Sartell weather in August

In August, Sartell sees average daytime highs of 78°F and overnight lows near 60°F, with 3.7 in of rain across 10.1 wet days and about 13.9 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 80°F in the first days to 77°F by the end. The sky is clear or mostly clear about 41% of the time in August, and the air most often feels humid.

Daylight stretches from about 14 h 36 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Sartell's 2nd-clearest and 12th-windiest month. For the whole year in context, see Sartell's year-round climate.

Daytime high
78°
2nd warmest
Overnight low
60°
11th coldest
Rainfall
3.7 in
10.1 wet days
Daylight
13 h 54 min
5:23 AM – 7:19 PM
Cloud cover
51%
2nd clearest
Wind
7 mph
12th windiest
Solar energy
5.46 kWh/m²
Travel score
6.9
out of 10

Sartell is city in Minnesota, United States.

Density
645/km²
people per km²
Founded
1907

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 80°F in the first days to 77°F by the end.

A typical August day in Sartell reaches about 78°F in the afternoon and slips back to 60°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 86°F. Set against its neighbours, August runs about 2°F cooler than July and about 8°F warmer than September.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
18062
28061
38061
48061
58061
67961
77961
87961
97960
107960
117960
127960
137860
147860
157860
167860
177860
187860
197860
207859
217859
227859
237859
247859
257759
267759
277758
287758
297758
307658
317657

How August really feels in Sartell

Once humidity and wind are folded in, August averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

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

Sartell weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan21° / 0.85.65.68.90.0
Feb26° / 10°0.94.84.310.10.0
Mar39° / 22°1.87.24.111.60.3
Apr54° / 35°3.010.32.713.33.1
May67° / 48°3.911.60.214.75.8
Jun76° / 58°4.512.1015.46.4
Jul80° / 63°3.810.6015.16.6
Aug78° / 60°3.710.1013.96.9
Sep70° / 51°3.08.6012.36.8
Oct55° / 38°2.78.9110.73.7
Nov39° / 25°1.76.23.79.30.3
Dec26° / 12°1.15.55.58.60.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36337
46337
56238
66139
76139
86040
95842
105842
115842
125842
135842
145842
155842
165941
175941
185941
195941
205941
215941
225941
236040
246040
256040
266139
276139
286139
296238
306238
316238

Chance of precipitation in August

Any precipitation

Sartell gets around 3.7 in of rain over 10.1 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 32% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
132
232
332
432
532
632
733
833
933
1033
1134
1234
1334
1433
1533
1633
1733
1833
1933
2033
2132
2232
2332
2431
2531
2631
2730
2830
2930
3029
3129

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12327281741
22327281741
32328281641
42328281641
52328281641
62328281640
72428281630
82428291630
92428291530
102528291530
112528291530
122528301520
132528301420
142628301420
152628301420
162627311420
172727311420
182726311410
192726311410
202826311410
212825311410
222925301410
232925301410
243025291410
253125281510
263225281510
273325271510
283424261510
293624241410
303824231410
314023221410

Wind in August

Winds average 7 mph in August, the calmest month.

Across August, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)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
257light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 36 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over August. Sunrise moves from 5:04 AM to 5:41 AM, and sunset from 7:42 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.65:047:42
214.65:057:40
314.55:077:39
414.55:087:38
514.55:097:36
614.45:107:35
714.45:117:33
814.35:137:32
914.35:147:30
1014.25:157:29
1114.25:167:27
1214.15:187:26
1314.15:197:24
1414.05:207:23
1514.05:217:21
1613.95:237:19
1713.95:247:18
1813.85:257:16
1913.85:267:14
2013.75:287:13
2113.75:297:11
2213.65:307:09
2313.65:317:07
2413.55:337:05
2513.55:347:04
2613.45:357:02
2713.45:367:00
2813.35:386:58
2913.35:396:56
3013.25:406:54
3113.25:416:52

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.46 kWh/m².

For context, solar energy here swings from a low near 1.4 kWh/m² to a high of 6.34 kWh/m² in July across the year — August's 5.46 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.5Bright
145.5Bright
155.5Bright
165.4Bright
175.4Bright
185.4Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.2Bright
265.1Bright
275.1Bright
285.1Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in August

Hazard calendar for Sartell

In seasonPeak

In August, Sartell sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Sartell's rainy season runs April–October, when most of the year's rain falls.

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

Is August a good time to visit Sartell?

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

6.9
Sightseeing
1st-best month of the year
6.5
Beach & pool
2nd-best month of the year

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

What to pack for Sartell in August

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

In August, Sartell sees daytime highs around 78°F and nights near 60°F. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Sartell in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sartell peaks around June 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 17UV 9Jan 11UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May7High
Jun9Very high
Jul7Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Sartell?

Sartell sits at 45.6°N, 94.2°W, 1,037 ft above sea level, in United States. The nearest listed city is Saint Cloud, 5.0 mi away.

Topography around Sartell

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Sartell.

Within 2 miles, the terrain around Sartell has only modest variations in elevation — a maximum elevation change of 157 ft around an average of 1,053 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 440 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 755 ft.

The land around Sartell is covered by trees (38%) and grassland (27%) within 2 miles, trees (33%), cropland (33%) and grassland (24%) within 10 miles, and cropland (41%), trees (32%) and grassland (21%) within 50 miles.

2 miles
157 ft
10 miles
440 ft
50 miles
755 ft
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Saint Cloud 5.0 mi · Buffalo 35 mi · Elk River 38 mi · Otsego 39 mi · Saint Michael 39 mi · Ramsey 44 mi · Champlin 49 mi · Anoka 49 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 Sartell (45.6216°, -94.2069°, elevation 1,037 ft), 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).