New Iberia weather in December

In December, New Iberia sees average daytime highs of 64°F and overnight lows near 47°F, with 4.1 in of precipitation across 9.1 wet days and about 10.1 hours of daylight. It is the 11th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 66°F in the first days to 62°F by the end. The sky is clear or mostly clear about 36% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 12 min at the start of December to 10 h 06 min by month's end. Set against the rest of the year, December is New Iberia's 8th-clearest and 5th-windiest month. For the whole year in context, see New Iberia's year-round climate.

Daytime high
64°
11th warmest
Overnight low
47°
2nd coldest
Precipitation
4.1 in
9.1 wet days
Daylight
10 h 06 min
7:01 AM – 5:06 PM
Cloud cover
57%
8th clearest
Wind
8 mph
5th windiest
Solar energy
2.72 kWh/m²
Travel score
5.9
out of 10

New Iberia is seat of Iberia Parish, Louisiana, United States.

Density
1,055/km²
people per km²
Founded
1779

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 66°F in the first days to 62°F by the end.

A typical December day in New Iberia reaches about 64°F in the afternoon and slips back to 47°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 52°F and 75°F. Set against its neighbours, December runs about 6°F cooler than November and about 2°F warmer than January.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
16749
26749
36649
46648
56648
66648
76548
86548
96548
106548
116547
126447
136447
146447
156447
166447
176447
186447
196347
206347
216346
226346
236346
246346
256246
266246
276246
286246
296246
306246
316246

How December really feels in New Iberia

Once humidity and wind are folded in, December 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

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

New Iberia weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan62° / 45°4.79.410.35.4
Feb65° / 49°4.18.610.96.1
Mar71° / 54°4.29.111.86.8
Apr77° / 61°4.18.612.77.1
May84° / 68°3.49.713.55.9
Jun88° / 74°4.614.513.93.9
Jul89° / 76°5.01813.73.3
Aug89° / 76°4.817.513.13.3
Sep87° / 71°4.212.212.24.7
Oct80° / 62°3.67.811.37.1
Nov71° / 52°3.47.710.57.1
Dec64° / 47°4.19.110.15.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25446
35347
45347
55149
65050
75050
84951
94951
104951
114753
124753
134852
144852
154852
164852
174753
184852
194852
204852
214852
224753
234852
244753
254654
264555
274555
284555
294456
304456
314555

Chance of precipitation in December

Any precipitation

New Iberia gets around 4.1 in of rain and snow over 9.1 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 29% and peaks near 31% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
428
529
629
728
828
928
1028
1128
1228
1328
1428
1528
1628
1728
1829
1929
2029
2130
2230
2331
2431
2531
2631
2731
2831
2931
3031
3131

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 69% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1631213111
2651212101
3651212101
4651212101
5651212101
6651212101
7651212101
8661211101
966131191
1067131190
1167131190
1267131190
1368131180
1469131080
1569131080
1669131080
1770131070
1871121070
1970121071
2070121071
2171111071
2272111061
2372111061
2473101061
2573101061
2673101061
2773101061
2873101061
2972101161
3072101161
3172101161

Wind in December

Winds average 8 mph in December.

Across December, 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
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 12 min at the start of December to 10 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:51 AM to 7:08 AM, and sunset from 5:03 PM to 5:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.26:515:03
210.26:525:03
310.26:525:03
410.26:535:03
510.26:545:03
610.16:555:04
710.16:555:04
810.16:565:04
910.16:575:04
1010.16:575:04
1110.16:585:04
1210.16:595:05
1310.16:595:05
1410.17:005:05
1510.17:005:05
1610.17:015:06
1710.17:025:06
1810.17:025:07
1910.17:035:07
2010.17:035:07
2110.17:045:08
2210.17:045:08
2310.17:055:09
2410.17:055:09
2510.17:065:10
2610.17:065:10
2710.17:065:11
2810.17:075:11
2910.17:075:12
3010.17:075:13
3110.17:085:13

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.72 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.72 kWh/m² to a high of 6.23 kWh/m² in May across the year — December's 2.72 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
13.0Moderate
22.9Moderate
32.9Moderate
42.9Moderate
52.9Moderate
62.9Moderate
72.8Moderate
82.8Moderate
92.8Moderate
102.8Moderate
112.8Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.7Moderate
162.7Moderate
172.7Moderate
182.7Moderate
192.7Moderate
202.7Moderate
212.7Moderate
222.6Moderate
232.6Moderate
242.6Moderate
252.6Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.7Moderate
312.7Moderate
Planning a trip in December

Hazard calendar for New Iberia

In seasonPeak

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

New Iberia 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 December a good time to visit New Iberia?

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

5.9
Sightseeing
6th-best month of the year
1.9
Beach & pool
11th-best month of the year

December is a reasonable time to visit New Iberia for sightseeing.

What to pack for New Iberia in December

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

In December, New Iberia sees daytime highs around 64°F and nights near 47°F. Worth packing: rain gear. About 9 days see rain.

rain gear

Sea temperature near New Iberia in December

The nearest coast averages about 62°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 26 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 Mar 29 to Nov 15 — about 7.6 months when the water holds above 68°F.

60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan58Bracing
Feb60Cool
Mar65Cool
Apr72Refreshing
May78Warm
Jun84Tropical
Jul86Tropical
Aug86Tropical
Sep83Tropical
Oct76Warm
Nov68Cool
Dec62Cool

UV index in New Iberia in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 New Iberia peaks around July 13 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 13UV 11Dec 20UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr10Extreme
May10Extreme
Jun10Extreme
Jul11Extreme
Aug9Very high
Sep8Very high
Oct6High
Nov5Moderate
Dec4Moderate

Air quality in New Iberia in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in New Iberia is worst in July — around 22 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (February, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1521 µg/m³Feb 128 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb8Good
Mar10Good
Apr10Good
May14Moderate
Jun18Moderate
Jul22Moderate
Aug16Moderate
Sep12Good
Oct11Good
Nov10Good
Dec8Good
Location & terrain

Where is New Iberia?

New Iberia sits at 30.0°N, 91.8°W, 16 ft above sea level, in United States. The nearest listed city is Lafayette, 19 mi away.

Topography around New Iberia

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

Within 2 miles, the terrain around New Iberia has only modest variations in elevation — a maximum elevation change of 75 ft around an average of 23 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 187 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 187 ft.

The land around New Iberia is covered by trees (35%), artificial surfaces (28%) and grassland (24%) within 2 miles, cropland (39%), trees (25%) and grassland (20%) within 10 miles, and trees (35%) and water (22%) within 50 miles.

2 miles
75 ft
10 miles
187 ft
50 miles
187 ft
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Lafayette 19 mi · Opelousas 40 mi · Baton Rouge 48 mi · Prairieville 55 mi · Shenandoah 56 mi · Zachary 60 mi · Central 60 mi · Bayou Cane 69 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 New Iberia (30.0035°, -91.8187°, elevation 16 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).