Dax weather in December

In December, Dax sees average daytime highs of 12°C and overnight lows near 5°C, with 91 mm of precipitation across 12.8 wet days and about 8.8 hours of daylight. It is the 11th-warmest and 2nd-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 21% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 hours at the start of December to 8 h 48 min by month's end. Set against the rest of the year, December is Dax's 12th-clearest and 1st-windiest month. For the whole year in context, see Dax's year-round climate.

Daytime high
12°
11th warmest
Overnight low
3rd coldest
Precipitation
91 mm
12.8 wet days
Daylight
8 h 48 min
8:38 AM – 5:23 PM
Cloud cover
68%
12th clearest
Wind
10 km/h
1st windiest
Solar energy
1.36 kWh/m²
Travel score
2.9
out of 10
Air quality
Good
PM2.5 8.7 µg/m³ · 2019

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 12°C through the month.

A typical December day in Dax reaches about 12°C in the afternoon and slips back to 5°C overnight — a 7°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, December runs about 3°C cooler than November and on par with January.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1136
2136
3136
4136
5126
6125
7125
8125
9125
10125
11125
12125
13125
14125
15125
16125
17125
18125
19125
20125
21125
22125
23125
24124
25124
26124
27124
28114
29114
30114
31114

Dax weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 8712.49.12.7
Feb13° / 7410.710.23.3
Mar16° / 751211.64.8
Apr18° / 9013.413.25.4
May21° / 12°8112.714.56.1
Jun25° / 15°669.215.26.9
Jul27° / 17°518.614.96.9
Aug27° / 17°578.513.86.9
Sep25° / 14°669.212.37.0
Oct20° / 11°8311.310.86.1
Nov15° / 10513.69.54.1
Dec12° / 9112.88.82.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33367
43367
53466
63565
73466
83565
93565
103565
113565
123565
133565
143565
153565
163565
173466
183466
193466
203268
213268
223268
233268
243268
253268
263367
273367
283367
293466
303466
313367

Chance of precipitation in December

Any precipitation

Dax gets around 91 mm of rain and snow over 12.8 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 41% and peaks near 45% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202531
Rain chance (%)
145
245
345
445
544
643
743
842
941
1041
1140
1240
1339
1439
1539
1638
1738
1838
1939
2039
2139
2240
2340
2441
2541
2641
2741
2842
2942
3042
3142

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in December

Winds average 10 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

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

Days shrink by about 12 minutes over December. Sunrise moves from 8:24 AM to 8:44 AM, and sunset from 5:23 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.08:245:23
29.08:265:23
38.98:275:23
48.98:285:23
58.98:295:23
68.98:305:22
78.98:305:22
88.88:315:22
98.88:325:22
108.88:335:22
118.88:345:22
128.88:355:22
138.88:365:22
148.88:365:23
158.88:375:23
168.88:385:23
178.78:385:23
188.78:395:24
198.78:405:24
208.78:405:24
218.78:415:25
228.78:415:25
238.78:425:26
248.78:425:26
258.78:425:27
268.78:435:27
278.78:435:28
288.88:435:29
298.88:445:29
308.88:445:30
318.88:445:31

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.36 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.36 kWh/m² to a high of 6.13 kWh/m² in June across the year — December's 1.36 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.5Dim
21.4Dim
31.4Dim
41.4Dim
51.4Dim
61.4Dim
71.4Dim
81.4Dim
91.4Dim
101.4Dim
111.4Dim
121.4Dim
131.4Dim
141.4Dim
151.4Dim
161.4Dim
171.4Dim
181.4Dim
191.4Dim
201.4Dim
211.4Dim
221.4Dim
231.4Dim
241.4Dim
251.4Dim
261.4Dim
271.4Dim
281.4Dim
291.4Dim
301.4Dim
311.4Dim
Planning a trip in December

Is December a good time to visit Dax?

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

2.9
Sightseeing
11th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Dax.

What to pack for Dax in December

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

In December, Dax sees daytime highs around 12°C and nights near 5°C. Pack a warm layer. Worth having: rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Dax in December

The nearest coast averages about 14°C 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 32 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 3 to Sep 23 — about 2.7 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 Dax in December

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Dax peaks around July 17 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 17UV 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 Dax?

Dax sits at 43.7°N, 1.1°W, 16 m above sea level, in France. The nearest listed city is Bayonne, 42 km away.

Topography around Dax

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

Within 3 km, the terrain around Dax has only modest variations in elevation — a maximum elevation change of 48 m around an average of 17 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 168 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,044 m.

The land around Dax is covered by trees (37%), artificial surfaces (33%) and grassland (20%) within 3 km, trees (52%), cropland (24%) and grassland (21%) within 16 km, and trees (45%) and grassland (20%) within 80 km.

3 km
48 m
16 km
168 m
80 km
2,044 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Bayonne 42 km · Anglet 45 km · Biarritz 48 km · Mont-de-Marsan 49 km · Hondarribia 71 km · Pau 72 km · Irun 72 km · Errenteria 82 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 Dax (43.7103°, -1.0537°, elevation 16 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).