Igarassu weather in September

In September, Igarassu sees average daytime highs of 27°C and overnight lows near 22°C, with 35 mm of rain across 13.5 wet days and about 12 hours of daylight. It is the 9th-warmest and 9th-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 38% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Igarassu's 1st-clearest and 2nd-windiest month. For the whole year in context, see Igarassu's year-round climate.

Daytime high: 27°; 9th warmest
Overnight low: 22°; 3rd coldest
Rainfall: 35 mm; 13.5 wet days
Daylight: 12 hours; 5:15 AM – 5:13 PM
Cloud cover: 46%; 1st clearest
Wind: 14 km/h; 2nd windiest
Solar energy: 5.52 kWh/m²
Travel score: 6.1; out of 10

Igarassu is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← August Igarassu 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 Igarassu reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°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	28	28	28	28	28	28	28	28	28	28	28
Avg low (°C)	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	23	23	23

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

How September really feels in Igarassu

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.

Igarassu weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	29° / 24°	56	17.3	12.4	4.5
Feb	30° / 24°	65	16.2	12.3	4.3
Mar	30° / 24°	82	19.9	12.1	4.1
Apr	29° / 24°	100	20.4	11.8	4.1
May	28° / 23°	102	21.5	11.6	4.5
Jun	27° / 23°	110	21.3	11.6	4.8
Jul	27° / 22°	100	21.4	11.6	5.1
Aug	27° / 22°	58	17	11.7	5.7
Sep	27° / 22°	35	13.5	12	6.1
Oct	28° / 23°	25	10.8	12.2	5.9
Nov	29° / 24°	24	10.3	12.4	5.6
Dec	29° / 24°	32	12	12.4	5.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 45% of September, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to open up 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 (%)	81	81	81	81	80	81	81	81	81	81	81	81	82	82	83	83	84	85	85	85	86	86	86	87	87	87	87	86	86	85
Cloudier (%)	19	19	19	19	20	19	19	19	19	19	19	19	18	18	17	17	16	15	15	15	14	14	14	13	13	13	13	14	14	15

	Clearer (%)	Cloudier (%)
1	81	19
2	81	19
3	81	19
4	81	19
5	80	20
6	81	19
7	81	19
8	81	19
9	81	19
10	81	19
11	81	19
12	81	19
13	82	18
14	82	18
15	83	17
16	83	17
17	84	16
18	85	15
19	85	15
20	85	15
21	86	14
22	86	14
23	86	14
24	87	13
25	87	13
26	87	13
27	87	13
28	86	14
29	86	14
30	85	15

Chance of precipitation in September

Any precipitation

Igarassu gets around 35 mm of rain over 13.5 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 45% and peaks near 55% on the wettest days. The odds ease 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 (%)	54	54	55	55	55	54	54	54	54	53	52	52	51	50	48	47	45	44	42	41	39	38	37	35	34	34	33	33	33	33

	Rain chance (%)
1	54
2	54
3	55
4	55
5	55
6	54
7	54
8	54
9	54
10	53
11	52
12	52
13	51
14	50
15	48
16	47
17	45
18	44
19	42
20	41
21	39
22	38
23	37
24	35
25	34
26	34
27	33
28	33
29	33
30	33

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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
Muggy (%)	57	57	57	57	57	57	57	57	56	56	56	55	55	54	54	53	53	52	52	51	51	50	50	49	48	48	47	46	45	45
Oppressive (%)	43	43	43	43	43	43	43	43	44	44	44	45	45	46	46	47	47	48	48	49	49	50	50	51	52	52	53	54	55	55

	Muggy (%)	Oppressive (%)
1	57	43
2	57	43
3	57	43
4	57	43
5	57	43
6	57	43
7	57	43
8	57	43
9	56	44
10	56	44
11	56	44
12	55	45
13	55	45
14	54	46
15	54	46
16	53	47
17	53	47
18	52	48
19	52	48
20	51	49
21	51	49
22	50	50
23	50	50
24	49	51
25	48	52
26	48	52
27	47	53
28	46	54
29	45	55
30	45	55

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 14 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)	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	13	13	13	13	13	13	13	13	13	13	13	13
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 5:24 AM to 5:07 AM, and sunset from 5:15 PM to 5:11 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)	11.8	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.1	12.1
Sunrise (AM)	5:24	5:23	5:23	5:22	5:22	5:21	5:21	5:20	5:19	5:19	5:18	5:18	5:17	5:16	5:16	5:15	5:15	5:14	5:13	5:13	5:12	5:12	5:11	5:11	5:10	5:09	5:09	5:08	5:08	5:07
Sunset (PM)	5:15	5:15	5:15	5:14	5:14	5:14	5:14	5:14	5:14	5:14	5:13	5:13	5:13	5:13	5:13	5:13	5:13	5:12	5:12	5:12	5:12	5:12	5:12	5:12	5:11	5:11	5:11	5:11	5:11	5:11

