Frontignan weather in September

In September, Frontignan sees average daytime highs of 23°C and overnight lows near 17°C, with 108 mm of rain across 6.8 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 21°C by the end. The sky is clear or mostly clear about 53% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Frontignan's 4th-clearest and 11th-windiest month. For the whole year in context, see Frontignan's year-round climate.

Daytime high
23°
4th warmest
Overnight low
17°
9th coldest
Rainfall
108 mm
6.8 wet days
Daylight
12 h 18 min
6:31 AM – 6:48 PM
Cloud cover
41%
4th clearest
Wind
14 km/h
11th windiest
Solar energy
4.62 kWh/m²
Travel score
7.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 21°C by the end.

A typical September day in Frontignan reaches about 23°C in the afternoon and slips back to 17°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 25°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12418
22418
32418
42418
52418
62418
72418
82418
92318
102317
112317
122317
132317
142317
152317
162217
172217
182217
192216
202216
212216
222216
232216
242116
252116
262116
272116
282116
292116
302115

Frontignan weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 828.79.12.9
Feb12° / 506.210.23.3
Mar14° / 566.611.64.5
Apr16° / 10°708.213.25.4
May19° / 14°586.914.56.7
Jun23° / 17°304.515.28.0
Jul26° / 20°162.814.98.4
Aug26° / 20°314.713.88.0
Sep23° / 17°1086.812.37.6
Oct19° / 14°14111.710.85.9
Nov15° / 10°12411.59.54.3
Dec12° / 789.28.83.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17228
27228
37327
47327
57228
67228
77228
87228
97228
107129
117129
127030
137030
146931
156931
166733
176733
186634
196634
206634
216535
226535
236436
246337
256337
266337
276337
286337
296337
306337

Chance of precipitation in September

Any precipitation

Frontignan gets around 108 mm of rain over 6.8 wet days in September. 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 29% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
117
218
318
419
519
620
720
820
920
1021
1121
1221
1322
1422
1522
1623
1723
1823
1923
2024
2124
2224
2325
2425
2526
2626
2727
2827
2928
3029

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1262427221
2272427211
3282428201
4292428191
5292429180
6302429170
7302429170
8312429160
9312429160
10312429150
11322529150
12322529140
13322529140
14332528140
15332628130
16342628120
17342727120
18342827110
19352926100
2035292690
2135302690
2236312580
2336322580
2436322570
2537332460
2637332460
2738332450
2839332350
2940322350
3041322340

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
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
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over September. Sunrise moves from 6:13 AM to 6:47 AM, and sunset from 7:16 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:137:16
213.06:147:14
312.96:167:12
412.96:177:11
512.86:187:09
612.86:197:07
712.76:207:05
812.76:217:03
912.66:227:01
1012.66:246:59
1112.56:256:58
1212.56:266:56
1312.46:276:54
1412.46:286:52
1512.36:296:50
1612.36:316:48
1712.26:326:46
1812.26:336:44
1912.16:346:42
2012.16:356:40
2112.06:366:39
2212.06:376:37
2311.96:396:35
2411.96:406:33
2511.86:416:31
2611.86:426:29
2711.76:436:27
2811.76:456:25
2911.66:466:24
3011.66:476:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.62 kWh/m².

For context, solar energy here swings from a low near 1.54 kWh/m² to a high of 7.14 kWh/m² in July across the year — September's 4.62 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.4Bright
35.3Bright
45.3Bright
55.2Bright
65.2Bright
75.1Bright
85.0Bright
95.0Bright
104.9Bright
114.9Bright
124.8Bright
134.8Bright
144.7Bright
154.6Bright
164.6Bright
174.5Bright
184.5Bright
194.4Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.0Bright
274.0Moderate
283.9Moderate
293.9Moderate
303.8Moderate
Planning a trip in September

Hazard calendar for Frontignan

In seasonPeak

In September, Frontignan sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Frontignan's rainy season runs April–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Frontignan?

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

7.6
Sightseeing
4th-best month of the year
5.5
Beach & pool
4th-best month of the year

September is one of the better times to visit Frontignan for general sightseeing.

What to pack for Frontignan in September

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

In September, Frontignan sees daytime highs around 23°C and nights near 17°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near Frontignan in September

The nearest coast averages about 20°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 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 Jun 26 to Sep 17 — about 2.8 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May16Cool
Jun19Cool
Jul21Refreshing
Aug22Refreshing
Sep20Refreshing
Oct18Cool
Nov16Cool
Dec14Bracing

UV index in Frontignan in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Frontignan 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
Apr6High
May7High
Jun8Very high
Jul9Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Frontignan?

Frontignan sits at 43.4°N, 3.8°E, 4 m above sea level, in France. The nearest listed city is Sète, 7.0 km away.

Topography around Frontignan

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

Within 3 km, the terrain around Frontignan has only modest variations in elevation — a maximum elevation change of 212 m around an average of 24 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 332 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,562 m.

The land around Frontignan is covered by water (30%) and artificial surfaces (20%) within 3 km, water (55%) within 16 km, and trees (35%) and water (32%) within 80 km.

3 km
212 m
16 km
332 m
80 km
1,562 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Sète 7.0 km · Lattes 18 km · Montpellier 21 km · Castelnau-le-Lez 24 km · Agde 27 km · Mauguio 28 km · Lunel 40 km · Béziers 45 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 Frontignan (43.4477°, 3.7552°, elevation 4 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).