Ipanema weather in September

In September, Ipanema sees average daytime highs of 27°C and overnight lows near 17°C, with 39 mm of rain across 6.2 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 27% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Ipanema's 6th-clearest and 1st-windiest month. For the whole year in context, see Ipanema's year-round climate.

Daytime high: 27°; 8th warmest
Overnight low: 17°; 5th coldest
Rainfall: 39 mm; 6.2 wet days
Daylight: 11 h 54 min; 6:45 AM – 6:38 PM
Cloud cover: 61%; 6th clearest
Wind: 7 km/h; 1st windiest
Solar energy: 4.71 kWh/m²
Travel score: 6.9; out of 10

← August Ipanema year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical September day in Ipanema reaches about 27°C in the afternoon and slips back to 17°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 31°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	28	28	28	28	28	28	28	28	28	28
Avg low (°C)	16	16	16	16	16	16	16	16	16	16	16	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	18	18	18

	Avg high (°C)	Avg low (°C)
1	27	16
2	27	16
3	27	16
4	27	16
5	27	16
6	27	16
7	27	16
8	27	16
9	27	16
10	27	16
11	27	16
12	27	17
13	27	17
14	27	17
15	27	17
16	27	17
17	27	17
18	27	17
19	27	17
20	27	17
21	28	17
22	28	17
23	28	17
24	28	17
25	28	17
26	28	17
27	28	17
28	28	18
29	28	18
30	28	18

How September really feels in Ipanema

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ipanema weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 20°	183	14	13.1	4.6
Feb	30° / 20°	101	10.1	12.7	4.7
Mar	30° / 20°	133	13.8	12.1	4.7
Apr	28° / 19°	68	9.8	11.6	5.9
May	26° / 17°	32	5.3	11.1	7.3
Jun	25° / 15°	12	2.5	10.8	8.0
Jul	25° / 15°	9	2.2	10.9	8.1
Aug	26° / 15°	11	3.3	11.3	7.8
Sep	27° / 17°	39	6.2	11.9	6.9
Oct	28° / 18°	97	10.4	12.5	5.7
Nov	28° / 19°	203	16.5	12.9	5.0
Dec	29° / 20°	265	18.4	13.2	4.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 55%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	57	56	56	56	55	54	53	53	51	50	49	48	47	45	45	45	42	41	41	39	39	38	37	36	36	36	35	34	33	32
Cloudier (%)	43	44	44	44	45	46	47	47	49	50	51	52	53	55	55	55	58	59	59	61	61	62	63	64	64	64	65	66	67	68

	Clearer (%)	Cloudier (%)
1	57	43
2	56	44
3	56	44
4	56	44
5	55	45
6	54	46
7	53	47
8	53	47
9	51	49
10	50	50
11	49	51
12	48	52
13	47	53
14	45	55
15	45	55
16	45	55
17	42	58
18	41	59
19	41	59
20	39	61
21	39	61
22	38	62
23	37	63
24	36	64
25	36	64
26	36	64
27	35	65
28	34	66
29	33	67
30	32	68

Chance of precipitation in September

Any precipitation

Ipanema gets around 39 mm of rain over 6.2 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 20% and peaks near 32% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	12	12	12	12	12	12	12	13	13	14	14	15	16	17	18	19	21	22	23	25	26	27	28	29	30	30	31	31	31	32

	Rain chance (%)
1	12
2	12
3	12
4	12
5	12
6	12
7	12
8	13
9	13
10	14
11	14
12	15
13	16
14	17
15	18
16	19
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	29
25	30
26	30
27	31
28	31
29	31
30	32

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the humid band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	14	14	13	13	13	13	13	12	12	11	11	10	9	9	8	7	7	7	7	6	6	6	6	6	6	6	6	6	6	6
Comfortable (%)	49	48	48	48	47	47	46	45	44	43	42	41	40	39	38	37	36	35	34	33	32	31	31	30	29	28	27	26	25	25
Humid (%)	35	35	36	36	36	37	38	39	40	41	42	44	45	46	47	47	48	49	49	51	51	51	51	51	51	51	51	51	52	51
Muggy (%)	2	3	3	3	3	3	4	4	4	4	5	5	6	6	7	8	8	9	10	10	11	12	12	13	14	15	16	17	17	18

