Best time to visit São Paulo
Brazil · Americas · Subtropical climate · Southern hemisphere
May – August
May – August is the canonical best window — average daytime highs of 23 °C and 226 mm of rain across those months. The wettest month is January (242 mm) and the driest is August (40 mm).
4 months · Autumn / Winter
Good · 77/100
Warm conditions with heavy annual rainfall (1525 mm); the canonical best window is May – August.
- Recommended window
- 4 months
- Canonical best months
- Climate zone
- Subtropical
- NASA POWER normals
- Dominant season
- Winter
- Derived
- Climate score
- Good · 77/100
- Real field
- Least favourable
- 2 months
- R1–R7 classification
- Typical stay
- 4 days
- Real field
Climate year
● recommended window · fixed scales −15–40 °C · 0–800 mm · 0–31 rain days · use ← → to change month
May
Autumn · In recommended window
Favourable month (R1–R7) inside the canonical best-time window
- High / Low
- 22.8° / 13.9°C
- Mean
- 17.6°C
- Rain
- 73.0 mm
- Rain days (≥1 mm)
- 0.3
- Daylight
- 11.0 h
When to go
Go in May – August
May – August is the canonical best window — average daytime highs of 23 °C and 226 mm of rain across those months. The wettest month is January (242 mm) and the driest is August (40 mm).
Warm conditions with heavy annual rainfall (1525 mm); the canonical best window is May – August.
Read the full São Paulo destination guide- Best
- May · Jun · Jul · Aug4/12
- Good
- —0/12
- Mixed
- Mar · Apr · Sep · Oct · Nov · Dec6/12
- Avoid
- Jan · Feb2/12
Distribution across the twelve months
Why these months?
São Paulo's canonical best-time window is May – August — 4 months of the year. That window is derived from the R1–R7 classification of NASA POWER climate normals, and it is the primary signal behind the verdicts above.
Inside the window, NASA POWER climate normals for a subtropical climate in the southern hemisphere read Mild with Dry / Low precipitation — 1991–2020 monthly averages, not a forecast. Outside it, month-by- month verdicts come from the R1–R7 climate classification over the same dataset.
The other 8 months sit outside the window. Jan, Feb read as least favourable for this zone.
Signals — Best: R1–R7 favourable months · Good / Mixed: R1–R7 workable · Avoid: R1–R7 challenging · climate normals: NASA POWER 1991–2020
Read a single month
● marks a month inside the recommended window · use ← → to change month
May
Autumn · In recommended window
- Temperature
- 22.8° / 13.9°C
- Precipitation
- 73.0 mm
- Rain days (≥1 mm)
- 0.3
- Daylight
- 11.0 h
Avg high 22.8°C / avg low 13.9°C · 73.0 mm precipitation over 0.3 days with ≥1 mm rain.
Temperature, precipitation and rain days are 1991–2020 NASA POWER climate normals; daylight hours are astronomical. The verdict comes from the R1–R7 climate classification.
All twelve months
Twelve months of NASA POWER climate normals for São Paulo (1991–2020 average), side by side with the travel verdict: whether a month is Favourable, Workable or Challenging (R1–R7 classification), and whether it falls inside the canonical best-time window. Historical climate normals — not a forecast.
| Month | Season | Temperature | Precipitation | Month readout | Verdict |
|---|---|---|---|---|---|
| January | Summer | 27.3° / 19.3°C | 241.9 mm · 0.8 rain days | Avg high 27.3°C / avg low 19.3°C · 241.9 mm precipitation over 0.8 days with ≥1 mm rain. | Avoid |
| February | Summer | 27.4° / 19.2°C | 203.6 mm · 0.8 rain days | Avg high 27.4°C / avg low 19.2°C · 203.6 mm precipitation over 0.8 days with ≥1 mm rain. | Avoid |
| March | Autumn | 26.5° / 18.5°C | 178.1 mm · 0.7 rain days | Avg high 26.5°C / avg low 18.5°C · 178.1 mm precipitation over 0.7 days with ≥1 mm rain. | Mixed |
| April | Autumn | 25.2° / 16.6°C | 90.1 mm · 0.5 rain days | Avg high 25.2°C / avg low 16.6°C · 90.1 mm precipitation over 0.5 days with ≥1 mm rain. | Mixed |
| Mayinside the recommended window; | Autumn | 22.8° / 13.9°C | 73.0 mm · 0.3 rain days | Avg high 22.8°C / avg low 13.9°C · 73.0 mm precipitation over 0.3 days with ≥1 mm rain. | Best |
| Juneinside the recommended window; | Winter | 22.3° / 12.7°C | 57.8 mm · 0.3 rain days | Avg high 22.3°C / avg low 12.7°C · 57.8 mm precipitation over 0.3 days with ≥1 mm rain. | Best |
| Julyinside the recommended window; | Winter | 22.4° / 12.0°C | 55.9 mm · 0.3 rain days | Avg high 22.4°C / avg low 12.0°C · 55.9 mm precipitation over 0.3 days with ≥1 mm rain. | Best |
