Port Huron weather in October

In October, Port Huron sees average daytime highs of 58°F and overnight lows near 46°F, with 3.0 in of precipitation across 10.8 wet days and about 10.8 hours of daylight. It is the 6th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 64°F in the first days to 53°F by the end. The sky is clear or mostly clear about 26% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of October to 10 h 06 min by month's end. Set against the rest of the year, October is Port Huron's 6th-clearest and 4th-windiest month. For the whole year in context, see Port Huron's year-round climate.

Daytime high
58°
6th warmest
Overnight low
46°
7th coldest
Precipitation
3.0 in
10.8 wet days
Daylight
10 h 48 min
6:51 AM – 5:39 PM
Cloud cover
63%
6th clearest
Wind
10 mph
4th windiest
Solar energy
2.81 kWh/m²
Travel score
4.3
out of 10

Port Huron is city in Michigan, United States.

Density
923/km²
people per km²
Founded
1814

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 64°F in the first days to 53°F by the end.

A typical October day in Port Huron reaches about 58°F in the afternoon and slips back to 46°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 48°F and 69°F. Set against its neighbours, October runs about 12°F cooler than September and about 13°F warmer than November.

30°40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
16551
26450
36450
46350
56349
66349
76249
86248
96148
106148
116147
126047
136047
145946
155946
165846
175845
185745
195745
205644
215644
225644
235543
245543
255443
265442
275342
285342
295341
305241
315241

How October really feels in Port Huron

Once humidity and wind are folded in, October 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

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

Port Huron weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan30° / 19°2.39.67.39.20.0
Feb32° / 20°2.08.46.310.20.0
Mar40° / 27°2.29.64.611.60.3
Apr52° / 38°3.311.41.813.12.7
May64° / 49°3.312014.45.4
Jun74° / 60°3.410.8015.16.7
Jul79° / 65°2.811014.86.6
Aug77° / 64°2.810.4013.86.9
Sep71° / 56°2.99.1012.36.7
Oct58° / 46°3.010.80.110.84.3
Nov46° / 36°2.69.72.49.51.2
Dec35° / 26°2.29.45.68.90.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34852
44951
54852
64852
74852
84753
94753
104852
114753
124654
134555
144456
154357
164258
174159
183961
193862
203763
213664
223565
233466
243466
253367
263268
273268
283169
293169
303169
313070

Chance of precipitation in October

Any precipitation

Port Huron gets around 3.0 in of rain and snow over 10.8 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 34% and peaks near 36% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
335
434
534
634
733
833
933
1032
1132
1232
1332
1432
1533
1633
1734
1835
1935
2036
2136
2236
2336
2436
2536
2636
2736
2836
2935
3034
3134

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1731773
2761662
3771562
4781462
5801352
6821251
7821251
8841141
9851041
1086941
1186941
1288831
1389731
1490721
1591720
1692620
1793610
1893610
1993610
2094510
2194510
2294510
2395410
2496400
2596400
2697300
2797300
2897300
2997300
3097300
3198200

Wind in October

Winds average 10 mph in October.

Across October, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze
3110light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 30 min at the start of October to 10 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over October. Sunrise moves from 6:33 AM to 7:10 AM, and sunset from 6:05 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:336:05
211.56:346:03
311.46:356:01
411.46:365:59
511.36:375:58
611.36:385:56
711.26:405:54
811.26:415:52
911.16:425:51
1011.16:435:49
1111.06:445:47
1211.06:465:45
1310.96:475:44
1410.96:485:42
1510.96:495:40
1610.86:515:39
1710.86:525:37
1810.76:535:36
1910.76:545:34
2010.66:565:33
2110.66:575:31
2210.56:585:29
2310.56:595:28
2410.47:015:26
2510.47:025:25
2610.37:035:24
2710.37:055:22
2810.37:065:21
2910.27:075:19
3010.27:085:18
3110.17:105:17

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.81 kWh/m².

For context, solar energy here swings from a low near 1.36 kWh/m² to a high of 6.37 kWh/m² in June across the year — October's 2.81 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.5Moderate
43.4Moderate
53.4Moderate
63.3Moderate
73.3Moderate
83.2Moderate
93.2Moderate
103.1Moderate
113.1Moderate
123.0Moderate
133.0Moderate
142.9Moderate
152.9Moderate
162.8Moderate
172.8Moderate
182.7Moderate
192.7Moderate
202.6Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.4Moderate
252.4Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.2Moderate
302.2Moderate
312.2Moderate
Planning a trip in October

Is October a good time to visit Port Huron?

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

4.3
Sightseeing
6th-best month of the year
0.5
Beach & pool
6th-best month of the year

October is a reasonable time to visit Port Huron for sightseeing.

What to pack for Port Huron in October

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

In October, Port Huron sees daytime highs around 58°F and nights near 46°F. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Port Huron in October

The nearest coast averages about 58°F in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 11 mi away) is warmest in August at about 71°F and coldest in February near 33°F.

It's comfortable for a long swim from Jul 19 to Sep 8 — about 1.7 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan36Bracing
Feb33Bracing
Mar34Bracing
Apr37Bracing
May44Bracing
Jun57Bracing
Jul68Refreshing
Aug71Refreshing
Sep67Cool
Oct58Bracing
Nov49Bracing
Dec41Bracing

UV index in Port Huron in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Port Huron peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 20UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun9Very high
Jul8Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Port Huron in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Port Huron is worst in July — around 15 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1415 µg/m³Oct 248 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar13Moderate
Apr13Moderate
May14Moderate
Jun15Moderate
Jul15Moderate
Aug14Moderate
Sep12Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Port Huron?

Port Huron sits at 43.0°N, 82.4°W, 604 ft above sea level, in United States. The nearest listed city is Sarnia, 1.2 mi away.

Topography around Port Huron

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

Within 2 miles, the terrain around Port Huron has only modest variations in elevation — a maximum elevation change of 79 ft around an average of 597 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 246 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 705 ft.

The land around Port Huron is covered by artificial surfaces (53%) within 2 miles, trees (29%), cropland (26%) and water (21%) within 10 miles, and cropland (45%) and water (25%) within 50 miles.

2 miles
79 ft
10 miles
246 ft
50 miles
705 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: Sarnia 1.2 mi · Mount Clemens 35 mi · Clinton Township 37 mi · Shelby 37 mi · Saint Clair Shores 40 mi · Chatham 40 mi · Strathroy 40 mi · Sterling Heights 41 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 Port Huron (42.9709°, -82.4249°, elevation 604 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).