Munster weather in August

In August, Munster sees average daytime highs of 80°F and overnight lows near 65°F, with 3.7 in of rain across 10.6 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 80°F through the month. The sky is clear or mostly clear about 37% of the time in August, and the air most often feels humid.

Daylight stretches from about 14 h 18 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Munster's 2nd-clearest and 12th-windiest month. For the whole year in context, see Munster's year-round climate.

Daytime high
80°
2nd warmest
Overnight low
65°
11th coldest
Rainfall
3.7 in
10.6 wet days
Daylight
13 h 42 min
5:04 AM – 6:45 PM
Cloud cover
53%
2nd clearest
Wind
7 mph
12th windiest
Solar energy
5.71 kWh/m²
Travel score
6.6
out of 10

Munster is town in the U.S. state of Indiana.

Density
1,162/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

Day-to-day highs hold fairly steady near 80°F through the month.

A typical August day in Munster reaches about 80°F in the afternoon and slips back to 65°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 73°F and 88°F. Set against its neighbours, August runs about 2°F cooler than July and about 6°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18266
28266
38166
48166
58166
68166
78165
88165
98165
108165
118165
128065
138065
148065
158065
168065
178065
188065
198064
208064
218064
228064
238064
248064
258064
268064
278064
288063
297963
307963
317963

How August really feels in Munster

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.

Munster weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan32° / 19°2.59.16.19.30.0
Feb35° / 22°2.17.6510.30.0
Mar46° / 31°3.010.63.111.71.2
Apr58° / 41°4.312.50.913.13.9
May69° / 52°4.512.1014.36.0
Jun78° / 62°4.011.70156.4
Jul82° / 67°3.811.9014.76.1
Aug80° / 65°3.710.6013.76.6
Sep74° / 57°3.08.8012.37.0
Oct62° / 46°3.39.70.210.95.3
Nov48° / 35°2.89.11.29.71.8
Dec37° / 25°2.38.44.190.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25743
35743
45743
55743
65842
75842
85743
95743
105743
115743
125743
135842
145842
155842
165842
175842
185842
195743
205743
215743
225644
235743
245743
255743
265842
275842
285842
296040
306040
316040

Chance of precipitation in August

Any precipitation

Munster gets around 3.7 in of rain over 10.6 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 34% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
234
333
433
533
633
733
833
934
1034
1135
1235
1335
1436
1536
1636
1736
1836
1936
2036
2136
2235
2335
2434
2533
2633
2732
2831
2931
3031
3130

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 26% of days. Sticky, muggy-or-worse air turns up on roughly 40% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
18232627151
28232627151
38232726151
48242726151
58242726151
68242725151
79242625151
89242625161
99242624161
109242624161
1110242624161
1210242724151
1310242723151
1410242723151
1510242724151
1610242724151
1710242724141
1810232725141
1910232725141
2011232726131
2111222726131
2211222727131
2311222727131
2411222727121
2511232627121
2612232627121
2713232626110
2813242626110
2914242526100
3015242525100
311625252590

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 7 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
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 18 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over August. Sunrise moves from 4:48 AM to 5:19 AM, and sunset from 7:04 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:487:04
214.24:497:03
314.24:507:02
414.24:517:01
514.14:526:59
614.14:536:58
714.04:546:57
814.04:556:56
914.04:566:54
1013.94:576:53
1113.94:586:52
1213.84:596:50
1313.85:006:49
1413.85:026:48
1513.75:036:46
1613.75:046:45
1713.65:056:43
1813.65:066:42
1913.65:076:40
2013.55:086:39
2113.55:096:37
2213.45:106:36
2313.45:116:34
2413.35:126:32
2513.35:136:31
2613.35:146:29
2713.25:156:28
2813.25:166:26
2913.15:176:24
3013.15:186:23
3113.05:196:21

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.71 kWh/m².

For context, solar energy here swings from a low near 1.63 kWh/m² to a high of 6.57 kWh/m² in June across the year — August's 5.71 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.1Intense
46.1Intense
56.1Intense
66.0Intense
76.0Intense
86.0Bright
95.9Bright
105.9Bright
115.9Bright
125.8Bright
135.8Bright
145.8Bright
155.7Bright
165.7Bright
175.7Bright
185.6Bright
195.6Bright
205.6Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.4Bright
265.4Bright
275.4Bright
285.3Bright
295.3Bright
305.3Bright
315.2Bright
Planning a trip in August

Is August a good time to visit Munster?

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

6.6
Sightseeing
2nd-best month of the year
6.6
Beach & pool
1st-best month of the year

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

What to pack for Munster in August

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

In August, Munster sees daytime highs around 80°F and nights near 65°F. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Munster in August

The nearest coast averages about 73°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 8 mi away) is warmest in August at about 73°F and coldest in February near 35°F.

It's comfortable for a long swim from Jul 10 to Sep 16 — about 2.3 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan38Bracing
Feb35Bracing
Mar35Bracing
Apr39Bracing
May46Bracing
Jun59Cool
Jul70Refreshing
Aug73Refreshing
Sep68Refreshing
Oct58Bracing
Nov49Bracing
Dec42Bracing

UV index in Munster in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Munster peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Munster 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 Munster is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1418 µg/m³Oct 238 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar15Moderate
Apr15Moderate
May17Moderate
Jun17Moderate
Jul18Moderate
Aug16Moderate
Sep12Moderate
Oct8Good
Nov9Good
Dec10Good
Location & terrain

Where is Munster?

Munster sits at 41.6°N, 87.5°W, 610 ft above sea level, in United States. The nearest listed city is Lansing, 1.2 mi away.

Topography around Munster

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

Within 2 miles, the terrain around Munster has only modest variations in elevation — a maximum elevation change of 92 ft around an average of 614 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 509 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 673 ft.

The land around Munster is covered by artificial surfaces (50%) and trees (33%) within 2 miles, artificial surfaces (36%) and trees (33%) within 10 miles, and cropland (37%) and water (24%) within 50 miles.

2 miles
92 ft
10 miles
509 ft
50 miles
673 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Lansing 1.2 mi · Hammond 1.2 mi · Highland 3.1 mi · Calumet City 3.7 mi · Dyer 5.0 mi · Griffith 5.0 mi · South Holland 5.6 mi · East Chicago 6.2 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 Munster (41.5645°, -87.5125°, elevation 610 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).