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	14	49	35	2
2	14	48	35	3
3	13	48	36	3
4	13	48	36	3
5	13	47	36	3
6	13	47	37	3
7	13	46	38	4
8	12	45	39	4
9	12	44	40	4
10	11	43	41	4
11	11	42	42	5
12	10	41	44	5
13	9	40	45	6
14	9	39	46	6
15	8	38	47	7
16	7	37	47	8
17	7	36	48	8
18	7	35	49	9
19	7	34	49	10
20	6	33	51	10
21	6	32	51	11
22	6	31	51	12
23	6	31	51	12
24	6	30	51	13
25	6	29	51	14
26	6	28	51	15
27	6	27	51	16
28	6	26	51	17
29	6	25	52	17
30	6	25	51	18

Wind in September

Winds average 7 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	7	calm
2	7	calm
3	7	calm
4	7	calm
5	7	calm
6	7	calm
7	7	calm
8	7	calm
9	7	calm
10	7	calm
11	7	calm
12	7	calm
13	7	calm
14	7	calm
15	7	calm
16	7	calm
17	7	calm
18	7	calm
19	7	calm
20	7	calm
21	7	calm
22	7	calm
23	7	calm
24	7	calm
25	7	calm
26	7	calm
27	7	calm
28	7	calm
29	7	calm
30	7	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over September. Sunrise moves from 6:58 AM to 6:31 AM, and sunset from 6:35 PM to 6:41 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	11.6	11.6	11.6	11.7	11.7	11.7	11.7	11.7	11.8	11.8	11.8	11.8	11.8	11.9	11.9	11.9	11.9	11.9	11.9	12.0	12.0	12.0	12.0	12.0	12.1	12.1	12.1	12.1	12.1	12.2
Sunrise (AM)	6:58	6:58	6:57	6:56	6:55	6:54	6:53	6:52	6:51	6:50	6:49	6:48	6:47	6:46	6:45	6:45	6:44	6:43	6:42	6:41	6:40	6:39	6:38	6:37	6:36	6:35	6:34	6:33	6:32	6:31
Sunset (PM)	6:35	6:35	6:35	6:35	6:36	6:36	6:36	6:36	6:36	6:37	6:37	6:37	6:37	6:37	6:38	6:38	6:38	6:38	6:38	6:39	6:39	6:39	6:39	6:40	6:40	6:40	6:40	6:40	6:41	6:41

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.6	6:58	6:35
2	11.6	6:58	6:35
3	11.6	6:57	6:35
4	11.7	6:56	6:35
5	11.7	6:55	6:36
6	11.7	6:54	6:36
7	11.7	6:53	6:36
8	11.7	6:52	6:36
9	11.8	6:51	6:36
10	11.8	6:50	6:37
11	11.8	6:49	6:37
12	11.8	6:48	6:37
13	11.8	6:47	6:37
14	11.9	6:46	6:37
15	11.9	6:45	6:38
16	11.9	6:45	6:38
17	11.9	6:44	6:38
18	11.9	6:43	6:38
19	11.9	6:42	6:38
20	12.0	6:41	6:39
21	12.0	6:40	6:39
22	12.0	6:39	6:39
23	12.0	6:38	6:39
24	12.0	6:37	6:40
25	12.1	6:36	6:40
26	12.1	6:35	6:40
27	12.1	6:34	6:40
28	12.1	6:33	6:40
29	12.1	6:32	6:41
30	12.2	6:31	6:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.71 kWh/m².

For context, solar energy here swings from a low near 3.5 kWh/m² to a high of 5.99 kWh/m² in February across the year — September's 4.71 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	4.5	4.6	4.6	4.6	4.6	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.8
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.5	Bright
2	4.6	Bright
3	4.6	Bright
4	4.6	Bright
5	4.6	Bright
6	4.7	Bright
7	4.7	Bright
8	4.7	Bright
9	4.7	Bright
10	4.7	Bright
11	4.7	Bright
12	4.7	Bright
13	4.7	Bright
14	4.7	Bright
15	4.7	Bright
16	4.7	Bright
17	4.7	Bright
18	4.7	Bright
19	4.7	Bright
20	4.7	Bright
21	4.7	Bright
22	4.7	Bright
23	4.7	Bright
24	4.7	Bright
25	4.7	Bright
26	4.7	Bright
27	4.7	Bright
28	4.7	Bright
29	4.7	Bright
30	4.8	Bright

