Fairhaven weather in August

In August, Fairhaven sees average daytime highs of 79°F and overnight lows near 65°F, with 3.4 in of rain across 9.5 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 81°F in the first days to 77°F by the end. The sky is clear or mostly clear about 35% 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 Fairhaven's 3rd-clearest and 12th-windiest month. For the whole year in context, see Fairhaven's year-round climate.

Daytime high
79°
2nd warmest
Overnight low
65°
11th coldest
Rainfall
3.4 in
9.5 wet days
Daylight
13 h 42 min
4:57 AM – 6:38 PM
Cloud cover
55%
3rd clearest
Wind
7 mph
12th windiest
Solar energy
5.35 kWh/m²
Travel score
6.8
out of 10

Fairhaven is town in Bristol County, Massachusetts, United States.

Founded
1659

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 81°F in the first days to 77°F by the end.

A typical August day in Fairhaven reaches about 79°F in the afternoon and slips back to 65°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 86°F. Set against its neighbours, August runs about 2°F cooler than July and about 7°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18167
28167
38167
48167
58067
68066
78066
88066
98066
108066
118066
128066
138066
147965
157965
167965
177965
187965
197965
207965
217964
227864
237864
247864
257864
267863
277863
287863
297763
307763
317762

How August really feels in Fairhaven

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.

Fairhaven weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan38° / 25°3.79.94.79.30.0
Feb39° / 26°3.29.14.510.30.0
Mar46° / 32°4.410.64.111.71.2
Apr56° / 42°3.810.80.713.13.7
May65° / 50°3.110.8014.35.7
Jun75° / 60°3.39.10156.8
Jul81° / 66°2.99.6014.76.6
Aug79° / 65°3.49.5013.76.8
Sep72° / 58°3.58.4012.37.0
Oct62° / 48°4.19.30.110.95.5
Nov52° / 38°3.78.90.59.72.8
Dec43° / 30°4.310.73.390.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% 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 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35446
45446
55446
65446
75248
85248
95248
105248
115050
125050
135050
144951
154951
165050
175050
185149
195149
205248
215248
225347
235446
245446
255644
265644
275644
285644
295644
305644
315644

Chance of precipitation in August

Any precipitation

Fairhaven gets around 3.4 in of rain over 9.5 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 31% and peaks near 34% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
133
233
333
433
533
633
733
833
933
1034
1134
1234
1334
1434
1534
1633
1733
1832
1932
2031
2130
2229
2329
2428
2528
2627
2727
2827
2926
3026
3126

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 28% of days. Sticky, muggy-or-worse air turns up on roughly 41% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
17182731170
27182731170
37182730170
48172730170
58172830170
68172829180
78162829180
88162829181
99162829181
109162829171
119162828171
1210162828171
1310162828161
1410172928161
1511172928151
1611172928151
1711182928141
1811182927140
1912192927130
2012202927130
2113202926120
2213212826110
2314222825110
2414232824100
2515242823100
2616252723100
271626272290
281726262290
291827262190
301827252180
311927252180

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 4:42 AM to 5:13 AM, and sunset from 6:58 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:426:58
214.24:436:57
314.24:446:56
414.24:456:54
514.14:466:53
614.14:476:52
714.14:486:51
814.04:496:49
914.04:506:48
1013.94:516:47
1113.94:526:45
1213.94:536:44
1313.84:546:43
1413.84:556:41
1513.74:566:40
1613.74:576:38
1713.64:586:37
1813.64:596:35
1913.65:006:34
2013.55:016:32
2113.55:026:31
2213.45:036:29
2313.45:046:28
2413.35:056:26
2513.35:076:24
2613.35:086:23
2713.25:096:21
2813.25:106:20
2913.15:116:18
3013.15:126:16
3113.05:136:14

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.35 kWh/m².

For context, solar energy here swings from a low near 1.65 kWh/m² to a high of 6.05 kWh/m² in June across the year — August's 5.35 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.4Bright
115.4Bright
125.4Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.1Bright
265.1Bright
275.1Bright
285.0Bright
295.0Bright
305.0Bright
314.9Bright
Planning a trip in August

Hazard calendar for Fairhaven

In seasonPeak

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

Fairhaven 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 Fairhaven?

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

6.8
Sightseeing
2nd-best month of the year
6.5
Beach & pool
2nd-best month of the year

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

What to pack for Fairhaven in August

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

In August, Fairhaven sees daytime highs around 79°F and nights near 65°F. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Fairhaven in August

The nearest coast averages about 70°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 70°F and coldest in February near 37°F.

It's comfortable for a long swim from Jul 16 to Sep 8 — about 1.8 months when the water holds above 68°F.

30°40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan41Bracing
Feb37Bracing
Mar38Bracing
Apr44Bracing
May53Bracing
Jun61Cool
Jul68Refreshing
Aug70Refreshing
Sep67Cool
Oct62Cool
Nov54Bracing
Dec47Bracing

UV index in Fairhaven 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 Fairhaven peaks around June 23 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 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 8Dec 23UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr5High
May7Very high
Jun8Very high
Jul8Very high
Aug5Moderate
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Fairhaven 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 Fairhaven is worst in July — around 16 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1516 µg/m³Nov 189 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar14Moderate
Apr14Moderate
May15Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep12Good
Oct10Good
Nov8Good
Dec10Good
Location & terrain

Where is Fairhaven?

Fairhaven sits at 41.6°N, 70.9°W, 20 ft above sea level, in United States. The nearest listed city is New Bedford, 1.2 mi away.

Topography around Fairhaven

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

Within 2 miles, the terrain around Fairhaven has only modest variations in elevation — a maximum elevation change of 151 ft around an average of 33 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 600 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,076 ft.

The land around Fairhaven is covered by artificial surfaces (34%), water (28%) and trees (24%) within 2 miles, trees (49%) and water (35%) within 10 miles, and water (55%) and trees (38%) within 50 miles.

2 miles
151 ft
10 miles
600 ft
50 miles
1,076 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: New Bedford 1.2 mi · Fall River 14 mi · Somerset 15 mi · Swansea 17 mi · Middleborough 17 mi · Portsmouth 18 mi · Bristol 19 mi · Taunton 21 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 Fairhaven (41.6376°, -70.9036°, elevation 20 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. 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).