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.8	5:24	5:15
2	11.9	5:23	5:15
3	11.9	5:23	5:15
4	11.9	5:22	5:14
5	11.9	5:22	5:14
6	11.9	5:21	5:14
7	11.9	5:21	5:14
8	11.9	5:20	5:14
9	11.9	5:19	5:14
10	11.9	5:19	5:14
11	11.9	5:18	5:13
12	11.9	5:18	5:13
13	11.9	5:17	5:13
14	11.9	5:16	5:13
15	12.0	5:16	5:13
16	12.0	5:15	5:13
17	12.0	5:15	5:13
18	12.0	5:14	5:12
19	12.0	5:13	5:12
20	12.0	5:13	5:12
21	12.0	5:12	5:12
22	12.0	5:12	5:12
23	12.0	5:11	5:12
24	12.0	5:11	5:12
25	12.0	5:10	5:11
26	12.0	5:09	5:11
27	12.0	5:09	5:11
28	12.0	5:08	5:11
29	12.1	5:08	5:11
30	12.1	5:07	5:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.52 kWh/m².

For context, solar energy here swings from a low near 4.12 kWh/m² to a high of 6.06 kWh/m² in November across the year — September's 5.52 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)	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.5	5.5	5.5	5.5	5.6	5.6	5.6	5.6	5.7	5.7	5.7	5.7	5.8	5.8	5.8	5.8	5.8
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	5.2	Bright
2	5.2	Bright
3	5.2	Bright
4	5.3	Bright
5	5.3	Bright
6	5.3	Bright
7	5.3	Bright
8	5.3	Bright
9	5.3	Bright
10	5.4	Bright
11	5.4	Bright
12	5.4	Bright
13	5.4	Bright
14	5.5	Bright
15	5.5	Bright
16	5.5	Bright
17	5.5	Bright
18	5.6	Bright
19	5.6	Bright
20	5.6	Bright
21	5.6	Bright
22	5.7	Bright
23	5.7	Bright
24	5.7	Bright
25	5.7	Bright
26	5.8	Bright
27	5.8	Bright
28	5.8	Bright
29	5.8	Bright
30	5.8	Bright

Planning a trip in September

Hazard calendar for Igarassu

In seasonPeak

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

Igarassu's rainy season runs January–August, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Igarassu?

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

6.1

Sightseeing

1st-best month of the year

6.3

Beach & pool

4th-best month of the year

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

What to pack for Igarassu in September

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

In September, Igarassu sees daytime highs around 27°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 14 days see rain.

light clothesrain gearsun protection

Sea temperature near Igarassu in September

The nearest coast averages about 26°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 31 km away) is warmest in April at about 29°C and coldest in August near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	28	28	29	29	28	27	26	26	26	27	27	28
Comfort	Warm	Tropical	Tropical	Tropical	Tropical	Warm	Warm	Warm	Warm	Warm	Warm	Warm

	Sea temperature (°C)	Comfort
Jan	28	Warm
Feb	28	Tropical
Mar	29	Tropical
Apr	29	Tropical
May	28	Tropical
Jun	27	Warm
Jul	26	Warm
Aug	26	Warm
Sep	26	Warm
Oct	27	Warm
Nov	27	Warm
Dec	28	Warm

UV index in Igarassu in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Igarassu peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 9 (very 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)	13	14	15	13	11	10	9	10	12	12	12	12
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Very high	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	14	Extreme
Mar	15	Extreme
Apr	13	Extreme
May	11	Extreme
Jun	10	Very high
Jul	9	Very high
Aug	10	Very high
Sep	12	Extreme
Oct	12	Extreme
Nov	12	Extreme
Dec	12	Extreme

Location & terrain

Where is Igarassu?

Igarassu sits at 7.8°S, 34.9°W, 22 m above sea level, in Brazil. The nearest listed city is Itapissuma, 7.0 km away.

Topography around Igarassu

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

Within 3 km, the terrain around Igarassu has only modest variations in elevation — a maximum elevation change of 95 m around an average of 17 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 177 m; within 80 km, large variations in elevation — a maximum elevation change of 711 m.

The land around Igarassu is covered by trees (36%), grassland (27%) and artificial surfaces (20%) within 3 km, trees (40%) and water (22%) within 16 km, and grassland (38%) and water (34%) within 80 km.