Planning a trip in September

Hazard calendar for Ipanema

In seasonPeak

None of Ipanema's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Ipanema's monsoon runs November–January, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Ipanema?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.9

Sightseeing

5th-best month of the year

7.2

Beach & pool

4th-best month of the year

September is a reasonable time to visit Ipanema for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Ipanema in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Ipanema sees daytime highs around 27°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Ipanema in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ipanema peaks around February 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	14	15	14	10	8	7	7	9	10	12	14	14
Level	Extreme	Extreme	Extreme	Extreme	Very high	High	High	Very high	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	15	Extreme
Mar	14	Extreme
Apr	10	Extreme
May	8	Very high
Jun	7	High
Jul	7	High
Aug	9	Very high
Sep	10	Extreme
Oct	12	Extreme
Nov	14	Extreme
Dec	14	Extreme

Location & terrain

Where is Ipanema?

Ipanema sits at 19.8°S, 41.7°W, 248 m above sea level, in Brazil. The nearest listed city is Mutum, 29 km away.

Topography around Ipanema

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ipanema.

Within 3 km, the terrain around Ipanema has significant variations in elevation — a maximum elevation change of 319 m around an average of 293 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,119 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,745 m.

The land around Ipanema is covered by grassland (55%) and trees (35%) within 3 km, grassland (54%) and trees (45%) within 16 km, and trees (52%) and grassland (47%) within 80 km.

3 km

319 m

grassland 55%

16 km

1,119 m

grassland 54%

80 km

2,745 m

trees 52%

treesgrasslandcroplandartificial surfacesbare terrain

← August Ipanema year-round climate October →Best places to visit in September

September weather nearby: Mutum 29 km · Lajinha 40 km · Caratinga 45 km · Simonésia 47 km · Inhapim 51 km · Ibatiba 53 km · Manhuaçu 61 km · Iúna 63 km

Brazil travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / N; 127 / 220 V · 60 Hz
Prices: ≈ 46% of US; price level, 2025
GDP per capita: $10,713; 2025
Happiness: 6.6 / 10; World Happiness, 2025
Safe drinking water: 89%; of population, 2024
Homicide rate: 19.3; per 100k, 2023
Road deaths: 16; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Low; EF EPI 482
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ipanema (-19.8008°, -41.7131°, elevation 248 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	27	16
2	27	16
3	27	16
4	27	16
5	27	16
6	27	16
7	27	16
8	27	16
9	27	16
10	27	16
11	27	16
12	27	17
13	27	17
14	27	17
15	27	17
16	27	17
17	27	17
18	27	17
19	27	17
20	27	17
21	28	17
22	28	17
23	28	17
24	28	17
25	28	17
26	28	17
27	28	17
28	28	18
29	28	18
30	28	18

	Clearer (%)	Cloudier (%)
1	57	43
2	56	44
3	56	44
4	56	44
5	55	45
6	54	46
7	53	47
8	53	47
9	51	49
10	50	50
11	49	51
12	48	52
13	47	53
14	45	55
15	45	55
16	45	55
17	42	58
18	41	59
19	41	59
20	39	61
21	39	61
22	38	62
23	37	63
24	36	64
25	36	64
26	36	64
27	35	65
28	34	66
29	33	67
30	32	68

	Rain chance (%)
1	12
2	12
3	12
4	12
5	12
6	12
7	12
8	13
9	13
10	14
11	14
12	15
13	16
14	17
15	18
16	19
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	29
25	30
26	30
27	31
28	31
29	31
30	32

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	14	49	35	2
2	14	48	35	3
3	13	48	36	3
4	13	48	36	3
5	13	47	36	3
6	13	47	37	3
7	13	46	38	4
8	12	45	39	4
9	12	44	40	4
10	11	43	41	4
11	11	42	42	5
12	10	41	44	5
13	9	40	45	6
14	9	39	46	6
15	8	38	47	7
16	7	37	47	8
17	7	36	48	8
18	7	35	49	9
19	7	34	49	10
20	6	33	51	10
21	6	32	51	11
22	6	31	51	12
23	6	31	51	12
24	6	30	51	13
25	6	29	51	14
26	6	28	51	15
27	6	27	51	16
28	6	26	51	17
29	6	25	52	17
30	6	25	51	18

