Avg High
São Paulo in April
Avg Low
Rain
Daylight
12h
What to expect
April in São Paulo is mid-autumn, a shoulder-season window, so you can get a bit of variety across the month. The month is warm and inviting for long walks, with a noticeable cool-down after sunset. The daylight window is balanced for full days without endless late evenings. Most days feel close to what the averages suggest, with straightforward pacing.
April in context
How it compares to the rest of the year in São Paulo.
Hottest (avg)
#8 / 12
Wettest (avg)
#8 / 12
Daylight Hours
#8 / 12
Windiest (avg)
#9 / 12
Highest UV
#8 / 12
Most Humid
#5 / 12
Monthly climate breakdown
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight hours
- 11.5 h
- UV index (max)
- 8
- Typical sun hours
- 06:19 - 17:52
Rain & Snow
- Total rain
-
- Rainy days
- 14 days
- Cloud cover (avg)
- 64%
Humidity & Wind
- Humidity (avg)
- 83%
- Wind (avg)
-
- Wind (max gusts)
-
Daily climate explorer
Day 15 selected for April. Typical high 25.3°C and low 17.1°C.
Typical disruptions in April
Based on 30 years of historical data, these are the disruption patterns most likely to affect plans in April.
Rain High impact
Washout risk Measures: Washout day risk. Observed about 11% of days (3.3 days/month) in April. 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 ~24mm (P95)
Washout conditions are possible on ~3 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain Moderate
Rain disruption Measures: Likely rain disruption days. Observed about 12% of days (3.5 days/month) in April. Historical risk signal only, not a day-by-day forecast.
3.5 days / month
~12% of days
Why this matters
- Expected days 3.5 days / month
- Probability ~12% of days
- Intensity Up to ~24mm (P95)
Rain disruption risk appears on ~4 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Visibility Moderate
Fog-likely signal Measures: Fog-likely visibility proxy. Observed about 5% of days (1.6 days/month) in April. Historical risk signal only, not a day-by-day forecast.
1.6 days / month
~5% of days
Why this matters
- Expected days 1.6 days / month
- Probability ~5% of days
- Intensity Up to ~96% (P95)
Fog-likely conditions are possible on ~2 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Heat Moderate
Hot feels-like days Measures: Hot feels-like days (>=32C). Observed about 3% of days (0.8 days/month) in April. Historical risk signal only, not a day-by-day forecast.
0.8 days / month
~3% of days
Why this matters
- Expected days 0.8 days / month
- Probability ~3% of days
- Intensity Up to ~33°C (P95)
Feels-like heat >=32C is possible on ~1 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Humidity Moderate
Muggy days Measures: Muggy days (dew point >=20C). Observed about 2% of days (0.6 days/month) in April. Historical risk signal only, not a day-by-day forecast.
0.6 days / month
~2% of days
Why this matters
- Expected days 0.6 days / month
- Probability ~2% of days
- Intensity Up to ~21°C (P95)
Muggy conditions are possible on ~1 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Show all disruptions (19 more)
Rain High impact
Washout run Measures: Multi-day washout runs. Observed about 0.5 days/month in April. Historical risk signal only, not a day-by-day forecast.
0.5 days / month
Probability unavailable
Why this matters
- Expected days 0.5 days / month
- Probability —
- Intensity Up to ~24mm (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.
Wind High impact
Stormy conditions Measures: Storm-impact proxy days. Observed about 1% of days (0.3 days/month) in April. 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 ~69km/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.
Wind High impact
Strong gusts Measures: Strong gust days (>=60 km/h). Observed about 1% of days (0.2 days/month) in April. 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 ~73km/h (P95)
Strong gusts 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 April. 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 ~31mm (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 Moderate
Heavy rain days Measures: Heavy rain days (>=10mm). Observed about 6% of days (1.8 days/month) in April. Historical risk signal only, not a day-by-day forecast.
1.8 days / month
~6% of days
Why this matters
- Expected days 1.8 days / month
- Probability ~6% of days
- Intensity Up to ~29mm (P95)
Heavy rain is possible on ~2 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Humidity Minor
High humidity Measures: High humidity days (RH >=80%). Observed about 79% of days (23.8 days/month) in April. Historical risk signal only, not a day-by-day forecast.
23.8 days / month
~79% of days
Why this matters
- Expected days 23.8 days / month
- Probability ~79% of days
- Intensity Up to ~91% (P95)
High humidity is possible on ~24 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Cloud Minor
Cloudy days Measures: Cloudy days (cloud cover >=60%). Observed about 60% of days (18.1 days/month) in April. Historical risk signal only, not a day-by-day forecast.
