Campos dos Goytacazes weather in September

In September, Campos dos Goytacazes sees average daytime highs of 28°C and overnight lows near 20°C, with 47 mm of rain across 7.8 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 28°C through the month. The sky is clear or mostly clear about 37% of the time in September, and the air most often feels muggy.

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 Campos dos Goytacazes's 6th-clearest and 1st-windiest month. For the whole year in context, see Campos dos Goytacazes's year-round climate.

Daytime high
28°
8th warmest
Overnight low
20°
5th coldest
Rainfall
47 mm
7.8 wet days
Daylight
11 h 54 min
6:43 AM – 6:36 PM
Cloud cover
55%
6th clearest
Wind
14 km/h
1st windiest
Solar energy
5.02 kWh/m²
Travel score
6.2
out of 10

Campos dos Goytacazes 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 28°C through the month.

A typical September day in Campos dos Goytacazes reaches about 28°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 33°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12819
22819
32819
42819
52819
62819
72819
82819
92819
102819
112820
122820
132820
142820
152820
162820
172820
182820
192820
202820
212820
222820
232820
242820
252820
262820
272820
282820
292820
302820

How September really feels in Campos dos Goytacazes

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
0
heat index over the day's high
Days feeling ≤ C
0
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.

Campos dos Goytacazes 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°15513.613.23.7
Feb33° / 24°8010.212.73.6
Mar32° / 23°14315.712.23.6
Apr30° / 22°8212.411.54.7
May28° / 20°478.9116.3
Jun28° / 18°20510.77.3
Jul27° / 18°225.310.87.4
Aug28° / 18°214.811.37.3
Sep28° / 20°477.811.96.2
Oct29° / 21°8210.112.55.4
Nov29° / 22°16916.1134.4
Dec31° / 23°19617.913.33.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26238
36238
46238
56139
66040
76040
85842
95842
105743
115644
125545
135446
145248
155149
165050
174951
184852
194654
204555
214456
224357
234357
244258
254258
264159
274159
284060
294060
304060

Chance of precipitation in September

Any precipitation

Campos dos Goytacazes gets around 47 mm of rain over 7.8 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 25% and peaks near 31% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
116
217
317
418
519
620
720
821
922
1023
1124
1224
1325
1426
1526
1627
1727
1828
1928
2029
2129
2230
2330
2430
2531
2631
2731
2831
2931
3031

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 48% of days. Sticky, muggy-or-worse air turns up on roughly 52% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
131537441
231537441
331537441
431536441
531536451
631436451
731436451
831436461
931336471
1031335471
1131235481
1231235492
1331135492
1431134502
1531134502
1631034512
1731033513
1831033513
1931033513
203932524
213932524
223932515
233931516
243931507
254930507
264930508
274930499
2848294910
2948294910
3048294811

Wind in September

Winds average 14 km/h in September, the windiest month of the year.

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.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

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 6:29 AM, and sunset from 6:32 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:586:32
211.66:576:32
311.66:566:32
411.66:556:33
511.66:546:33
611.76:536:33
711.76:526:34
811.76:516:34
911.76:506:34
1011.76:496:34
1111.86:486:35
1211.86:476:35
1311.86:466:35
1411.86:456:35
1511.96:446:36
1611.96:436:36
1711.96:426:36
1811.96:416:36
1911.96:406:37
2012.06:396:37
2112.06:386:37
2212.06:376:38
2312.06:366:38
2412.06:356:38
2512.16:346:38
2612.16:336:39
2712.16:326:39
2812.16:316:39
2912.26:306:40
3012.26:296:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.02 kWh/m².

For context, solar energy here swings from a low near 3.61 kWh/m² to a high of 6.61 kWh/m² in February across the year — September's 5.02 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.2Bright
305.2Bright
Planning a trip in September

Hazard calendar for Campos dos Goytacazes

In seasonPeak

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

Campos dos Goytacazes's rainy season runs November–January, 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 Campos dos Goytacazes?

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

6.2
Sightseeing
5th-best month of the year
7.3
Beach & pool
4th-best month of the year

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

What to pack for Campos dos Goytacazes in September

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

In September, Campos dos Goytacazes sees daytime highs around 28°C and nights near 20°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

Sea temperature near Campos dos Goytacazes 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 42 km away) is warmest in March at about 25°C and coldest in August near 22°C.

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

20°22°24°26°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb25Warm
Mar25Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug22Refreshing
Sep22Refreshing
Oct22Refreshing
Nov23Refreshing
Dec24Warm

UV index in Campos dos Goytacazes in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Campos dos Goytacazes peaks around February 9 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 9UV 14Jun 23UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep9Very high
Oct12Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Campos dos Goytacazes?

Campos dos Goytacazes sits at 21.8°S, 41.3°W, 13 m above sea level, in Brazil. The nearest listed city is São João da Barra, 31 km away.

Topography around Campos dos Goytacazes

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

Within 3 km, the terrain around Campos dos Goytacazes has only modest variations in elevation — a maximum elevation change of 17 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 400 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,716 m.

The land around Campos dos Goytacazes is covered by artificial surfaces (63%) within 3 km, grassland (62%) within 16 km, and grassland (47%) and water (33%) within 80 km.

3 km
17 m
16 km
400 m
80 km
1,716 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: São João da Barra 31 km · Quissamã 42 km · São Fidélis 45 km · São Francisco de Itabapoana 63 km · Cambuci 63 km · Conceição de Macabu 67 km · Mimoso do Sul 77 km · Itaocara 78 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 Campos dos Goytacazes (-21.7523°, -41.3304°, elevation 13 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).