	Avg high (°C)	Avg low (°C)
1	27	16
2	27	16
3	27	16
4	27	16
5	27	16
6	27	16
7	27	16
8	27	16
9	27	16
10	27	16
11	27	16
12	27	17
13	27	17
14	27	17
15	27	17
16	27	17
17	27	17
18	27	17
19	27	17
20	27	17
21	28	17
22	28	17
23	28	17
24	28	17
25	28	17
26	28	17
27	28	17
28	28	18
29	28	18
30	28	18

	Clearer (%)	Cloudier (%)
1	57	43
2	56	44
3	56	44
4	56	44
5	55	45
6	54	46
7	53	47
8	53	47
9	51	49
10	50	50
11	49	51
12	48	52
13	47	53
14	45	55
15	45	55
16	45	55
17	42	58
18	41	59
19	41	59
20	39	61
21	39	61
22	38	62
23	37	63
24	36	64
25	36	64
26	36	64
27	35	65
28	34	66
29	33	67
30	32	68

	Rain chance (%)
1	12
2	12
3	12
4	12
5	12
6	12
7	12
8	13
9	13
10	14
11	14
12	15
13	16
14	17
15	18
16	19
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	29
25	30
26	30
27	31
28	31
29	31
30	32

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	14	49	35	2
2	14	48	35	3
3	13	48	36	3
4	13	48	36	3
5	13	47	36	3
6	13	47	37	3
7	13	46	38	4
8	12	45	39	4
9	12	44	40	4
10	11	43	41	4
11	11	42	42	5
12	10	41	44	5
13	9	40	45	6
14	9	39	46	6
15	8	38	47	7
16	7	37	47	8
17	7	36	48	8
18	7	35	49	9
19	7	34	49	10
20	6	33	51	10
21	6	32	51	11
22	6	31	51	12
23	6	31	51	12
24	6	30	51	13
25	6	29	51	14
26	6	28	51	15
27	6	27	51	16
28	6	26	51	17
29	6	25	52	17
30	6	25	51	18

	Avg high (°C)	Avg low (°C)
1	27	16
2	27	16
3	27	16
4	27	16
5	27	16
6	27	16
7	27	16
8	27	16
9	27	16
10	27	16
11	27	16
12	27	17
13	27	17
14	27	17
15	27	17
16	27	17
17	27	17
18	27	17
19	27	17
20	27	17
21	28	17
22	28	17
23	28	17
24	28	17
25	28	17
26	28	17
27	28	17
28	28	18
29	28	18
30	28	18

	Clearer (%)	Cloudier (%)
1	57	43
2	56	44
3	56	44
4	56	44
5	55	45
6	54	46
7	53	47
8	53	47
9	51	49
10	50	50
11	49	51
12	48	52
13	47	53
14	45	55
15	45	55
16	45	55
17	42	58
18	41	59
19	41	59
20	39	61
21	39	61
22	38	62
23	37	63
24	36	64
25	36	64
26	36	64
27	35	65
28	34	66
29	33	67
30	32	68

	Rain chance (%)
1	12
2	12
3	12
4	12
5	12
6	12
7	12
8	13
9	13
10	14
11	14
12	15
13	16
14	17
15	18
16	19
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	29
25	30
26	30
27	31
28	31
29	31
30	32

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	14	49	35	2
2	14	48	35	3
3	13	48	36	3
4	13	48	36	3
5	13	47	36	3
6	13	47	37	3
7	13	46	38	4
8	12	45	39	4
9	12	44	40	4
10	11	43	41	4
11	11	42	42	5
12	10	41	44	5
13	9	40	45	6
14	9	39	46	6
15	8	38	47	7
16	7	37	47	8
17	7	36	48	8
18	7	35	49	9
19	7	34	49	10
20	6	33	51	10
21	6	32	51	11
22	6	31	51	12
23	6	31	51	12
24	6	30	51	13
25	6	29	51	14
26	6	28	51	15
27	6	27	51	16
28	6	26	51	17
29	6	25	52	17
30	6	25	51	18