Sinop weather in May

In May, Sinop sees average daytime highs of 31°C and overnight lows near 21°C, with 31 mm of rain across 6.5 wet days and about 11.5 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 35% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of May to 11 h 24 min by month's end. Set against the rest of the year, May is Sinop's 5th-clearest and 4th-windiest month. For the whole year in context, see Sinop's year-round climate.

Daytime high
31°
6th warmest
Overnight low
21°
4th coldest
Rainfall
31 mm
6.5 wet days
Daylight
11 h 30 min
6:55 AM – 6:22 PM
Cloud cover
55%
5th clearest
Wind
7 km/h
4th windiest
Solar energy
4.84 kWh/m²
Travel score
4.7
out of 10

Sinop 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 31°C through the month.

A typical May day in Sinop reaches about 31°C in the afternoon and slips back to 21°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°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)
13121
23121
33121
43121
53121
63121
73121
83121
93121
103121
113121
123121
133121
143121
153121
163121
173121
183121
193121
203121
213121
223121
233121
243121
253121
263121
273121
283121
293221
303221
313221

How May really feels in Sinop

Once humidity and wind are folded in, May averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sinop weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°30528.712.62.9
Feb30° / 22°27926.412.42.8
Mar30° / 22°25627.112.12.9
Apr31° / 22°13019.611.73.6
May31° / 21°316.511.54.7
Jun32° / 20°50.911.35.2
Jul32° / 20°10.411.45.1
Aug34° / 21°71.311.63.9
Sep34° / 22°538.711.93.2
Oct32° / 22°14620.212.33.0
Nov30° / 22°23225.212.52.9
Dec30° / 22°29627.612.73.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24555
34456
44456
54555
64555
74654
84753
94753
104852
114852
124951
135050
145149
155248
165347
175545
185545
195743
205842
216040
226139
236337
246436
256535
266733
276832
287030
297030
307129
317327

Chance of precipitation in May

Any precipitation

Sinop gets around 31 mm of rain over 6.5 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 22% and peaks near 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
233
331
429
527
626
725
824
923
1023
1123
1222
1322
1422
1522
1622
1722
1822
1921
2021
2121
2220
2319
2418
2517
2616
2715
2814
2913
3012
3111

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 87% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100422731
200424711
300525691
401527661
501528651
601630621
711631601
811633590
911634580
1011736550
1111737540
1211738530
1311839510
1411840500
1511941490
1611942470
17111043460
18011044440
19011144430
20011245420
21021346400
22021446390
23021546370
24021647350
25031747340
26031847320
27032047300
28032147280
29042347260
30042547240
31042746230

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
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 36 min at the start of May to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over May. Sunrise moves from 6:52 AM to 6:59 AM, and sunset from 6:27 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:526:27
211.66:526:26
311.66:526:26
411.66:526:26
511.56:526:25
611.56:526:25
711.56:536:24
811.56:536:24
911.56:536:24
1011.56:536:23
1111.56:536:23
1211.56:546:23
1311.56:546:23
1411.56:546:22
1511.56:546:22
1611.56:556:22
1711.46:556:22
1811.46:556:22
1911.46:556:21
2011.46:566:21
2111.46:566:21
2211.46:566:21
2311.46:566:21
2411.46:576:21
2511.46:576:21
2611.46:576:20
2711.46:576:20
2811.46:586:20
2911.46:586:20
3011.46:586:20
3111.46:596:20

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.84 kWh/m².

For context, solar energy here swings from a low near 4.8 kWh/m² to a high of 5.83 kWh/m² in September across the year — May's 4.84 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in May

Hazard calendar for Sinop

In seasonPeak

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

Sinop's monsoon runs October–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 Sinop?

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

4.7
Sightseeing
3rd-best month of the year
7.1
Beach & pool
4th-best month of the year

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

What to pack for Sinop in May

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

In May, Sinop sees daytime highs around 31°C and nights near 21°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Sinop in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sinop peaks around February 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 14 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 12UV 15Sep 14UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May10Very high
Jun8Very high
Jul9Very high
Aug10Very high
Sep7Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Sinop 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 Sinop is worst in September — around 60 µg/m³ PM2.5 (unhealthy), about 5.8× the cleanest month (April, 10 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModeratePoorModerateSep 1656 µg/m³Apr 1511 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Good
Mar12Moderate
Apr10Good
May13Moderate
Jun18Moderate
Jul13Moderate
Aug25Moderate
Sep60Unhealthy
Oct29Moderate
Nov17Moderate
Dec12Good
Location & terrain

Where is Sinop?

Sinop sits at 11.9°S, 55.5°W, 378 m above sea level, in Brazil. The nearest listed city is Sorriso, 79 km away.

Topography around Sinop

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

Within 3 km, the terrain around Sinop has only modest variations in elevation — a maximum elevation change of 50 m around an average of 375 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 85 m; within 80 km, only modest variations in elevation — a maximum elevation change of 203 m.

The land around Sinop is covered by artificial surfaces (59%) within 3 km, cropland (53%) and trees (30%) within 16 km, and trees (47%) and cropland (47%) within 80 km.

3 km
50 m
16 km
85 m
80 km
203 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Sorriso 79 km · Colíder 116 km · Lucas do Rio Verde 141 km · Tapurah 147 km · Peixoto de Azevedo 191 km · Matupá 198 km · Guarantã do Norte 222 km · Nova Mutum 227 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 Sinop (-11.8642°, -55.5025°, elevation 378 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).