Chalmette weather in January

In January, Chalmette sees average daytime highs of 61°F and overnight lows near 48°F, with 4.4 in of rain across 9.7 wet days and about 10.3 hours of daylight. It is the 12th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 61°F through the month. The sky is clear or mostly clear about 36% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 06 min at the start of January to 10 h 36 min by month's end. Set against the rest of the year, January is Chalmette's 8th-clearest and 1st-windiest month. For the whole year in context, see Chalmette's year-round climate.

Daytime high
61°
12th warmest
Overnight low
48°
1st coldest
Rainfall
4.4 in
9.7 wet days
Daylight
10 h 18 min
7:01 AM – 5:17 PM
Cloud cover
56%
8th clearest
Wind
10 mph
1st windiest
Solar energy
2.98 kWh/m²
Travel score
5.1
out of 10

Chalmette is unincorporated suburban community and census-designated place in St. Bernard Parish, Louisiana, United States.

Density
813/km²
people per km²

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 61°F through the month.

A typical January day in Chalmette reaches about 61°F in the afternoon and slips back to 48°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 49°F and 71°F. Set against its neighbours, January runs about 2°F cooler than December and about 3°F cooler than February.

30°40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
16149
26149
36149
46149
56149
66149
76048
86048
96048
106048
116048
126048
136048
146048
156148
166148
176148
186148
196148
206148
216148
226148
236148
246148
256148
266148
276148
286149
296149
306149
316249

How January really feels in Chalmette

Once humidity and wind are folded in, January 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

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

Chalmette weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 6th-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34555
44555
54654
64654
74555
84753
94753
104852
114852
124852
134852
145050
155050
165050
175050
185050
195050
205050
215050
224951
234951
244951
254852
264852
274753
284753
294654
304654
314654

Chance of precipitation in January

Any precipitation

Chalmette gets around 4.4 in of rain over 9.7 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
331
431
531
631
731
831
931
1032
1132
1232
1332
1432
1532
1632
1732
1832
1932
2032
2132
2232
2332
2432
2532
2632
2732
2832
2932
3032
3132

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 72% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
168131351
269131350
369131350
468141350
567141450
667141450
769131350
869131350
969131350
1070131250
1170131250
1271131150
1371141140
1471141140
1572131050
1673131040
177413940
187413940
197413940
207513840
217513840
227513840
237612840
247612840
257612840
267612840
277612840
287612840
297612840
307612840
317612840

Wind in January

Winds average 10 mph in January, the windiest month of the year.

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

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light 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 January

DaylightNight

Daylight runs from about 10 h 06 min at the start of January to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 7:00 AM to 6:57 AM, and sunset from 5:06 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.17:005:06
210.17:005:07
310.17:005:07
410.17:015:08
510.17:015:09
610.17:015:10
710.27:015:10
810.27:015:11
910.27:015:12
1010.27:015:13
1110.27:015:13
1210.27:015:14
1310.27:015:15
1410.27:015:16
1510.37:015:16
1610.37:015:17
1710.37:015:18
1810.37:015:19
1910.37:015:20
2010.37:005:21
2110.47:005:21
2210.47:005:22
2310.47:005:23
2410.46:595:24
2510.46:595:25
2610.46:595:26
2710.56:585:26
2810.56:585:27
2910.56:585:28
3010.56:575:29
3110.66:575:30

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.98 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 — January's 2.98 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.7Moderate
42.7Moderate
52.8Moderate
62.8Moderate
72.8Moderate
82.8Moderate
92.8Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.9Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
183.0Moderate
193.1Moderate
203.1Moderate
213.1Moderate
223.1Moderate
233.1Moderate
243.1Moderate
253.2Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.2Moderate
313.3Moderate
Planning a trip in January

Hazard calendar for Chalmette

In seasonPeak

None of Chalmette's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Chalmette 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 January a good time to visit Chalmette?

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

5.1
Sightseeing
9th-best month of the year
0.7
Beach & pool
12th-best month of the year

January is a reasonable time to visit Chalmette for sightseeing.

What to pack for Chalmette in January

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

In January, Chalmette sees daytime highs around 61°F and nights near 48°F. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Chalmette in January

The nearest coast averages about 57°F in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 mi away) is warmest in August at about 86°F and coldest in January near 57°F.

It's comfortable for a long swim from Apr 5 to Nov 10 — about 7.2 months when the water holds above 68°F.

50°60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan57Bracing
Feb58Bracing
Mar64Cool
Apr71Refreshing
May78Warm
Jun84Tropical
Jul86Tropical
Aug86Tropical
Sep83Tropical
Oct75Warm
Nov67Cool
Dec60Cool

UV index in Chalmette in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chalmette 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 Chalmette in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Chalmette 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 Chalmette?

Chalmette sits at 29.9°N, 90.0°W, 3 ft above sea level, in United States. The nearest listed city is Terrytown, 4.3 mi away.

Topography around Chalmette

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

Within 2 miles, the terrain around Chalmette has only modest variations in elevation — a maximum elevation change of 39 ft around an average of 3 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 151 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 243 ft.

The land around Chalmette is covered by artificial surfaces (32%), grassland (27%) and water (20%) within 2 miles, artificial surfaces (23%), water (23%) and trees (22%) within 10 miles, and water (44%) and trees (28%) within 50 miles.

2 miles
39 ft
10 miles
151 ft
50 miles
243 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Terrytown 4.3 mi · Gretna 5.6 mi · New Orleans 6.8 mi · Harvey 7.5 mi · Marrero 8.7 mi · Estelle 11 mi · Metairie 12 mi · Metairie Terrace 12 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 Chalmette (29.943°, -89.9654°, 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).