Marrero weather in October

In October, Marrero sees average daytime highs of 77°F and overnight lows near 65°F, with 3.5 in of rain across 8 wet days and about 11.3 hours of daylight. It is the 6th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 81°F in the first days to 74°F by the end. The sky is clear or mostly clear about 53% of the time in October, and the air most often feels muggy.

Daylight stretches from about 11 h 42 min at the start of October to 10 h 48 min by month's end. Set against the rest of the year, October is Marrero's 1st-clearest and 7th-windiest month. For the whole year in context, see Marrero's year-round climate.

Daytime high
77°
6th warmest
Overnight low
65°
7th coldest
Rainfall
3.5 in
8 wet days
Daylight
11 h 18 min
6:08 AM – 5:23 PM
Cloud cover
42%
1st clearest
Wind
8 mph
7th windiest
Solar energy
4.29 kWh/m²
Travel score
7.4
out of 10

Marrero is unincorporated suburban community and census-designated place in Jefferson Parish, Louisiana, United States.

Density
1,489/km²
people per km²

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 81°F in the first days to 74°F by the end.

A typical October day in Marrero reaches about 77°F in the afternoon and slips back to 65°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 71°F and 83°F. Set against its neighbours, October runs about 7°F cooler than September and about 8°F warmer than November.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18170
28170
38170
48169
58069
68069
78069
88068
97968
107968
117967
127967
137867
147866
157866
167865
177765
187765
197764
207664
217664
227664
237663
247563
257562
267562
277462
287461
297461
307361
317360

How October really feels in Marrero

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.

Marrero weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan61° / 48°4.49.710.35.1
Feb64° / 51°4.28.810.95.8
Mar69° / 57°4.59.411.86.6
Apr75° / 63°3.98.412.77.2
May82° / 70°3.69.213.56.5
Jun86° / 76°5.215.213.94.4
Jul88° / 78°5.617.913.73.7
Aug87° / 78°6.317.413.13.8
Sep84° / 74°4.912.812.25.2
Oct77° / 65°3.5811.37.4
Nov69° / 56°3.37.310.57.0
Dec63° / 51°3.89.210.15.7

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in October, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 33%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26832
36832
46733
56733
66733
76733
86733
96733
106733
116733
126733
136733
146832
156832
166832
176832
186832
196733
206733
216733
226634
236634
246634
256634
266634
276634
286535
296535
306535
316535

Chance of precipitation in October

Any precipitation

Marrero gets around 3.5 in of rain over 8 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 26% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
130
230
329
429
528
628
728
828
928
1027
1127
1226
1326
1425
1524
1624
1724
1824
1923
2023
2123
2223
2324
2424
2524
2624
2724
2824
2925
3025
3125

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the muggy band about 22% of days. Sticky, muggy-or-worse air turns up on roughly 47% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
19121220388
29131320378
310131421367
410131421347
511141521337
611141522326
712141622316
812151622296
913151622286
1013161623275
1114161723255
1215171723245
1316171723234
1417181723224
1518181822204
1619181822203
1720181822193
1821181822182
1923181822172
2024181821162
2125181821162
2226181821152
2328181821141
2429171821141
2530171821131
2631161821121
2732161821121
2834161821110
2935151722110
3036151721100
313715172190

Wind in October

Winds average 8 mph in October.

Across October, daily wind ranges from about 8 mph on the calmest days to 9 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
309light breeze
319light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 42 min at the start of October to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over October. Sunrise moves from 5:58 AM to 6:19 AM, and sunset from 5:41 PM to 5:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:585:41
211.75:595:40
311.75:595:38
411.66:005:37
511.66:005:36
611.66:015:35
711.56:025:34
811.56:025:32
911.56:035:31
1011.46:045:30
1111.46:045:29
1211.46:055:28
1311.46:065:27
1411.36:065:26
1511.36:075:24
1611.36:085:23
1711.26:085:22
1811.26:095:21
1911.26:105:20
2011.16:105:19
2111.16:115:18
2211.16:125:17
2311.16:125:16
2411.06:135:15
2511.06:145:14
2611.06:155:14
2711.06:155:13
2810.96:165:12
2910.96:175:11
3010.96:185:10
3110.86:195:09

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.29 kWh/m².

For context, solar energy here swings from a low near 2.73 kWh/m² to a high of 6.23 kWh/m² in May across the year — October's 4.29 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.1Bright
244.1Bright
254.1Bright
264.0Bright
274.0Moderate
284.0Moderate
293.9Moderate
303.9Moderate
313.9Moderate
Planning a trip in October

Hazard calendar for Marrero

In seasonPeak

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

Marrero 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 October a good time to visit Marrero?

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

7.4
Sightseeing
1st-best month of the year
6.7
Beach & pool
2nd-best month of the year

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

What to pack for Marrero in October

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

In October, Marrero sees daytime highs around 77°F and nights near 65°F. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

Sea temperature near Marrero in October

The nearest coast averages about 76°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 16 mi away) is warmest in August at about 86°F and coldest in January near 58°F.

It's comfortable for a long swim from Apr 5 to Nov 13 — about 7.3 months when the water holds above 68°F.

50°60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan58Bracing
Feb58Bracing
Mar64Cool
Apr71Refreshing
May78Warm
Jun84Tropical
Jul86Tropical
Aug86Tropical
Sep83Tropical
Oct76Warm
Nov67Cool
Dec61Cool

UV index in Marrero in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 Marrero peaks around July 11 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 11UV 10Dec 19UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr10Very high
May10Very high
Jun10Extreme
Jul10Extreme
Aug9Very high
Sep8Very high
Oct6High
Nov5Moderate
Dec4Moderate

Air quality in Marrero 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 Marrero is worst in July — around 22 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (November, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1621 µg/m³Nov 238 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar10Good
Apr10Good
May13Moderate
Jun18Moderate
Jul22Moderate
Aug17Moderate
Sep11Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Marrero?

Marrero sits at 29.9°N, 90.1°W, 3 ft above sea level, in United States. The nearest listed city is Harvey, 1.2 mi away.

Topography around Marrero

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

Within 2 miles, the terrain around Marrero has only modest variations in elevation — a maximum elevation change of 62 ft around an average of 7 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 164 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 230 ft.

The land around Marrero is covered by artificial surfaces (57%) and grassland (21%) within 2 miles, artificial surfaces (29%) and trees (25%) within 10 miles, and water (40%), trees (29%) and wetland (20%) within 50 miles.

2 miles
62 ft
10 miles
164 ft
50 miles
230 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: Harvey 1.2 mi · Gretna 3.1 mi · Estelle 3.7 mi · New Orleans 4.3 mi · Terrytown 4.3 mi · Metairie 6.8 mi · Metairie Terrace 6.8 mi · Chalmette 8.7 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 Marrero (29.8994°, -90.1004°, elevation 3 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).