3 km

95 m

trees 36%

16 km

177 m

trees 40%

80 km

711 m

grassland 38%

treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves

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

September weather nearby: Itapissuma 7.0 km · Abreu e Lima 9.0 km · Paulista 12 km · Ilha de Itamaracá 13 km · Olinda 20 km · Araçoiaba 21 km · São Lourenço da Mata 22 km · Camaragibe 22 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 Igarassu (-7.8342°, -34.9064°, elevation 22 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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	22
2	27	22
3	27	22
4	27	22
5	27	22
6	27	22
7	27	22
8	27	22
9	27	22
10	27	22
11	27	22
12	27	22
13	27	22
14	27	22
15	27	22
16	27	22
17	27	22
18	27	22
19	27	22
20	28	22
21	28	22
22	28	22
23	28	22
24	28	22
25	28	22
26	28	22
27	28	22
28	28	23
29	28	23
30	28	23

	Clearer (%)	Cloudier (%)
1	81	19
2	81	19
3	81	19
4	81	19
5	80	20
6	81	19
7	81	19
8	81	19
9	81	19
10	81	19
11	81	19
12	81	19
13	82	18
14	82	18
15	83	17
16	83	17
17	84	16
18	85	15
19	85	15
20	85	15
21	86	14
22	86	14
23	86	14
24	87	13
25	87	13
26	87	13
27	87	13
28	86	14
29	86	14
30	85	15

	Rain chance (%)
1	54
2	54
3	55
4	55
5	55
6	54
7	54
8	54
9	54
10	53
11	52
12	52
13	51
14	50
15	48
16	47
17	45
18	44
19	42
20	41
21	39
22	38
23	37
24	35
25	34
26	34
27	33
28	33
29	33
30	33

	Muggy (%)	Oppressive (%)
1	57	43
2	57	43
3	57	43
4	57	43
5	57	43
6	57	43
7	57	43
8	57	43
9	56	44
10	56	44
11	56	44
12	55	45
13	55	45
14	54	46
15	54	46
16	53	47
17	53	47
18	52	48
19	52	48
20	51	49
21	51	49
22	50	50
23	50	50
24	49	51
25	48	52
26	48	52
27	47	53
28	46	54
29	45	55
30	45	55

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

	Clearer (%)	Cloudier (%)
1	81	19
2	81	19
3	81	19
4	81	19
5	80	20
6	81	19
7	81	19
8	81	19
9	81	19
10	81	19
11	81	19
12	81	19
13	82	18
14	82	18
15	83	17
16	83	17
17	84	16
18	85	15
19	85	15
20	85	15
21	86	14
22	86	14
23	86	14
24	87	13
25	87	13
26	87	13
27	87	13
28	86	14
29	86	14
30	85	15

	Rain chance (%)
1	54
2	54
3	55
4	55
5	55
6	54
7	54
8	54
9	54
10	53
11	52
12	52
13	51
14	50
15	48
16	47
17	45
18	44
19	42
20	41
21	39
22	38
23	37
24	35
25	34
26	34
27	33
28	33
29	33
30	33

	Muggy (%)	Oppressive (%)
1	57	43
2	57	43
3	57	43
4	57	43
5	57	43
6	57	43
7	57	43
8	57	43
9	56	44
10	56	44
11	56	44
12	55	45
13	55	45
14	54	46
15	54	46
16	53	47
17	53	47
18	52	48
19	52	48
20	51	49
21	51	49
22	50	50
23	50	50
24	49	51
25	48	52
26	48	52
27	47	53
28	46	54
29	45	55
30	45	55

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

	Clearer (%)	Cloudier (%)
1	81	19
2	81	19
3	81	19
4	81	19
5	80	20
6	81	19
7	81	19
8	81	19
9	81	19
10	81	19
11	81	19
12	81	19
13	82	18
14	82	18
15	83	17
16	83	17
17	84	16
18	85	15
19	85	15
20	85	15
21	86	14
22	86	14
23	86	14
24	87	13
25	87	13
26	87	13
27	87	13
28	86	14
29	86	14
30	85	15

	Rain chance (%)
1	54
2	54
3	55
4	55
5	55
6	54
7	54
8	54
9	54
10	53
11	52
12	52
13	51
14	50
15	48
16	47
17	45
18	44
19	42
20	41
21	39
22	38
23	37
24	35
25	34
26	34
27	33
28	33
29	33
30	33

	Muggy (%)	Oppressive (%)
1	57	43
2	57	43
3	57	43
4	57	43
5	57	43
6	57	43
7	57	43
8	57	43
9	56	44
10	56	44
11	56	44
12	55	45
13	55	45
14	54	46
15	54	46
16	53	47
17	53	47
18	52	48
19	52	48
20	51	49
21	51	49
22	50	50
23	50	50
24	49	51
25	48	52
26	48	52
27	47	53
28	46	54
29	45	55
30	45	55