Barra de São Francisco weather in May

In May, Barra de São Francisco sees average daytime highs of 27°C and overnight lows near 18°C, with 26 mm of rain across 6.3 wet days and about 11.1 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 22% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 18 min at the start of May to 11 hours by month's end. Set against the rest of the year, May is Barra de São Francisco's 5th-clearest and 11th-windiest month. For the whole year in context, see Barra de São Francisco's year-round climate.

Daytime high
27°
9th warmest
Overnight low
18°
5th coldest
Rainfall
26 mm
6.3 wet days
Daylight
11 h 06 min
7:06 AM – 6:13 PM
Cloud cover
61%
5th clearest
Wind
7 km/h
11th windiest
Solar energy
3.66 kWh/m²
Travel score
6.8
out of 10

Barra de São Francisco is human settlement in Brazil.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical May day in Barra de São Francisco reaches about 27°C in the afternoon and slips back to 18°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 30°C. Set against its neighbours, May runs about 2°C cooler than April and about 1°C warmer than June.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12819
22819
32819
42819
52819
62819
72819
82819
92818
102818
112818
122818
132718
142718
152718
162718
172718
182718
192718
202718
212718
222718
232718
242718
252718
262718
272718
282718
292718
302718
312718

How May really feels in Barra de São Francisco

Once humidity and wind are folded in, May 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

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Barra de São Francisco weather by month

How May compares with the rest of the year at a glance. May 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
Jan30° / 21°13412.9134.3
Feb31° / 21°829.912.64.3
Mar30° / 21°10413.412.14.3
Apr29° / 20°6010.611.65.3
May27° / 18°266.311.16.8
Jun26° / 17°154.210.97.5
Jul26° / 16°144.7117.5
Aug27° / 16°134.611.47.4
Sep28° / 18°235.311.96.7
Oct29° / 19°771012.45.4
Nov29° / 20°17315.812.94.6
Dec30° / 21°19016.713.14.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 24% of May, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25149
35050
45050
54951
64852
74753
84753
94555
104555
114456
124357
134357
144258
154258
164357
174258
184258
194357
204258
214357
224456
234555
244555
254555
264654
274654
284753
294753
304852
314951

Chance of precipitation in May

Any precipitation

Barra de São Francisco gets around 26 mm of rain over 6.3 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 21% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
125
224
323
422
522
621
721
820
920
1020
1120
1220
1320
1421
1521
1621
1721
1821
1921
2021
2121
2221
2321
2420
2520
2619
2719
2818
2918
3017
3117

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 47% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
10531577
20632566
30633556
40734545
50835534
60836524
71937503
81938503
91939492
1011039482
1111040482
1211040471
1311141471
1411141461
1511142461
1611142451
1711142451
1811143440
1911143440
2011144440
2111145430
2211145420
2311146410
2411147400
2511248400
2611248390
2711249380
2811249370
2921350360
3021350350
3121350350

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 18 min at the start of May to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over May. Sunrise moves from 7:01 AM to 7:12 AM, and sunset from 6:21 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.37:016:21
211.37:016:20
311.37:026:19
411.37:026:19
511.37:026:18
611.37:036:18
711.27:036:17
811.27:036:17
911.27:046:16
1011.27:046:16
1111.27:046:15
1211.27:056:15
1311.27:056:15
1411.17:056:14
1511.17:066:14
1611.17:066:13
1711.17:076:13
1811.17:076:13
1911.17:076:12
2011.17:086:12
2111.17:086:12
2211.07:096:12
2311.07:096:11
2411.07:096:11
2511.07:106:11
2611.07:106:11
2711.07:106:10
2811.07:116:10
2911.07:116:10
3011.07:126:10
3111.07:126:10

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.66 kWh/m².

For context, solar energy here swings from a low near 3.38 kWh/m² to a high of 6.02 kWh/m² in February across the year — May's 3.66 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Moderate
44.0Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.7Moderate
133.7Moderate
143.7Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.6Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.4Moderate
303.4Moderate
313.4Moderate
Planning a trip in May

Hazard calendar for Barra de São Francisco

In seasonPeak

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

Barra de São Francisco's monsoon runs November–January, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Barra de São Francisco?

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

6.8
Sightseeing
4th-best month of the year
7.1
Beach & pool
5th-best month of the year

May is a reasonable time to visit Barra de São Francisco for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Barra de São Francisco in May

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

In May, Barra de São Francisco sees daytime highs around 27°C and nights near 18°C. Pack light clothes. About 6 days see rain.

light clothes

UV index in Barra de São Francisco in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Barra de São Francisco peaks around February 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 13UV 15Jun 22UV 7
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7Very high
Aug9Very high
Sep11Extreme
Oct12Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Barra de São Francisco?

Barra de São Francisco sits at 18.8°S, 40.9°W, 197 m above sea level, in Brazil. The nearest listed city is Mantena, 10 km away.

Topography around Barra de São Francisco

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

Within 3 km, the terrain around Barra de São Francisco has significant variations in elevation — a maximum elevation change of 335 m around an average of 251 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 732 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,584 m.

The land around Barra de São Francisco is covered by grassland (57%) and trees (32%) within 3 km, grassland (69%) and trees (29%) within 16 km, and grassland (67%) and trees (33%) within 80 km.

3 km
335 m
16 km
732 m
80 km
1,584 m
treesgrasslandartificial surfacesbare terrain
May weather nearby: Mantena 10 km · Ecoporanga 43 km · São Gabriel da Palha 47 km · Nova Venécia 52 km · Pancas 52 km · Resplendor 74 km · Conselheiro Pena 77 km · Rio Bananal 82 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 Barra de São Francisco (-18.755°, -40.8908°, elevation 197 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. 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).