Sinop weather in August

In August, Sinop sees average daytime highs of 34°C and overnight lows near 21°C, with 7 mm of rain across 1.3 wet days and about 11.6 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 69% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 11 h 30 min at the start of August to 11 h 48 min by month's end. Set against the rest of the year, August is Sinop's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Sinop's year-round climate.

Daytime high
34°
1st warmest
Overnight low
21°
3rd coldest
Rainfall
7 mm
1.3 wet days
Daylight
11 h 36 min
6:58 AM – 6:34 PM
Cloud cover
31%
2nd clearest
Wind
8 km/h
2nd windiest
Solar energy
5.59 kWh/m²
Travel score
3.9
out of 10

Sinop is human settlement in Brazil.

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical August day in Sinop reaches about 34°C in the afternoon and slips back to 21°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 36°C. Set against its neighbours, August runs about 2°C warmer than July and on par with September.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13320
23320
33320
43320
53420
63420
73420
83420
93420
103420
113420
123421
133421
143421
153421
163421
173421
183421
193421
203421
213421
223421
233421
243421
253421
263421
273421
283422
293422
303422
313422

How August really feels in Sinop

Once humidity and wind are folded in, August 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 August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sinop weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 10th-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
19010
2919
3919
4919
59010
69010
78911
88911
98911
108713
118713
128713
138614
148614
158515
168515
178416
188317
198317
208317
218317
228218
238218
248218
258218
268218
278119
288119
298119
307921
317921

Chance of precipitation in August

Any precipitation

Sinop gets around 7 mm of rain over 1.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 5% and peaks near 11% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
72
82
92
103
113
123
134
144
154
165
175
185
195
206
216
226
236
247
257
268
278
289
2910
3010
3111

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 16% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
124492350
224482350
325482350
425472350
525462360
625452360
726442461
826432471
926422381
1026412381
1126412392
1226402392
13254023102
14254023112
15253923112
16243923122
17233923123
18223824133
19213824143
20203725143
21193626154
22183526164
23173527174
24163428185
25153328195
26143229206
27133129217
28122929227
29122830228
30112730239
311125302410

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 30 min at the start of August to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over August. Sunrise moves from 7:04 AM to 6:49 AM, and sunset from 6:32 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:046:32
211.57:046:32
311.57:036:33
411.57:036:33
511.57:036:33
611.57:026:33
711.57:026:33
811.57:026:33
911.57:016:33
1011.57:016:34
1111.67:006:34
1211.67:006:34
1311.66:596:34
1411.66:596:34
1511.66:586:34
1611.66:586:34
1711.66:576:34
1811.66:576:34
1911.66:566:34
2011.66:566:35
2111.76:556:35
2211.76:556:35
2311.76:546:35
2411.76:546:35
2511.76:536:35
2611.76:526:35
2711.76:526:35
2811.76:516:35
2911.76:516:35
3011.76:506:35
3111.86:496:35

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.59 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 — August's 5.59 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in August

Hazard calendar for Sinop

In seasonPeak

None of Sinop's seasonal hazards are active in August. 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 August a good time to visit Sinop?

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

3.9
Sightseeing
4th-best month of the year
7.6
Beach & pool
3rd-best month of the year

August is a weaker month for outdoor sightseeing in Sinop. The water and warmth also suit a beach or pool day.

What to pack for Sinop in August

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

In August, Sinop sees daytime highs around 34°C and nights near 21°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Sinop in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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
August 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).