Biarritz weather in January

In January, Biarritz sees average daytime highs of 12°C and overnight lows near 7°C, with 123 mm of precipitation across 14.1 wet days and about 9.1 hours of daylight. It is the 12th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 12°C through the month. The sky is clear or mostly clear about 20% 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 Biarritz's 11th-clearest and 3rd-windiest month. For the whole year in context, see Biarritz's year-round climate.

Daytime high
12°
12th warmest
Overnight low
2nd coldest
Precipitation
123 mm
14.1 wet days
Daylight
9 h 06 min
8:42 AM – 5:49 PM
Cloud cover
68%
11th clearest
Wind
14 km/h
3rd windiest
Solar energy
1.59 kWh/m²
Travel score
2.7
out of 10

Biarritz is human settlement in France.

Air quality
Good
PM2.5 6.5 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 12°C through the month.

A typical January day in Biarritz reaches about 12°C in the afternoon and slips back to 7°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 16°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1127
2127
3127
4127
5127
6127
7127
8127
9127
10127
11127
12127
13127
14127
15127
16127
17127
18127
19127
20127
21117
22117
23117
24117
25117
26117
27116
28116
29126
30126
31126

Biarritz weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 12314.19.12.7
Feb12° / 10612.710.22.9
Mar14° / 9812.811.64.0
Apr16° / 10°10614.213.24.4
May19° / 13°9613.114.55.6
Jun21° / 16°7610.715.26.4
Jul23° / 18°6410.314.97.0
Aug24° / 18°6510.213.87.2
Sep22° / 16°8811.412.36.5
Oct19° / 14°11412.810.85.7
Nov15° / 10°16214.99.53.9
Dec12° / 13414.18.83.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23466
33466
43565
53664
63664
73664
83565
93565
103664
113664
123565
133565
143565
153565
163565
173565
183466
193466
203466
213367
223268
233268
243268
253268
263268
273367
283367
293367
303367
313367

Chance of precipitation in January

Any precipitation

Biarritz gets around 123 mm of rain and snow over 14.1 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 45% and peaks near 47% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202531
Rain chance (%)
145
245
345
445
545
644
744
844
944
1044
1144
1244
1344
1444
1545
1645
1745
1846
1946
2046
2147
2247
2347
2447
2547
2647
2746
2846
2946
3045
3145

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 14 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
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light 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 8:45 AM to 8:32 AM, and sunset from 5:34 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.88:455:34
28.88:455:35
38.88:455:36
48.98:455:36
58.98:455:37
68.98:455:38
78.98:455:39
88.98:455:40
98.98:455:41
109.08:445:42
119.08:445:43
129.08:445:44
139.08:435:45
149.18:435:46
159.18:435:48
169.18:425:49
179.18:425:50
189.28:415:51
199.28:415:52
209.28:405:53
219.28:405:55
229.38:395:56
239.38:385:57
249.38:385:58
259.48:376:00
269.48:366:01
279.48:356:02
289.58:346:03
299.58:346:05
309.68:336:06
319.68:326:07

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.59 kWh/m².

For context, solar energy here swings from a low near 1.38 kWh/m² to a high of 6.08 kWh/m² in June across the year — January's 1.59 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.4Dim
21.4Dim
31.4Dim
41.4Dim
51.5Dim
61.5Dim
71.5Dim
81.5Dim
91.5Dim
101.5Dim
111.5Dim
121.5Dim
131.6Dim
141.6Dim
151.6Dim
161.6Dim
171.6Dim
181.6Dim
191.6Dim
201.6Dim
211.7Dim
221.7Dim
231.7Dim
241.7Dim
251.8Dim
261.8Dim
271.8Dim
281.8Dim
291.9Dim
301.9Dim
311.9Dim
Planning a trip in January

Is January a good time to visit Biarritz?

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

2.7
Sightseeing
12th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Biarritz.

What to pack for Biarritz in January

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

In January, Biarritz sees daytime highs around 12°C and nights near 7°C. Pack a warm layer and rain gear. About 14 days see rain.

a warm layerrain gear

Sea temperature near Biarritz in January

The nearest coast averages about 13°C 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 17 km away) is warmest in August at about 22°C and coldest in February near 12°C.

It's comfortable for a long swim from Jul 1 to Sep 24 — about 2.8 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May16Cool
Jun19Cool
Jul21Refreshing
Aug22Refreshing
Sep21Refreshing
Oct18Cool
Nov16Cool
Dec14Bracing

UV index in Biarritz 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 Biarritz peaks around July 16 at about 8 (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 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr6High
May6High
Jun8Very high
Jul8Very high
Aug8Very high
Sep5High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Biarritz?

Biarritz sits at 43.5°N, 1.6°W, 39 m above sea level, in France. The nearest listed city is Anglet, 3.0 km away.

Topography around Biarritz

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

Within 3 km, the terrain around Biarritz has only modest variations in elevation — a maximum elevation change of 91 m around an average of 28 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 231 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,044 m.

The land around Biarritz is covered by water (43%) and artificial surfaces (30%) within 3 km, water (47%) and trees (30%) within 16 km, and trees (46%) and water (25%) within 80 km.

3 km
91 m
16 km
231 m
80 km
2,044 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Anglet 3.0 km · Bayonne 7.0 km · Hondarribia 23 km · Irun 25 km · Errenteria 34 km · Pasaia 35 km · San Sebastian 39 km · Hernani 41 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 Biarritz (43.4806°, -1.5568°, elevation 39 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. 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).