Dax weather in July

In July, Dax sees average daytime highs of 27°C and overnight lows near 17°C, with 51 mm of rain across 8.6 wet days and about 14.9 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 39% of the time in July, and the air most often feels humid.

Daylight stretches from about 15 h 12 min at the start of July to 14 h 30 min by month's end. Set against the rest of the year, July is Dax's 2nd-clearest and 10th-windiest month. For the whole year in context, see Dax's year-round climate.

Daytime high
27°
2nd warmest
Overnight low
17°
12th coldest
Rainfall
51 mm
8.6 wet days
Daylight
15 hours
5:41 AM – 8:39 PM
Cloud cover
50%
2nd clearest
Wind
9 km/h
10th windiest
Solar energy
6.03 kWh/m²
Travel score
6.9
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 July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 28°C by the end.

A typical July day in Dax reaches about 27°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 32°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12616
22616
32616
42616
52616
62616
72616
82616
92616
102616
112616
122716
132716
142716
152717
162717
172717
182717
192717
202717
212717
222717
232817
242817
252817
262817
272817
282817
292817
302817
312817

Dax weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 12th-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 21% of July, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25545
35545
45545
55545
65545
75545
85545
95644
105644
115743
125743
135941
145941
156040
166040
176139
186139
196238
206238
216337
226337
236337
246436
256436
266436
276436
286436
296436
306535
316436

Chance of precipitation in July

Any precipitation

Dax gets around 51 mm of rain over 8.6 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 31% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
130
231
331
431
531
631
731
830
930
1029
1128
1227
1327
1426
1526
1625
1725
1825
1925
2025
2125
2225
2325
2424
2524
2624
2724
2824
2924
3024
3124

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the humid band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 16% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11539379
21439379
314393810
413393810
513393810
613383811
713383811
812373912
912373912
1012363913
1112354013
1211344014
1311344115
1411334115
1510324216
1610314317
179304417
189294418
198284518
207284619
217274619
226274719
236274720
245274820
255274820
265274820
274274820
284284820
294284721
304284721
314284721

Wind in July

Winds average 9 km/h in July.

Across July, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 12 min at the start of July to 14 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over July. Sunrise moves from 5:31 AM to 5:56 AM, and sunset from 8:44 PM to 8:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.25:318:44
215.25:318:44
315.25:328:44
415.25:328:44
515.25:338:44
615.25:348:43
715.15:348:43
815.15:358:43
915.15:368:42
1015.15:368:42
1115.15:378:41
1215.15:388:41
1315.05:398:40
1415.05:398:40
1515.05:408:39
1615.05:418:39
1714.95:428:38
1814.95:438:37
1914.95:448:36
2014.85:458:36
2114.85:468:35
2214.85:478:34
2314.85:488:33
2414.75:498:32
2514.75:508:31
2614.75:518:30
2714.65:528:29
2814.65:538:28
2914.65:548:27
3014.55:558:26
3114.55:568:25

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.03 kWh/m².

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 — July's 6.03 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.0Intense
246.0Intense
256.0Intense
266.0Bright
276.0Bright
285.9Bright
295.9Bright
305.9Bright
315.8Bright
Planning a trip in July

Is July a good time to visit Dax?

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

6.9
Sightseeing
2nd-best month of the year
7.0
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Dax for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Dax in July

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

In July, Dax sees daytime highs around 27°C and nights near 17°C. Pack sun protection. Worth having: light clothes and rain gear. About 9 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Dax in July

The nearest coast averages about 21°C in July — 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 July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 (very high — sun protection essential). 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
July 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).