18.1 days / month
~60% of days
Why this matters
- Expected days 18.1 days / month
- Probability ~60% of days
- Intensity Up to ~99% (P95)
Cloudy skies are possible on ~18 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 56% of days (16.9 days/month) in April. Historical risk signal only, not a day-by-day forecast.
16.9 days / month
~56% of days
Why this matters
- Expected days 16.9 days / month
- Probability ~56% of days
- Intensity Up to ~15mm (P95)
Measurable rain is possible on ~17 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 42% of days (12.5 days/month) in April. Historical risk signal only, not a day-by-day forecast.
12.5 days / month
~42% of days
Why this matters
- Expected days 12.5 days / month
- Probability ~42% of days
- Intensity Up to ~19h (P95)
Several rainy hours are possible on ~13 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 32% of days (9.7 days/month) in April. Historical risk signal only, not a day-by-day forecast.
9.7 days / month
~32% of days
Why this matters
- Expected days 9.7 days / month
- Probability ~32% of days
- Intensity Up to ~20°C (P95)
Humid conditions are possible on ~10 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Cloud Minor
Mostly cloudy days Measures: Mostly cloudy days (cloud cover >=80%). Observed about 29% of days (8.8 days/month) in April. Historical risk signal only, not a day-by-day forecast.
8.8 days / month
~29% of days
Why this matters
- Expected days 8.8 days / month
- Probability ~29% of days
- Intensity Up to ~100% (P95)
Mostly cloudy skies are possible on ~9 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 25% of days (7.5 days/month) in April. Historical risk signal only, not a day-by-day forecast.
7.5 days / month
~25% of days
Why this matters
- Expected days 7.5 days / month
- Probability ~25% of days
- Intensity Up to ~20h (P95)
Wet-most-of-day conditions are possible on ~7 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind Minor
Gusty days Measures: Gusty days (>=40 km/h). Observed about 15% of days (4.5 days/month) in April. Historical risk signal only, not a day-by-day forecast.
4.5 days / month
~15% of days
Why this matters
- Expected days 4.5 days / month
- Probability ~15% of days
- Intensity Up to ~57km/h (P95)
Gusty conditions are possible on ~5 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 13% of days (3.9 days/month) in April. 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 ~100% (P95)
Overcast skies are possible on ~4 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Humidity Minor
Convective risk Measures: Convective storm risk proxy. Observed about 7% of days (2.2 days/month) in April. Historical risk signal only, not a day-by-day forecast.
2.2 days / month
~7% of days
Why this matters
- Expected days 2.2 days / month
- Probability ~7% of days
- Intensity Up to ~20°C (P95)
Convective risk signal appears on ~2 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Other Minor
Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data Measures: Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data. Observed about 5% of days (1.6 days/month) in April. Historical risk signal only, not a day-by-day forecast.
1.6 days / month
~5% of days
Why this matters
- Expected days 1.6 days / month
- Probability ~5% of days
- Intensity Up to ~96 (P95)
Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data is possible on ~2 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Heat Minor
Hot days Measures: Hot days (>=30C). Observed about 1% of days (0.4 days/month) in April. 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 ~31°C (P95)
Hot days are possible on ~0 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat Minor
Feels-like heatwave Measures: Feels-like heatwave runs (>=3 days). Observed about 0.1 days/month in April. Historical risk signal only, not a day-by-day forecast.
0.1 days / month
Probability unavailable
Why this matters
- Expected days 0.1 days / month
- Probability —
- Intensity Up to ~33°C (P95)
Feels-like heatwave runs are possible on ~0 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat Minor
Heatwave run Measures: Heatwave runs (>=3 hot days). Observed about 0.1 days/month in April. Historical risk signal only, not a day-by-day forecast.
0.1 days / month
Probability unavailable
Why this matters
- Expected days 0.1 days / month
- Probability —
- Intensity Up to ~31°C (P95)
Heatwave runs are possible on ~0 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Frequently asked questions
Is April a good time to visit São Paulo?
Typical April days in São Paulo reach highs of 25°C (77°F) with nights around 17°C (63°F). It usually feels warm by day and mild after dark. Overall, April sits in the middle of the São Paulo climate range.
What are temperatures like in April?
Daytime temperatures in April typically peak near 25°C (77°F), while nights drop to around 17°C (63°F). Expect warm afternoons and mild evenings.
How much does it rain in April?
Rainfall in April averages 60 mm (2.4 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 April?
You can expect about 12 hours of daylight in April. Sunrise is typically around 06:19 and sunset near 17:52. Daylight is fairly typical, with enough time for sightseeing.
How strong is the sun in April?
UV levels are often high (around 8). Regular sunscreen and a hat are recommended.
Is it windy in April?
In April, average wind speeds are around 10 km/h (6 mph), with gusts on the windiest days reaching about 43 km/h (27 mph). On the ground, it is it often feels breezy, especially in more exposed spots or along the coast.