Newport weather in September

In September, Newport sees average daytime highs of 68°F and overnight lows near 62°F, with 4.1 in of rain across 8.8 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 71°F in the first days to 65°F by the end. The sky is clear or mostly clear about 40% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Newport's 1st-clearest and 9th-windiest month. For the whole year in context, see Newport's year-round climate.

Daytime high
68°
3rd warmest
Overnight low
62°
10th coldest
Rainfall
4.1 in
8.8 wet days
Daylight
12 h 18 min
5:31 AM – 5:48 PM
Cloud cover
52%
1st clearest
Wind
11 mph
9th windiest
Solar energy
4.27 kWh/m²
Travel score
6.6
out of 10

Newport is city in and county seat of Newport County, Rhode Island, United States.

Air quality
Good
PM2.5 7.9 µg/m³ · 2018
Density
821/km²
people per km²
Founded
1639

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 71°F in the first days to 65°F by the end.

A typical September day in Newport reaches about 68°F in the afternoon and slips back to 62°F overnight — a 6°F spread between the day's warmth and the night's chill. On most days the high lands between 63°F and 73°F. Set against its neighbours, September runs about 5°F cooler than August and about 8°F warmer than October.

50°60°70°80°151015202530
Avg high (°F)Avg low (°F)
17165
27165
37165
47165
57065
67065
77064
87064
97064
106964
116963
126963
136963
146963
156862
166862
176862
186862
196761
206761
216761
226761
236760
246660
256660
266660
276659
286559
296559
306558

How September really feels in Newport

Once humidity and wind are folded in, September 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

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

Newport weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan38° / 28°4.410.64.59.30.0
Feb38° / 29°3.89.63.910.30.0
Mar42° / 34°5.110.93.611.70.3
Apr49° / 42°4.611.40.613.12.0
May57° / 51°3.910.9014.34.0
Jun66° / 60°3.79.3014.96.1
Jul73° / 67°3.08.9014.77.0
Aug73° / 68°3.68.8013.77.1
Sep68° / 62°4.18.8012.36.6
Oct60° / 53°5.1100.110.95.0
Nov51° / 43°4.59.70.49.72.7
Dec44° / 35°5.211.52.99.10.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15743
25644
35743
45644
55644
65644
75644
85644
95644
105743
115743
125644
135644
145644
155644
165644
175545
185545
195545
205446
215446
225347
235446
245446
255545
265446
275446
285545
295545
305644

Chance of precipitation in September

Any precipitation

Newport gets around 4.1 in of rain over 8.8 wet days in September. 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 34% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
126
227
327
427
527
627
727
827
927
1027
1127
1227
1327
1427
1527
1627
1727
1828
1928
2029
2129
2230
2331
2431
2532
2632
2733
2833
2934
3034

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1122231304
2132331294
3142331284
4162330274
5172330264
6182330254
7202330244
8212329244
9222329233
10232328223
11252328223
12262327212
13282327212
14292326202
15302326201
16322325191
17332325181
18342325181
19352324170
20362324170
21372323160
22382423150
23402422140
24412422140
25422421130
26442421120
27452420110
28462420100
2948241990
3049241980

Wind in September

Winds average 11 mph in September.

Across September, daily wind ranges from about 10 mph on the calmest days to 12 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
611light breeze
711light breeze
811light breeze
911light breeze
1011light breeze
1111light breeze
1211light breeze
1311light breeze
1411light breeze
1511light breeze
1611light breeze
1711light breeze
1811light breeze
1911light breeze
2011light breeze
2111light breeze
2211light breeze
2311light breeze
2411light breeze
2511light breeze
2611light breeze
2711light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over September. Sunrise moves from 5:16 AM to 5:46 AM, and sunset from 6:14 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:166:14
212.95:176:13
312.95:186:11
412.85:196:09
512.85:206:07
612.75:216:06
712.75:226:04
812.75:236:02
912.65:246:00
1012.65:255:59
1112.55:265:57
1212.55:275:55
1312.45:285:53
1412.45:295:51
1512.35:305:50
1612.35:315:48
1712.25:325:46
1812.25:335:44
1912.15:355:42
2012.15:365:41
2112.05:375:39
2212.05:385:37
2311.95:395:35
2411.95:405:33
2511.85:415:32
2611.85:425:30
2711.85:435:28
2811.75:445:26
2911.75:455:25
3011.65:465:23

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.27 kWh/m².

For context, solar energy here swings from a low near 1.64 kWh/m² to a high of 6.12 kWh/m² in July across the year — September's 4.27 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.7Bright
64.7Bright
74.6Bright
84.6Bright
94.5Bright
104.5Bright
114.5Bright
124.4Bright
134.4Bright
144.3Bright
154.3Bright
164.3Bright
174.2Bright
184.2Bright
194.2Bright
204.1Bright
214.1Bright
224.0Bright
234.0Moderate
243.9Moderate
253.9Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.7Moderate
303.7Moderate
Planning a trip in September

Hazard calendar for Newport

In seasonPeak

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

Newport 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 September a good time to visit Newport?

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

6.6
Sightseeing
3rd-best month of the year
3.5
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Newport for sightseeing.

What to pack for Newport in September

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

In September, Newport sees daytime highs around 68°F and nights near 62°F. Worth packing: rain gear. About 9 days see rain.

rain gear

Sea temperature near Newport in September

The nearest coast averages about 67°F in September — 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 69°F and coldest in February near 39°F.

It's comfortable for a long swim from Jul 26 to Aug 30 — about 1.2 months when the water holds above 68°F.

40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°F)Comfort
Jan43Bracing
Feb39Bracing
Mar40Bracing
Apr44Bracing
May51Bracing
Jun60Cool
Jul67Cool
Aug69Refreshing
Sep67Cool
Oct61Cool
Nov55Bracing
Dec49Bracing

UV index in Newport in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Newport 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 8Dec 23UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr5High
May7Very high
Jun8Very high
Jul8Very high
Aug5High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Newport?

Newport sits at 41.5°N, 71.3°W, 30 ft above sea level, in United States. The nearest listed city is Middletown, 3.7 mi away.

Topography around Newport

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

Within 2 miles, the terrain around Newport has only modest variations in elevation — a maximum elevation change of 177 ft around an average of 33 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 315 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,181 ft.

The land around Newport is covered by water (43%) and trees (23%) within 2 miles, water (63%) and trees (24%) within 10 miles, and trees (47%) and water (46%) within 50 miles.

2 miles
177 ft
10 miles
315 ft
50 miles
1,181 ft
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Middletown 3.7 mi · Narragansett 7.5 mi · Portsmouth 8.7 mi · North Kingstown 8.7 mi · South Kingstown 11 mi · Bristol 13 mi · Warwick 16 mi · Fall River 17 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 Newport (41.4901°, -71.3128°, elevation 30 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).