Paraty weather in September

In September, Paraty sees average daytime highs of 22°C and overnight lows near 18°C, with 188 mm of rain across 16 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°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 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Paraty's 6th-clearest and 1st-windiest month. For the whole year in context, see Paraty's year-round climate.

Daytime high
22°
9th warmest
Overnight low
18°
4th coldest
Rainfall
188 mm
16 wet days
Daylight
11 h 54 min
6:57 AM – 6:49 PM
Cloud cover
65%
6th clearest
Wind
9 km/h
1st windiest
Solar energy
4.65 kWh/m²
Travel score
5.7
out of 10

Paraty 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 22°C through the month.

A typical September day in Paraty reaches about 22°C in the afternoon and slips back to 18°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 26°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12218
22218
32218
42218
52218
62218
72218
82218
92218
102218
112218
122218
132218
142218
152218
162218
172218
182218
192218
202218
212218
222218
232218
242218
252218
262218
272218
282219
292219
302219

Paraty weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 23°54327.913.33.9
Feb27° / 23°43223.712.84.1
Mar26° / 22°44626.412.24.2
Apr25° / 21°24219.211.55.4
May23° / 19°16616.210.95.9
Jun22° / 18°11611.810.66.5
Jul22° / 17°11310.710.76.7
Aug22° / 18°10010.911.26.6
Sep22° / 18°1881611.95.7
Oct23° / 19°2372012.55.0
Nov24° / 20°34523.413.14.6
Dec25° / 22°44226.113.44.2

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 13% of September, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15248
25149
35149
44951
54951
64852
74753
84654
94555
104456
114357
124357
134159
144159
154060
164060
173961
183862
193763
203664
213565
223565
233466
243367
253268
263268
273169
283070
293070
303070

Chance of precipitation in September

Any precipitation

Paraty gets around 188 mm of rain over 16 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 52% and peaks near 63% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
140
241
341
442
543
643
744
845
946
1047
1147
1248
1349
1450
1550
1652
1753
1854
1955
2057
2158
2259
2360
2461
2561
2662
2763
2863
2963
3063

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 41% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
131550320
231549330
331548340
421547350
521546360
621546370
721545371
821545381
921544381
1021444391
1121444401
1221344401
1321343411
1421343411
1521242421
1621242422
1721241432
1821240432
1931240432
2031239432
2131239433
2231338443
2331337443
2431337444
2531336444
2631335454
2731335455
2831334455
2931334455
3031334456

Wind in September

Winds average 9 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 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 42 minutes over September. Sunrise moves from 7:13 AM to 6:42 AM, and sunset from 6:44 PM to 6:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:136:44
211.57:126:45
311.67:116:45
411.67:106:45
511.67:096:46
611.67:086:46
711.77:076:46
811.77:066:47
911.77:056:47
1011.77:036:47
1111.87:026:48
1211.87:016:48
1311.87:006:48
1411.86:596:49
1511.86:586:49
1611.96:576:49
1711.96:566:50
1811.96:556:50
1911.96:546:50
2012.06:536:50
2112.06:526:51
2212.06:516:51
2312.06:506:51
2412.16:496:52
2512.16:486:52
2612.16:476:52
2712.16:466:53
2812.16:456:53
2912.26:436:54
3012.26:426:54

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.65 kWh/m².

For context, solar energy here swings from a low near 3.39 kWh/m² to a high of 5.86 kWh/m² in December across the year — September's 4.65 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in September

Hazard calendar for Paraty

In seasonPeak

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

Paraty's rainy season runs November–March, 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 Paraty?

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

5.7
Sightseeing
5th-best month of the year
4.1
Beach & pool
6th-best month of the year

September is a reasonable time to visit Paraty for sightseeing.

What to pack for Paraty in September

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

In September, Paraty sees daytime highs around 22°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 16 days see rain.

rain gearlight clothessun protection

Sea temperature near Paraty in September

The nearest coast averages about 22°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 14 km away) is warmest in February at about 27°C and coldest in August near 21°C.

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

20°22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr26Warm
May24Warm
Jun23Refreshing
Jul22Refreshing
Aug21Refreshing
Sep22Refreshing
Oct23Refreshing
Nov23Refreshing
Dec25Warm

UV index in Paraty in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Paraty peaks around January 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 21UV 14Jul 11UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Paraty in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Paraty is worst in September — around 18 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (March, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1517 µg/m³Mar 149 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb9Good
Mar9Good
Apr10Good
May12Good
Jun13Moderate
Jul13Moderate
Aug14Moderate
Sep18Moderate
Oct12Moderate
Nov10Good
Dec9Good
Location & terrain

Where is Paraty?

Paraty sits at 23.2°S, 44.7°W, 8 m above sea level, in Brazil. The nearest listed city is Cunha, 30 km away.

Topography around Paraty

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

Within 3 km, the terrain around Paraty has significant variations in elevation — a maximum elevation change of 305 m around an average of 32 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,798 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,049 m.

The land around Paraty is covered by trees (46%) and water (41%) within 3 km, trees (68%) and water (28%) within 16 km, and trees (38%), water (38%) and grassland (22%) within 80 km.

3 km
305 m
16 km
1,798 m
80 km
2,049 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
September weather nearby: Cunha 30 km · Ubatuba 44 km · Angra dos Reis 47 km · Guaratinguetá 66 km · Aparecida 67 km · Cachoeira Paulista 69 km · Lorena 69 km · Potim 69 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 Paraty (-23.2178°, -44.7131°, elevation 8 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).