| Augustinside the recommended window; | Winter | 24.2° / 12.6°C | 39.7 mm · 0.2 rain days | Avg high 24.2°C / avg low 12.6°C · 39.7 mm precipitation over 0.2 days with ≥1 mm rain. | Best |
| September | Spring | 25.9° / 14.3°C | 128.5 mm · 0.4 rain days | Avg high 25.9°C / avg low 14.3°C · 128.5 mm precipitation over 0.4 days with ≥1 mm rain. | Mixed |
| October | Spring | 27.0° / 16.0°C | 119.7 mm · 0.6 rain days | Avg high 27.0°C / avg low 16.0°C · 119.7 mm precipitation over 0.6 days with ≥1 mm rain. | Mixed |
| November | Spring | 26.7° / 16.8°C | 146.8 mm · 0.7 rain days | Avg high 26.7°C / avg low 16.8°C · 146.8 mm precipitation over 0.7 days with ≥1 mm rain. | Mixed |
| December | Summer | 27.4° / 18.3°C | 189.8 mm · 0.8 rain days | Avg high 27.4°C / avg low 18.3°C · 189.8 mm precipitation over 0.8 days with ≥1 mm rain. | Mixed |
● marks a month inside the canonical best-time window
- Best
- Favourable month (R1–R7) inside the canonical best-time window
- Good
- Workable month (R1–R7) — a viable alternative outside the stated window
- Mixed
- Transitional month — workable with a flexible plan
- Avoid
- Challenging month (R1–R7) — least favourable climate pattern
Method: temperature and precipitation are 1991–2020 climate normals (monthly means); verdicts combine the R1–R7 climate classification with the canonical best-time window. No daily forecast, crowd level or price index is claimed.
Climate data source: NASA POWER (NASA Langley Research Center) · Climatology / Daily / Monthly point APIs · 1991–2020 · UTC+00:00 daily boundary.
Season by season
The recommended window (May – August) runs through Autumn and Winter. Below, each season is read on two axes: the NASA POWER climate normals for São Paulo's 1991–2020 record, and how much of it sits inside the canonical best-time window.
Spring
Sep · Oct · Nov
Warm · Moderate precipitation
Avg high 25.9°C / avg low 14.3°C · 128.5 mm precipitation over 0.4 days with ≥1 mm rain.
Outside the recommended window
Summer
Jan · Feb · Dec
Warm · Moderate / High precipitation
Avg high 27.3°C / avg low 19.3°C · 241.9 mm precipitation over 0.8 days with ≥1 mm rain.
Outside the recommended window
Autumn
Mar · Apr · May
Mild / Warm · Low / Moderate precipitation
Avg high 26.5°C / avg low 18.5°C · 178.1 mm precipitation over 0.7 days with ≥1 mm rain.
1 of 3 months inside the recommended window
Winter
Jun · Jul · Aug
Mild · Dry / Low precipitation
Avg high 22.3°C / avg low 12.7°C · 57.8 mm precipitation over 0.3 days with ≥1 mm rain.
3 of 3 months inside the recommended window
Temperature and precipitation are 1991–2020 NASA POWER climate normals (qualitative buckets are derived from the monthly values); the season names follow the destination's hemisphere, and daylight hours are astronomical.
Trip shape
- Typical stay
- 4 days
- Daily budget
- 85 BRL
- Currency
- BRL R$
- Time zone
- America/Sao_Paulo
- Airport
- GRU · São Paulo
- Travel style
- Foodie
- Region
- Americas
Frequently asked questions
What are the best months to visit São Paulo?
The best months to visit São Paulo are May – August, based on the R1–R7 classification of NASA POWER 1991–2020 climate normals. May – August is the canonical best window — average daytime highs of 23 °C and 226 mm of rain across those months. The wettest month is January (242 mm) and the driest is August (40 mm).
What is the weather like in São Paulo?
São Paulo is rated Good for climate, with a score of 77/100. Warm conditions with heavy annual rainfall (1525 mm); the canonical best window is May – August.
Which months should I avoid in São Paulo?
On the R1–R7 classification of NASA POWER climate normals, January, February are the least favourable months in São Paulo. This is a historical climate pattern rather than a forecast; the recommended window remains May – August.
How many days do you need in São Paulo?
We recommend 4 days in São Paulo, ideally placed inside the recommended window of May – August.
Plan a May trip to São Paulo
The recommended window is May – August. The planner opens with São Paulo prefilled — set your dates inside that window and build the route around it.
Plan around this window
Climate data source: NASA POWER (NASA Langley Research Center) · Climatology / Daily / Monthly point APIs · 1991–2020 · accessed 2026-09-13 · dataset nasa-power-canonical-production-v1.2-wave2