Sao PauloBrazil · South America · September

September climate

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September in Sao Paulo

Brazil · South America

Warm days with cooler nights and some sun.

Excellent time to visit

Early to mid

Daytime high

78°F

Lows around 59°F

Rain

Several rainy days

Sun

9 h/day

Air feel

Comfortable

When to visit

Month-by-month fit

Best

Switch month

Temperature

Pleasant by day, brisk at night.

78°Ftypical September high

Typical range

Precipitation

Several rainy days. About 9 wet days, fewer than in most months.

30%wet-day frequency

AmountWet-day chance

Sunshine

A mix of sunshine and cloud.

8.9 hSeptember sunshine

Heat & humidity by month

Warm days with mostly dry air.

LowSeptember Heat feel

Easy airWarm airHot airHumid air

Hourly temperature pattern

In September, afternoons feel about 74° and nights feel near 59°.

ColdCoolComfortableWarmNight hours

Clear sky

Mostly cloudy skies this month.

38%September Clear sky

Clear skyCloud

Wind pattern

Calm winds are typical in September.

7 mphSeptember Light breeze

More detailIncludes daypart comfort

Typical September day

September late afternoons are around 75°F, easing to about 66°F in early evening.

Avg temp Typical range

Morning68°F

Rain14%

Cloud54%

Humid airLow

Sun intensityModerate

Best window

Midday76°F

Rain19%

Cloud57%

Humid airLow

Sun intensityStrong

Late afternoon75°F

Rain18%

Cloud58%

Humid airLow

Sun intensityModerate

Early evening66°F

Rain13%

Cloud64%

Humid airLow

Sun intensityMinimal

Data table

View month-by-month numbers

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	82	67	8.6	23	9.2	81
Feb	83	67	6.2	19	9.7	81
Mar	82	66	5.3	18	9.4	82
Apr	79	63	2.3	10	9.4	81
May	74	58	1.9	7	8.2	79
Jun	73	56	1.6	5	8.2	78
Jul	73	55	1.6	5	8.3	76
Aug	75	56	1.5	5	9.0	73
Sep	78	59	3.0	9	8.9	75
Oct	79	62	4.3	14	8.9	79
Nov	79	63	5.7	16	9.3	80
Dec	81	66	6.7	20	9.9	80

Similar climates

Want a side-by-side climate view? Compare Sao Paulo with Belo Horizonte.

Climate data notePlanning guidance, not a forecast

Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.

Sunshine: source type is not yet identified at metric level.

Local microclimates can vary by beach, neighborhood, trail, or elevation.

Last updated: Jun 1, 2026

Data & methodology

Month

High°F

Low°F

Rainin

Wet days

Sunh

Humidity%

Jan

8.6

9.2

Feb

6.2

9.7

Mar

5.3

9.4

Apr

2.3

9.4

May

1.9

8.2

Jun

1.6

8.2

Jul

1.6

8.3

Aug

1.5

9.0

Sep

3.0

8.9

Oct

4.3

8.9

Nov

5.7

9.3

Dec

6.7

9.9

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	82	67	8.6	23	9.2	81
Feb	83	67	6.2	19	9.7	81
Mar	82	66	5.3	18	9.4	82
Apr	79	63	2.3	10	9.4	81
May	74	58	1.9	7	8.2	79
Jun	73	56	1.6	5	8.2	78
Jul	73	55	1.6	5	8.3	76
Aug	75	56	1.5	5	9.0	73
Sep	78	59	3.0	9	8.9	75
Oct	79	62	4.3	14	8.9	79
Nov	79	63	5.7	16	9.3	80
Dec	81	66	6.7	20	9.9	80

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	82	67	8.6	23	9.2	81
Feb	83	67	6.2	19	9.7	81
Mar	82	66	5.3	18	9.4	82
Apr	79	63	2.3	10	9.4	81
May	74	58	1.9	7	8.2	79
Jun	73	56	1.6	5	8.2	78
Jul	73	55	1.6	5	8.3	76
Aug	75	56	1.5	5	9.0	73
Sep	78	59	3.0	9	8.9	75
Oct	79	62	4.3	14	8.9	79
Nov	79	63	5.7	16	9.3	80
Dec	81	66	6.7	20	9.9	80

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	82	67	8.6	23	9.2	81
Feb	83	67	6.2	19	9.7	81
Mar	82	66	5.3	18	9.4	82
Apr	79	63	2.3	10	9.4	81
May	74	58	1.9	7	8.2	79
Jun	73	56	1.6	5	8.2	78
Jul	73	55	1.6	5	8.3	76
Aug	75	56	1.5	5	9.0	73
Sep	78	59	3.0	9	8.9	75
Oct	79	62	4.3	14	8.9	79
Nov	79	63	5.7	16	9.3	80
Dec	81	66	6.7	20	9.9	80

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	82	67	8.6	23	9.2	81
Feb	83	67	6.2	19	9.7	81
Mar	82	66	5.3	18	9.4	82
Apr	79	63	2.3	10	9.4	81
May	74	58	1.9	7	8.2	79
Jun	73	56	1.6	5	8.2	78
Jul	73	55	1.6	5	8.3	76
Aug	75	56	1.5	5	9.0	73
Sep	78	59	3.0	9	8.9	75
Oct	79	62	4.3	14	8.9	79
Nov	79	63	5.7	16	9.3	80
Dec	81	66	6.7	20	9.9	80

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	82	67	8.6	23	9.2	81
Feb	83	67	6.2	19	9.7	81
Mar	82	66	5.3	18	9.4	82
Apr	79	63	2.3	10	9.4	81
May	74	58	1.9	7	8.2	79
Jun	73	56	1.6	5	8.2	78
Jul	73	55	1.6	5	8.3	76
Aug	75	56	1.5	5	9.0	73
Sep	78	59	3.0	9	8.9	75
Oct	79	62	4.3	14	8.9	79
Nov	79	63	5.7	16	9.3	80
Dec	81	66	6.7	20	9.9	80

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	82	67	8.6	23	9.2	81
Feb	83	67	6.2	19	9.7	81
Mar	82	66	5.3	18	9.4	82
Apr	79	63	2.3	10	9.4	81
May	74	58	1.9	7	8.2	79
Jun	73	56	1.6	5	8.2	78
Jul	73	55	1.6	5	8.3	76
Aug	75	56	1.5	5	9.0	73
Sep	78	59	3.0	9	8.9	75
Oct	79	62	4.3	14	8.9	79
Nov	79	63	5.7	16	9.3	80
Dec	81	66	6.7	20	9.9	80