Parnamirim weather in September

In September, Parnamirim sees average daytime highs of 28°C and overnight lows near 23°C, with 18 mm of rain across 7.2 wet days and about 12 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 64% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Parnamirim's 1st-clearest and 1st-windiest month. For the whole year in context, see Parnamirim's year-round climate.

Daytime high: 28°; 9th warmest
Overnight low: 23°; 3rd coldest
Rainfall: 18 mm; 7.2 wet days
Daylight: 12 hours; 5:16 AM – 5:14 PM
Cloud cover: 37%; 1st clearest
Wind: 21 km/h; 1st windiest
Solar energy: 5.99 kWh/m²
Travel score: 6.8; out of 10

← August Parnamirim 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 28°C through the month.

A typical September day in Parnamirim reaches about 28°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, September runs on par with August and on par with 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)	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	29
Avg low (°C)	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23

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

How September really feels in Parnamirim

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.

Parnamirim weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 25°	55	15.4	12.3	4.7
Feb	30° / 25°	73	16.2	12.2	4.3
Mar	30° / 25°	110	20.9	12	4.0
Apr	29° / 25°	136	22	11.9	3.9
May	29° / 24°	104	19.3	11.7	4.6
Jun	28° / 23°	106	18.6	11.7	5.2
Jul	27° / 23°	87	17.3	11.7	5.7
Aug	27° / 22°	32	11	11.8	6.6
Sep	28° / 23°	18	7.2	12	6.8
Oct	29° / 24°	13	5.2	12.1	6.5
Nov	29° / 24°	14	5.2	12.3	6.2
Dec	29° / 25°	25	9.6	12.3	5.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 26% of September, with mostly cloudy or overcast conditions the remaining 9%.

	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 (%)	89	89	89	89	89	89	89	89	89	89	90	91	91	91	91	91	92	92	92	92	92	92	92	92	93	93	92	92	92	92
Cloudier (%)	11	11	11	11	11	11	11	11	11	11	10	9	9	9	9	9	8	8	8	8	8	8	8	8	7	7	8	8	8	8

	Clearer (%)	Cloudier (%)
1	89	11
2	89	11
3	89	11
4	89	11
5	89	11
6	89	11
7	89	11
8	89	11
9	89	11
10	89	11
11	90	10
12	91	9
13	91	9
14	91	9
15	91	9
16	91	9
17	92	8
18	92	8
19	92	8
20	92	8
21	92	8
22	92	8
23	92	8
24	92	8
25	93	7
26	93	7
27	92	8
28	92	8
29	92	8
30	92	8

Chance of precipitation in September

Any precipitation

Parnamirim gets around 18 mm of rain over 7.2 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 24% and peaks near 30% 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 (%)	30	30	29	29	29	29	28	28	28	28	28	27	27	26	25	25	24	23	22	22	21	20	19	19	18	17	17	17	17	16

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

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 (%)	55	55	56	56	56	56	56	56	56	56	56	55	55	54	54	54	53	53	53	52	52	52	52	52	51	51	49	48	48	47
Oppressive (%)	45	45	44	44	44	44	44	44	44	44	44	45	45	46	46	46	47	47	47	48	48	48	48	48	49	49	51	52	52	53

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

Wind in September

Winds average 21 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 20 km/h on the calmest days to 21 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)	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	20	20
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 5:24 AM to 5:09 AM, and sunset from 5:17 PM to 5:12 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)	11.9	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	12.0	12.0	12.0	12.0
Sunrise (AM)	5:24	5:24	5:23	5:23	5:22	5:22	5:21	5:21	5:20	5:20	5:19	5:18	5:18	5:17	5:17	5:16	5:16	5:15	5:15	5:14	5:14	5:13	5:13	5:12	5:12	5:11	5:10	5:10	5:09	5:09
Sunset (PM)	5:17	5:17	5:17	5:17	5:17	5:16	5:16	5:16	5:16	5:16	5:15	5:15	5:15	5:15	5:15	5:14	5:14	5:14	5:14	5:14	5:13	5:13	5:13	5:13	5:13	5:12	5:12	5:12	5:12	5:12

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

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.99 kWh/m².

