São Francisco do Conde weather in September

In September, São Francisco do Conde sees average daytime highs of 27°C and overnight lows near 22°C, with 79 mm of rain across 16.6 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 27°C through the month. The sky is clear or mostly clear about 39% of the time in September, and the air most often feels oppressive.

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 São Francisco do Conde's 1st-clearest and 2nd-windiest month. For the whole year in context, see São Francisco do Conde's year-round climate.

Daytime high
27°
9th warmest
Overnight low
22°
3rd coldest
Rainfall
79 mm
16.6 wet days
Daylight
11 h 54 min
5:31 AM – 5:27 PM
Cloud cover
49%
1st clearest
Wind
11 km/h
2nd windiest
Solar energy
5.29 kWh/m²
Travel score
5.7
out of 10

São Francisco do Conde is 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 São Francisco do Conde 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 25°C and 28°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12622
22622
32622
42622
52622
62622
72622
82622
92622
102622
112622
122622
132622
142622
152622
162722
172722
182722
192722
202722
212722
222722
232722
242722
252722
262722
272722
282722
292722
302723

How September really feels in São Francisco do Conde

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.

São Francisco do Conde 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
Jan29° / 24°8216.812.74.6
Feb29° / 24°7316.612.44.4
Mar29° / 25°9919.912.14.2
Apr28° / 24°14523.111.74.2
May27° / 23°17222.111.44.8
Jun26° / 22°16023.411.34.7
Jul25° / 21°12722.911.35.0
Aug25° / 21°10221.311.65.2
Sep27° / 22°7916.611.95.7
Oct28° / 23°6714.212.35.8
Nov29° / 24°7213.512.65.2
Dec29° / 24°6112.212.75.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 35% of September, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
27129
37129
47129
57129
67129
77129
87129
97228
107228
117327
127327
137426
147525
157525
167624
177624
187723
197624
207723
217723
227624
237723
247624
257723
267624
277624
287624
297624
307624

Chance of precipitation in September

Any precipitation

São Francisco do Conde gets around 79 mm of rain over 16.6 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 56% and peaks near 62% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
162
262
362
462
562
662
762
862
962
1062
1161
1261
1360
1459
1558
1657
1755
1854
1953
2052
2151
2249
2349
2448
2547
2647
2746
2846
2946
3046

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
125840
225840
325741
425642
525642
625642
715643
815643
915544
1015445
1115346
1215247
1315049
1414950
1514851
1614653
1714554
1814356
1904258
2004060
2103862
2203664
2303466
2403367
2503169
2603070
2702971
2802872
2902773
3002674

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

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 5:42 AM to 5:21 AM, and sunset from 5:27 PM to 5:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:425:27
211.85:415:27
311.85:405:27
411.85:405:27
511.85:395:27
611.85:385:27
711.85:385:27
811.85:375:27
911.85:365:27
1011.95:355:27
1111.95:355:27
1211.95:345:27
1311.95:335:27
1411.95:335:27
1511.95:325:27
1611.95:315:27
1711.95:305:27
1812.05:305:27
1912.05:295:27
2012.05:285:27
2112.05:275:27
2212.05:275:27
2312.05:265:27
2412.05:255:27
2512.05:255:27
2612.15:245:27
2712.15:235:27
2812.15:225:27
2912.15:225:27
3012.15:215:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.29 kWh/m².

For context, solar energy here swings from a low near 3.75 kWh/m² to a high of 6.3 kWh/m² in January across the year — September's 5.29 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.2Bright
125.2Bright
135.2Bright
145.3Bright
155.3Bright
165.3Bright
175.4Bright
185.4Bright
195.4Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.7Bright
305.7Bright
Planning a trip in September

Is September a good time to visit São Francisco do Conde?

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

5.7
Sightseeing
2nd-best month of the year
5.6
Beach & pool
6th-best month of the year

September is a reasonable time to visit São Francisco do Conde for sightseeing.

What to pack for São Francisco do Conde in September

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

In September, São Francisco do Conde sees daytime highs around 27°C and nights near 22°C. Pack rain gear. Worth having: light clothes and sun protection. About 17 days see rain.

rain gearlight clothessun protection

Sea temperature near São Francisco do Conde 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 56 km away) is warmest in March at about 28°C and coldest in August near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Warm
Mar28Tropical
Apr28Tropical
May28Warm
Jun26Warm
Jul26Warm
Aug25Warm
Sep26Warm
Oct26Warm
Nov27Warm
Dec27Warm

UV index in São Francisco do Conde in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in São Francisco do Conde peaks around February 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 17UV 14Jun 23UV 8
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep11Extreme
Oct12Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is São Francisco do Conde?

São Francisco do Conde sits at 12.6°S, 38.7°W, 21 m above sea level, in Brazil. The nearest listed city is Santo Amaro, 10 km away.

Topography around São Francisco do Conde

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Francisco do Conde.

Within 3 km, the terrain around São Francisco do Conde has only modest variations in elevation — a maximum elevation change of 150 m around an average of 21 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 214 m; within 80 km, large variations in elevation — a maximum elevation change of 602 m.

The land around São Francisco do Conde is covered by water (35%) and trees (32%) within 3 km, trees (35%), grassland (34%) and water (23%) within 16 km, and grassland (41%), trees (30%) and water (24%) within 80 km.

3 km
150 m
16 km
214 m
80 km
602 m
treesshrubsgrasslandartificial surfaceswaterwetlandmangroves
September weather nearby: Santo Amaro 10 km · Madre de Deus 14 km · Candeias 15 km · São Sebastião do Passé 24 km · Amélia Rodrigues 27 km · Itaparica 29 km · Maragogipe 31 km · Cachoeira 31 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 São Francisco do Conde (-12.6275°, -38.68°, elevation 21 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).