measures: Hot nights (min >=25C). Observed about 1% of days (0.4 days/month) in March. Historical risk signal only, not a day-by-day forecast.
0.4 days / month
~1% of days
Why this matters
- Expected days 0.4 days / month
- Probability ~1% of days
- Intensity Up to ~27°C (P95)
Hot nights are possible on ~0 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat Minor
Heat stress risk Measures: High heat stress days. Observed about 1% of days (0.2 days/month) in March. Historical risk signal only, not a day-by-day forecast.
0.2 days / month
~1% of days
Why this matters
- Expected days 0.2 days / month
- Probability ~1% of days
- Intensity Up to ~39°C (P95)
Heat stress is possible on ~0 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Frequently asked questions
Is March a good time to visit Perth?
Typical March days in Perth reach highs of 29°C (84°F) with nights around 18°C (64°F). It usually feels hot by day and mild after dark. Overall, March sits in the middle of the Perth climate range.
What are temperatures like in March?
Daytime temperatures in March typically peak near 29°C (84°F), while nights drop to around 18°C (64°F). Expect hot afternoons and mild evenings.
How much does it rain in March?
Rainfall in March averages 23 mm (0.91 in) across roughly 4 days. Overall it is a mostly dry time of year, so showers are usually brief rather than all-day downpours.
How many hours of daylight are there in March?
You can expect about 12 hours of daylight in March. Sunrise is typically around 06:16 and sunset near 18:33. Daylight is fairly typical, with enough time for sightseeing.
How strong is the sun in March?
UV levels frequently reach very high levels (around 8), so strong sun protection is essential, especially around midday.
Is it windy in March?
In March, average wind speeds are around 18 km/h (11 mph), with gusts on the windiest days reaching about 54 km/h (34 mph). On the ground, it is it can feel quite windy at times, particularly when weather systems move through.