Seguin weather in January

In January, Seguin sees average daytime highs of 63°F and overnight lows near 43°F, with 2.4 in of rain across 7.1 wet days and about 10.3 hours of daylight. It is the 12th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 63°F through the month. The sky is clear or mostly clear about 37% 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 Seguin's 9th-clearest and 5th-windiest month. For the whole year in context, see Seguin's year-round climate.

Daytime high
63°
12th warmest
Overnight low
43°
1st coldest
Rainfall
2.4 in
7.1 wet days
Daylight
10 h 18 min
7:32 AM – 5:50 PM
Cloud cover
55%
9th clearest
Wind
8 mph
5th windiest
Solar energy
3 kWh/m²
Travel score
6.0
out of 10

Seguin is city in and county seat of Guadalupe County, Texas, United States.

Density
310/km²
people per km²
Founded
1838

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 63°F through the month.

A typical January day in Seguin reaches about 63°F in the afternoon and slips back to 43°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 48°F and 75°F. Set against its neighbours, January runs about 1°F cooler than December and about 4°F cooler than February.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
16243
26243
36243
46243
56243
66243
76243
86243
96243
106243
116343
126343
136343
146343
156343
166343
176343
186343
196343
206344
216444
226444
236444
246444
256444
266444
276444
286444
296444
306444
316444

How January really feels in Seguin

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.

Seguin weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan63° / 43°2.47.110.36.0
Feb67° / 47°2.27.110.96.6
Mar73° / 54°2.88.611.87.1
Apr80° / 60°2.98.112.76.8
May87° / 68°4.110.113.54.9
Jun92° / 74°2.68.813.93.5
Jul95° / 75°1.86.813.72.7
Aug96° / 76°2.06.113.12.4
Sep90° / 71°2.88.812.24.0
Oct82° / 62°3.17.611.36.6
Nov72° / 52°2.77.110.57.2
Dec65° / 45°2.57.610.16.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34654
44654
54555
64555
74555
84654
94753
104753
114654
124654
134753
144753
154753
164852
174951
184852
194951
204951
214951
224951
234951
245050
255050
265050
275050
284951
294951
304852
314852

Chance of precipitation in January

Any precipitation

Seguin gets around 2.4 in of rain over 7.1 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 23% and peaks near 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
122
222
322
422
522
622
722
822
922
1022
1122
1222
1322
1423
1523
1623
1723
1823
1924
2024
2124
2224
2324
2424
2524
2624
2724
2824
2924
3023
3123

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 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
185762
285762
384772
484772
585672
685672
786671
886671
986671
1086671
1185771
1285771
1386761
1486761
1586761
1686761
1785861
1885861
1986851
2086851
2186851
2285951
2385951
2485951
2585951
2684952
27831052
28831052
29831052
30831052
31831052

Wind in January

Winds average 8 mph in January.

Across January, daily wind ranges from about 8 mph on the calmest days to 8 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
308light breeze
318light 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 7:31 AM to 7:28 AM, and sunset from 5:39 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.17:315:39
210.17:315:40
310.17:315:40
410.27:325:41
510.27:325:42
610.27:325:42
710.27:325:43
810.27:325:44
910.27:325:45
1010.27:325:45
1110.27:325:46
1210.27:325:47
1310.37:325:48
1410.37:325:48
1510.37:325:49
1610.37:325:50
1710.37:325:51
1810.37:325:52
1910.37:325:52
2010.47:325:53
2110.47:315:54
2210.47:315:55
2310.47:315:56
2410.47:315:57
2510.57:305:57
2610.57:305:58
2710.57:305:59
2810.57:296:00
2910.57:296:01
3010.67:286:02
3110.67:286:02

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3 kWh/m².

For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 6.67 kWh/m² in July across the year — January's 3 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.8Moderate
22.8Moderate
32.8Moderate
42.8Moderate
52.8Moderate
62.9Moderate
72.9Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.9Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
183.0Moderate
193.0Moderate
203.1Moderate
213.1Moderate
223.1Moderate
233.1Moderate
243.1Moderate
253.1Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.2Moderate
313.3Moderate
Planning a trip in January

Is January a good time to visit Seguin?

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

6.0
Sightseeing
7th-best month of the year
1.6
Beach & pool
12th-best month of the year

January is a reasonable time to visit Seguin for sightseeing.

What to pack for Seguin in January

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

In January, Seguin sees daytime highs around 63°F and nights near 43°F. Worth packing: a warm layer. About 7 days see rain.

a warm layer

UV index in Seguin 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 Seguin peaks around August 10 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 highHighModerateAug 10UV 11Dec 20UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr10Very high
May10Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov5High
Dec4Moderate

Air quality in Seguin 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 Seguin is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (October, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Oct 246 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar9Good
Apr10Good
May15Moderate
Jun15Moderate
Jul18Moderate
Aug12Good
Sep10Good
Oct6Good
Nov6Good
Dec7Good
Location & terrain

Where is Seguin?

Seguin sits at 29.6°N, 98.0°W, 522 ft above sea level, in United States. The nearest listed city is New Braunfels, 13 mi away.

Topography around Seguin

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

Within 2 miles, the terrain around Seguin has only modest variations in elevation — a maximum elevation change of 157 ft around an average of 528 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 410 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,775 ft.

The land around Seguin is covered by grassland (30%), trees (29%) and artificial surfaces (29%) within 2 miles, grassland (48%), trees (29%) and cropland (20%) within 10 miles, and grassland (48%) and trees (42%) within 50 miles.

2 miles
157 ft
10 miles
410 ft
50 miles
1,775 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: New Braunfels 13 mi · Cibolo 16 mi · Schertz 19 mi · Universal City 20 mi · Converse 21 mi · San Marcos 22 mi · Live Oak 22 mi · Canyon Lake 28 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 Seguin (29.5688°, -97.9647°, elevation 522 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. 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).