São Luís de Montes Belos weather in May

In May, São Luís de Montes Belos sees average daytime highs of 30°C and overnight lows near 19°C, with 13 mm of rain across 2.4 wet days and about 11.2 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 56% of the time in May, and the air most often feels humid.

Daylight stretches from about 11 h 24 min at the start of May to 11 h 06 min by month's end. Set against the rest of the year, May is São Luís de Montes Belos's 4th-clearest and 5th-windiest month. For the whole year in context, see São Luís de Montes Belos's year-round climate.

Daytime high
30°
7th warmest
Overnight low
19°
3rd coldest
Rainfall
13 mm
2.4 wet days
Daylight
11 h 12 min
7:41 AM – 6:55 PM
Cloud cover
41%
4th clearest
Wind
8 km/h
5th windiest
Solar energy
4.86 kWh/m²
Travel score
6.2
out of 10

São Luís de Montes Belos 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 30°C through the month.

A typical May day in São Luís de Montes Belos reaches about 30°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°C. Set against its neighbours, May runs on par with April and on par with June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13019
23019
33019
43019
53019
63019
73019
83019
93019
103019
113019
123019
133019
143019
153019
163019
173019
183019
193018
203018
213018
223018
233018
243018
253018
263018
273018
283018
293018
303018
313018

How May really feels in São Luís de Montes Belos

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.

São Luís de Montes Belos weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°2592512.93.5
Feb29° / 21°1932212.63.5
Mar30° / 21°19123.212.13.6
Apr30° / 20°8712.311.64.7
May30° / 19°132.411.26.2
Jun30° / 17°40.6116.5
Jul30° / 17°20.311.16.4
Aug32° / 19°70.811.45.1
Sep34° / 21°295.211.93.7
Oct32° / 22°10716.212.43.2
Nov30° / 21°18522.712.83.4
Dec29° / 21°23825.3133.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 27%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37426
47327
57327
67228
77129
87129
97030
106931
116832
126832
136832
146832
156931
166931
176931
187030
197129
207129
217228
227426
237525
247624
257624
267822
277921
287921
298020
308020
318020

Chance of precipitation in May

Any precipitation

São Luís de Montes Belos gets around 13 mm of rain over 2.4 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 8% and peaks near 12% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
112
211
310
410
59
69
78
88
98
108
118
129
139
149
159
169
179
189
199
209
219
228
238
248
257
267
276
286
295
305
315

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
141744333
241845312
342045282
452146272
552346252
652446231
762546221
862645221
962745211
1062845211
1162944201
1272944201
1372943201
1482943191
1582943190
1692943190
17102843180
18102843180
19112843180
20112843170
21122843170
22132843160
23132843150
24142943140
25143043140
26153043130
27153142120
28153242110
29153342100
3016344190
3116364080

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 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
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 24 min at the start of May to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over May. Sunrise moves from 7:36 AM to 7:46 AM, and sunset from 7:01 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.47:367:01
211.47:377:01
311.47:377:00
411.47:377:00
511.47:376:59
611.37:386:59
711.37:386:58
811.37:386:58
911.37:396:57
1011.37:396:57
1111.37:396:56
1211.37:406:56
1311.37:406:56
1411.37:406:55
1511.27:406:55
1611.27:416:55
1711.27:416:54
1811.27:416:54
1911.27:426:54
2011.27:426:54
2111.27:436:53
2211.27:436:53
2311.27:436:53
2411.27:446:53
2511.17:446:52
2611.17:446:52
2711.17:456:52
2811.17:456:52
2911.17:456:52
3011.17:466:52
3111.17:466:52

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.86 kWh/m².

For context, solar energy here swings from a low near 4.5 kWh/m² to a high of 6.06 kWh/m² in October across the year — May's 4.86 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in May

Hazard calendar for São Luís de Montes Belos

In seasonPeak

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

São Luís de Montes Belos's monsoon runs November–March, 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 São Luís de Montes Belos?

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

6.2
Sightseeing
3rd-best month of the year
8.3
Beach & pool
3rd-best month of the year

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

What to pack for São Luís de Montes Belos in May

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

In May, São Luís de Montes Belos sees daytime highs around 30°C and nights near 19°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in São Luís de Montes Belos in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 São Luís de Montes Belos peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 highExtremeJan 21UV 15Jun 22UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme

Air quality in São Luís de Montes Belos in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in São Luís de Montes Belos is worst in September — around 21 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (June, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1720 µg/m³Jun 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr8Good
May7Good
Jun7Good
Jul7Good
Aug11Good
Sep21Moderate
Oct13Moderate
Nov7Good
Dec7Good
Location & terrain

Where is São Luís de Montes Belos?

São Luís de Montes Belos sits at 16.5°S, 50.4°W, 579 m above sea level, in Brazil. The nearest listed city is Anicuns, 44 km away.

Topography around São Luís de Montes Belos

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

Within 3 km, the terrain around São Luís de Montes Belos has only modest variations in elevation — a maximum elevation change of 248 m around an average of 580 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 373 m; within 80 km, large variations in elevation — a maximum elevation change of 729 m.

The land around São Luís de Montes Belos is covered by grassland (39%), artificial surfaces (25%) and trees (21%) within 3 km, grassland (51%) and cropland (31%) within 16 km, and grassland (37%), cropland (37%) and trees (25%) within 80 km.

3 km
248 m
16 km
373 m
80 km
729 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Anicuns 44 km · Palmeiras de Goiás 57 km · Goiás 70 km · Indiara 79 km · Iporá 80 km · Itaberaí 82 km · Jussara 90 km · Trindade 95 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 Luís de Montes Belos (-16.525°, -50.3722°, elevation 579 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. 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).