For context, solar energy here swings from a low near 4.46 kWh/m² to a high of 6.35 kWh/m² in November across the year — September's 5.99 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)	5.7	5.7	5.7	5.8	5.8	5.8	5.8	5.8	5.8	5.9	5.9	5.9	5.9	5.9	6.0	6.0	6.0	6.0	6.0	6.0	6.1	6.1	6.1	6.1	6.2	6.2	6.2	6.2	6.2	6.2
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	5.7	Bright
2	5.7	Bright
3	5.7	Bright
4	5.8	Bright
5	5.8	Bright
6	5.8	Bright
7	5.8	Bright
8	5.8	Bright
9	5.8	Bright
10	5.9	Bright
11	5.9	Bright
12	5.9	Bright
13	5.9	Bright
14	5.9	Bright
15	6.0	Bright
16	6.0	Bright
17	6.0	Bright
18	6.0	Intense
19	6.0	Intense
20	6.0	Intense
21	6.1	Intense
22	6.1	Intense
23	6.1	Intense
24	6.1	Intense
25	6.2	Intense
26	6.2	Intense
27	6.2	Intense
28	6.2	Intense
29	6.2	Intense
30	6.2	Intense

Planning a trip in September

Hazard calendar for Parnamirim

In seasonPeak

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

Parnamirim's rainy season runs February–July, 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 Parnamirim?

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

6.8

Sightseeing

1st-best month of the year

7.7

Beach & pool

3rd-best month of the year

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

What to pack for Parnamirim in September

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

In September, Parnamirim sees daytime highs around 28°C and nights near 23°C. Pack light clothes. Worth having: sun protection and a windbreaker. About 7 days see rain.

light clothessun protectiona windbreaker

Sea temperature near Parnamirim 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 16 km away) is warmest in March 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	27	26	26	27	27	28
Comfort	Tropical	Tropical	Tropical	Tropical	Tropical	Warm	Warm	Warm	Warm	Warm	Warm	Warm

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

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

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

Location & terrain

Where is Parnamirim?

Parnamirim sits at 5.9°S, 35.3°W, 56 m above sea level, in Brazil. The nearest listed city is Macaíba, 12 km away.

Topography around Parnamirim

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

Within 3 km, the terrain around Parnamirim has only modest variations in elevation — a maximum elevation change of 48 m around an average of 48 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 117 m; within 80 km, significant variations in elevation — a maximum elevation change of 527 m.

The land around Parnamirim is covered by artificial surfaces (53%) within 3 km, grassland (28%) and shrubs (21%) within 16 km, and grassland (38%), water (31%) and shrubs (22%) within 80 km.

3 km

48 m

artificial surfaces 53%

16 km

117 m

grassland 28%

80 km

527 m

grassland 38%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves

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

September weather nearby: Macaíba 12 km · Natal 15 km · São Gonçalo do Amarante 15 km · São José de Mipibu 18 km · Monte Alegre 19 km · Nísia Floresta 20 km · Extremoz 24 km · Tibau do Sul 36 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 Parnamirim (-5.9156°, -35.2628°, elevation 56 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	28	23
2	28	23
3	28	23
4	28	23
5	28	23
6	28	23
7	28	23
8	28	23
9	28	23
10	28	23
11	28	23
12	28	23
13	28	23
14	28	23
15	28	23
16	28	23
17	28	23
18	28	23
19	28	23
20	28	23
21	28	23
22	28	23
23	28	23
24	28	23
25	28	23
26	28	23
27	28	23
28	28	23
29	28	23
30	29	23

	Clearer (%)	Cloudier (%)
1	89	11
2	89	11
3	89	11
4	89	11
5	89	11
6	89	11
7	89	11
8	89	11
9	89	11
10	89	11
11	90	10
12	91	9
13	91	9
14	91	9
15	91	9
16	91	9
17	92	8
18	92	8
19	92	8
20	92	8
21	92	8
22	92	8
23	92	8
24	92	8
25	93	7
26	93	7
27	92	8
28	92	8
29	92	8
30	92	8

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

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

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

	Clearer (%)	Cloudier (%)
1	89	11
2	89	11
3	89	11
4	89	11
5	89	11
6	89	11
7	89	11
8	89	11
9	89	11
10	89	11
11	90	10
12	91	9
13	91	9
14	91	9
15	91	9
16	91	9
17	92	8
18	92	8
19	92	8
20	92	8
21	92	8
22	92	8
23	92	8
24	92	8
25	93	7
26	93	7
27	92	8
28	92	8
29	92	8
30	92	8

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

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

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

	Clearer (%)	Cloudier (%)
1	89	11
2	89	11
3	89	11
4	89	11
5	89	11
6	89	11
7	89	11
8	89	11
9	89	11
10	89	11
11	90	10
12	91	9
13	91	9
14	91	9
15	91	9
16	91	9
17	92	8
18	92	8
19	92	8
20	92	8
21	92	8
22	92	8
23	92	8
24	92	8
25	93	7
26	93	7
27	92	8
28	92	8
29	92	8
30	92	8

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

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