Hanover weather in August

In August, Hanover sees average daytime highs of 76°F and overnight lows near 65°F, with 3.3 in of rain across 9 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 77°F in the first days to 74°F by the end. The sky is clear or mostly clear about 38% 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 Hanover's 2nd-clearest and 12th-windiest month. For the whole year in context, see Hanover's year-round climate.

Daytime high
76°
2nd warmest
Overnight low
65°
11th coldest
Rainfall
3.3 in
9 wet days
Daylight
13 h 42 min
4:56 AM – 6:39 PM
Cloud cover
54%
2nd clearest
Wind
8 mph
12th windiest
Solar energy
5.43 kWh/m²
Travel score
7.2
out of 10

Hanover is town in Massachusetts, United States.

Founded
1649

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 77°F in the first days to 74°F by the end.

A typical August day in Hanover reaches about 76°F in the afternoon and slips back to 65°F overnight — a 11°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 83°F. Set against its neighbours, August runs on par with July and about 6°F warmer than September.

50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17767
27767
37767
47767
57766
67766
77766
87766
97766
107666
117666
127666
137666
147666
157665
167665
177665
187665
197565
207565
217565
227565
237564
247564
257564
267464
277464
287464
297464
307463
317463

How August really feels in Hanover

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.

Hanover weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan37° / 26°4.110.65.29.30.0
Feb38° / 27°3.59.5510.30.0
Mar43° / 33°4.811.34.511.70.6
Apr52° / 41°4.211.30.913.12.7
May61° / 50°3.311014.44.9
Jun71° / 59°3.49.20156.6
Jul77° / 66°2.88.9014.87.0
Aug76° / 65°3.39013.77.2
Sep70° / 59°3.78.2012.36.8
Oct60° / 50°4.69.60.110.85.0
Nov51° / 40°4.19.70.59.62.4
Dec42° / 32°4.811.33.590.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 44%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35644
45644
55644
65644
75545
85545
95545
105545
115446
125446
135446
145446
155446
165446
175446
185545
195545
205644
215743
225743
235842
245842
255842
265941
275941
285941
295941
305941
315842

Chance of precipitation in August

Any precipitation

Hanover gets around 3.3 in of rain over 9 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 29% and peaks near 33% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
132
232
332
432
532
632
732
833
933
1033
1133
1232
1332
1432
1531
1631
1730
1830
1929
2028
2128
2227
2326
2426
2526
2625
2725
2825
2925
3025
3125

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 34% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1519313610
2518313510
3518313510
4618323510
5618323510
6617323410
7617323410
8717333310
9717333310
10717333210
11717343210
12718343110
13818343010
1481835309
1581835299
1681936299
1791936288
1892036288
1992036277
20102136277
21102236266
22112335256
23122335255
24122435245
25132534234
26142633234
27152733224
28152732224
29162832214
30172831213
31182830203

Wind in August

Winds average 8 mph in August, the calmest month.

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

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

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 4:40 AM to 5:12 AM, and sunset from 6:59 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:406:59
214.34:416:57
314.24:426:56
414.24:436:55
514.24:446:54
614.14:456:53
714.14:466:51
814.04:476:50
914.04:486:49
1014.04:496:47
1113.94:506:46
1213.94:526:45
1313.84:536:43
1413.84:546:42
1513.84:556:40
1613.74:566:39
1713.74:576:37
1813.64:586:36
1913.64:596:34
2013.55:006:33
2113.55:016:31
2213.55:026:30
2313.45:036:28
2413.45:046:26
2513.35:056:25
2613.35:076:23
2713.25:086:21
2813.25:096:20
2913.15:106:18
3013.15:116:16
3113.05:126:15

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.43 kWh/m².

For context, solar energy here swings from a low near 1.6 kWh/m² to a high of 6.13 kWh/m² in July across the year — August's 5.43 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.6Bright
75.6Bright
85.6Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.1Bright
295.1Bright
305.0Bright
315.0Bright
Planning a trip in August

Hazard calendar for Hanover

In seasonPeak

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

Hanover sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Hanover?

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

7.2
Sightseeing
1st-best month of the year
6.1
Beach & pool
2nd-best month of the year

August is one of the better times to visit Hanover for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Hanover in August

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

In August, Hanover sees daytime highs around 76°F and nights near 65°F. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

Sea temperature near Hanover in August

The nearest coast averages about 66°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 9 mi away) is warmest in August at about 66°F and coldest in February near 38°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan41Bracing
Feb38Bracing
Mar38Bracing
Apr42Bracing
May50Bracing
Jun58Bracing
Jul65Cool
Aug66Cool
Sep63Cool
Oct57Bracing
Nov51Bracing
Dec46Bracing

UV index in Hanover in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hanover peaks around July 10 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 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 highHighHighModerateLowJul 10UV 8Dec 23UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr5High
May7Very high
Jun8Very high
Jul8Very high
Aug5Moderate
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Hanover?

Hanover sits at 42.1°N, 70.8°W, 52 ft above sea level, in United States. The nearest listed city is Rockland, 5.6 mi away.

Topography around Hanover

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

Within 2 miles, the terrain around Hanover has only modest variations in elevation — a maximum elevation change of 240 ft around an average of 89 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 302 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 935 ft.

The land around Hanover is covered by trees (85%) within 2 miles, trees (69%) within 10 miles, and trees (47%) and water (45%) within 50 miles.

2 miles
240 ft
10 miles
302 ft
50 miles
935 ft
treesgrasslandartificial surfaceswaterwetland
August weather nearby: Rockland 5.6 mi · Abington 6.8 mi · Duxbury 8.7 mi · Weymouth 9.9 mi · Brockton 11 mi · Braintree 12 mi · Randolph 12 mi · Quincy 14 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 Hanover (42.1132°, -70.812°, elevation 52 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).