Castres weather in January

In January, Castres sees average daytime highs of 8°C and overnight lows near 2°C, with 105 mm of precipitation across 13 wet days and about 9.1 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 8°C through the month. The sky is clear or mostly clear about 19% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 h 48 min at the start of January to 9 h 36 min by month's end. Set against the rest of the year, January is Castres's 12th-clearest and 5th-windiest month. For the whole year in context, see Castres's year-round climate.

Daytime high
12th warmest
Overnight low
2nd coldest
Precipitation
105 mm
13 wet days
Daylight
9 h 06 min
8:28 AM – 5:33 PM
Cloud cover
71%
12th clearest
Wind
13 km/h
5th windiest
Solar energy
1.48 kWh/m²
Travel score
1.2
out of 10
Air quality
Good
PM10 15.3 µg/m³ · 2019

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 8°C through the month.

A typical January day in Castres reaches about 8°C in the afternoon and slips back to 2°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 3°C and 12°C. Set against its neighbours, January runs about 1°C cooler than December and about 1°C cooler than February.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
182
282
382
482
582
682
782
882
982
1082
1182
1282
1382
1482
1582
1682
1782
1882
1982
2082
2182
2282
2382
2482
2582
2682
2782
2882
2982
3082
3182

How January really feels in Castres

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
wind chill below the day's low

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Castres weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 1051339.11.2
Feb / 8211.22.710.21.8
Mar13° / 8911.81.611.63.3
Apr15° / 103130.313.24.3
May19° / 10°10412.40.114.55.6
Jun23° / 13°7510015.26.8
Jul25° / 15°598.8014.97.3
Aug26° / 15°588.5013.87.2
Sep22° / 12°739.2012.36.8
Oct17° / 10°8211.5010.85.3
Nov12° / 10112.70.79.52.8
Dec / 10012.81.68.81.6

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 69%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
23070
33070
43070
53070
62971
73070
83070
93070
103070
113070
123169
133169
143169
153169
163169
173169
183169
193169
203169
213169
223169
233169
243169
253169
263169
273268
283268
293466
303466
313565

Chance of precipitation in January

Any precipitationSnow

Castres gets around 105 mm of rain and snow over 13 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 42% and peaks near 44% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1426
2426
3426
4426
5426
6417
7417
8417
9407
10407
11408
12408
13418
14419
15429
164210
174310
184310
194311
204411
214411
224412
234412
244412
254413
264313
274313
284213
294213
304113
314113

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 13 km/h in January.

Across January, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 48 min at the start of January to 9 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over January. Sunrise moves from 8:30 AM to 8:17 AM, and sunset from 5:18 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.88:305:18
28.88:305:19
38.88:305:20
48.88:305:21
58.98:305:22
68.98:305:23
78.98:305:24
88.98:305:25
98.98:305:26
109.08:305:27
119.08:295:28
129.08:295:29
139.08:295:30
149.08:285:31
159.18:285:32
169.18:285:33
179.18:275:34
189.18:275:35
199.28:265:37
209.28:255:38
219.28:255:39
229.38:245:40
239.38:245:42
249.38:235:43
259.48:225:44
269.48:215:45
279.48:205:47
289.58:205:48
299.58:195:49
309.58:185:51
319.68:175:52

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.48 kWh/m².

For context, solar energy here swings from a low near 1.28 kWh/m² to a high of 6.31 kWh/m² in July across the year — January's 1.48 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.3Dim
21.3Dim
31.3Dim
41.3Dim
51.3Dim
61.3Dim
71.4Dim
81.4Dim
91.4Dim
101.4Dim
111.4Dim
121.4Dim
131.4Dim
141.4Dim
151.4Dim
161.5Dim
171.5Dim
181.5Dim
191.5Dim
201.5Dim
211.6Dim
221.6Dim
231.6Dim
241.6Dim
251.7Dim
261.7Dim
271.7Dim
281.8Dim
291.8Dim
301.8Dim
311.9Dim
Planning a trip in January

Is January a good time to visit Castres?

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

1.2
Sightseeing
12th-best month of the year
0.0
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Castres.

What to pack for Castres in January

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

In January, Castres sees daytime highs around 8°C and nights near 2°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 13 days see rain.

a warm layera heavy coatrain gear

UV index in Castres in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Castres peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highHighModerateLowJul 16UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr5High
May7High
Jun8Very high
Jul9Very high
Aug8Very high
Sep5High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Castres 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 Castres is worst in March — around 15 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2015 µg/m³Jul 2110 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar15Moderate
Apr15Moderate
May12Good
Jun12Good
Jul10Good
Aug10Good
Sep10Good
Oct11Good
Nov11Good
Dec13Moderate
Location & terrain

Where is Castres?

Castres sits at 43.6°N, 2.2°E, 183 m above sea level, in France. The nearest listed city is Albi, 37 km away.

Topography around Castres

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Castres.

Within 3 km, the terrain around Castres has only modest variations in elevation — a maximum elevation change of 112 m around an average of 195 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 846 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,265 m.

The land around Castres is covered by trees (37%), artificial surfaces (25%) and grassland (22%) within 3 km, trees (47%), cropland (27%) and grassland (23%) within 16 km, and trees (45%) and cropland (29%) within 80 km.

3 km
112 m
16 km
846 m
80 km
1,265 m
treesshrubsgrasslandcroplandartificial surfaces
January weather nearby: Albi 37 km · Carcassonne 44 km · Balma 60 km · Toulouse 64 km · Blagnac 69 km · Cugnaux 73 km · Colomiers 73 km · Tournefeuille 74 km

France travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 77% of US
price level, 2025
GDP per capita
$48,986
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.3
per 100k, 2023
Road deaths
5.1
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 539
Religion
Roman Catholic 47%none 33%Muslim 4%Protestant 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 Castres (43.6053°, 2.2409°, elevation 183 m), 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).