João Pessoa weather in September

In September, João Pessoa sees average daytime highs of 27°C and overnight lows near 24°C, with 37 mm of rain across 13.4 wet days and about 12 hours of daylight. It is the 10th-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 65% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is João Pessoa's 1st-clearest and 2nd-windiest month. For the whole year in context, see João Pessoa's year-round climate.

Daytime high
27°
10th warmest
Overnight low
24°
3rd coldest
Rainfall
37 mm
13.4 wet days
Daylight
12 hours
5:15 AM – 5:13 PM
Cloud cover
37%
1st clearest
Wind
24 km/h
2nd windiest
Solar energy
5.96 kWh/m²
Travel score
6.4
out of 10

João Pessoa is human settlement in Brazil.

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

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 João Pessoa reaches about 27°C in the afternoon and slips back to 24°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 27°C. Set against its neighbours, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12624
22624
32624
42624
52624
62624
72624
82624
92624
102624
112624
122624
132624
142624
152624
162724
172724
182724
192724
202724
212724
222724
232724
242724
252724
262724
272724
282724
292724
302724

João Pessoa weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°561512.45.7
Feb28° / 26°7315.612.25.0
Mar28° / 26°10419.3124.8
Apr28° / 26°14822.511.84.4
May28° / 25°16022.311.74.8
Jun27° / 24°16423.211.64.7
Jul26° / 24°14924.211.64.9
Aug26° / 24°6919.111.85.6
Sep27° / 24°3713.4126.4
Oct27° / 25°239.512.26.9
Nov28° / 25°19812.36.9
Dec28° / 25°299.812.46.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 65% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 27% of September, with mostly cloudy or overcast conditions the remaining 8%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
19010
28911
38911
48911
59010
69010
79010
89010
99010
10919
11919
12919
13928
14928
15928
16946
17946
18946
19946
20946
21955
22955
23955
24946
25946
26946
27946
28946
29928
30928

Chance of precipitation in September

Any precipitation

João Pessoa gets around 37 mm of rain over 13.4 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 44% and peaks near 54% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
154
253
353
453
553
653
753
852
952
1051
1151
1250
1349
1448
1547
1646
1745
1844
1942
2041
2139
2238
2336
2435
2534
2633
2732
2831
2931
3030

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
104357
204357
304357
404357
504357
604357
704357
804357
904357
1004258
1104258
1204258
1304258
1404258
1514257
1614257
1714257
1814257
1914257
2014257
2114158
2204159
2304159
2404159
2504060
2604060
2703961
2803862
2903763
3003664

Wind in September

Winds average 24 km/h in September.

Across September, daily wind ranges from about 23 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
124breezy
224breezy
324breezy
424breezy
524breezy
624breezy
724breezy
824breezy
924breezy
1024breezy
1124breezy
1224breezy
1324breezy
1424breezy
1524breezy
1624breezy
1724breezy
1823breezy
1923breezy
2023breezy
2123breezy
2223breezy
2323breezy
2423breezy
2523breezy
2623breezy
2723breezy
2823breezy
2923breezy
3023breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 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 12 minutes over September. Sunrise moves from 5:23 AM to 5:07 AM, and sunset from 5:15 PM to 5:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:235:15
211.95:235:15
311.95:225:15
411.95:225:15
511.95:215:14
611.95:215:14
711.95:205:14
811.95:195:14
911.95:195:14
1011.95:185:14
1111.95:185:13
1211.95:175:13
1311.95:175:13
1411.95:165:13
1512.05:165:13
1612.05:155:13
1712.05:145:12
1812.05:145:12
1912.05:135:12
2012.05:135:12
2112.05:125:12
2212.05:125:12
2312.05:115:11
2412.05:105:11
2512.05:105:11
2612.05:095:11
2712.05:095:11
2812.05:085:11
2912.05:085:11
3012.15:075:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.96 kWh/m².

For context, solar energy here swings from a low near 4.43 kWh/m² to a high of 6.42 kWh/m² in November across the year — September's 5.96 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
166.0Bright
176.0Bright
186.0Intense
196.0Intense
206.0Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
Planning a trip in September

Hazard calendar for João Pessoa

In seasonPeak

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

João Pessoa's rainy season runs March–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 João Pessoa?

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

6.4
Sightseeing
4th-best month of the year
6.3
Beach & pool
4th-best month of the year

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

What to pack for João Pessoa in September

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

In September, João Pessoa sees daytime highs around 27°C and nights near 24°C. Worth packing: light clothes, rain gear, sun protection and a windbreaker. About 13 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near João Pessoa 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 26 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.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul27Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov27Warm
Dec28Warm

UV index in João Pessoa 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 João Pessoa peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 11UV 15Jul 15UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is João Pessoa?

João Pessoa sits at 7.1°S, 34.9°W, 45 m above sea level, in Brazil. The nearest listed city is Bayeux, 8.0 km away.

Topography around João Pessoa

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

Within 3 km, the terrain around João Pessoa has only modest variations in elevation — a maximum elevation change of 81 m around an average of 26 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 125 m; within 80 km, large variations in elevation — a maximum elevation change of 652 m.

The land around João Pessoa is covered by artificial surfaces (62%) and trees (21%) within 3 km, water (35%) within 16 km, and grassland (40%) and water (36%) within 80 km.

3 km
81 m
16 km
125 m
80 km
652 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves
September weather nearby: Bayeux 8.0 km · Santa Rita 13 km · Cabedelo 15 km · Conde 17 km · Cruz do Espírito Santo 25 km · Alhandra 36 km · Pitimbu 40 km · Sapé 41 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
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 João Pessoa (-7.115°, -34.8631°, elevation 45 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).