Fontana weather in September

In September, Fontana sees average daytime highs of 25°C and overnight lows near 14°C, with 106 mm of rain across 8.5 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 52% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Fontana's 2nd-clearest and 1st-windiest month. For the whole year in context, see Fontana's year-round climate.

Daytime high
25°
8th warmest
Overnight low
14°
4th coldest
Rainfall
106 mm
8.5 wet days
Daylight
11 h 48 min
6:55 AM – 6:46 PM
Cloud cover
43%
2nd clearest
Wind
14 km/h
1st windiest
Solar energy
4.76 kWh/m²
Travel score
7.4
out of 10

Fontana is municipality in Argentina.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical September day in Fontana reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 32°C. Set against its neighbours, September runs about 2°C warmer than August and about 2°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12413
22413
32514
42514
52514
62514
72514
82514
92514
102514
112514
122514
132514
142514
152514
162514
172514
182514
192514
202514
212515
222515
232515
242515
252515
262615
272615
282615
292615
302616

How September really feels in Fontana

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 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
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Fontana weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°13810.713.54.0
Feb31° / 22°13010.5134.4
Mar30° / 20°13110.512.25.3
Apr26° / 18°1669.711.46.8
May23° / 14°1028.110.77.2
Jun21° / 12°677.510.36.9
Jul21° / 11°606.910.47.1
Aug23° / 12°656.2117.8
Sep25° / 14°1068.511.87.4
Oct27° / 17°18010.712.76.5
Nov29° / 19°1649.513.45.7
Dec31° / 21°1471013.74.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16832
26832
36733
46733
56634
66634
76535
86535
96436
106436
116436
126337
136337
146337
156337
166238
176238
186238
196238
206238
216139
226139
236040
246040
255941
265941
275842
285743
295743
305644

Chance of precipitation in September

Any precipitation

Fontana gets around 106 mm of rain over 8.5 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 28% and peaks near 32% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
123
223
323
423
524
624
725
825
925
1026
1127
1227
1328
1428
1529
1629
1729
1829
1930
2030
2130
2231
2331
2431
2531
2632
2732
2832
2932
3032

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 46% 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 (%)
152211980
251211990
351211990
451211990
551211990
651211990
752211890
8502218100
9502218100
10512217100
11502317100
12502317100
13492317100
14492317101
15482417111
16482417111
17482416111
18472416111
19472416111
20462516121
21452517121
22442517131
23432418131
24422418142
25412419152
26402420152
27392420162
28372320172
29372320172
30352321183

Wind in September

Winds average 14 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 14 km/h on the calmest days to 14 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
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 24 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over September. Sunrise moves from 7:13 AM to 6:39 AM, and sunset from 6:39 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.47:136:39
211.57:126:39
311.57:116:40
411.57:106:40
511.57:086:41
611.67:076:41
711.67:066:42
811.67:056:42
911.67:046:42
1011.77:026:43
1111.77:016:43
1211.77:006:44
1311.86:596:44
1411.86:586:45
1511.86:566:45
1611.86:556:46
1711.96:546:46
1811.96:536:47
1911.96:526:47
2012.06:506:48
2112.06:496:48
2212.06:486:48
2312.06:476:49
2412.16:466:49
2512.16:446:50
2612.16:436:50
2712.16:426:51
2812.26:416:51
2912.26:406:52
3012.26:396:52

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.76 kWh/m².

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 6.85 kWh/m² in December across the year — September's 4.76 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.6Bright
94.6Bright
104.6Bright
114.7Bright
124.7Bright
134.7Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.1Bright
305.1Bright
Planning a trip in September

Is September a good time to visit Fontana?

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

7.4
Sightseeing
2nd-best month of the year
6.6
Beach & pool
6th-best month of the year

September is one of the better times to visit Fontana for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Fontana in September

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

In September, Fontana sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Fontana in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fontana peaks around January 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighExtremeJan 22UV 14Jun 21UV 4
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr8Very high
May5High
Jun4Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct5High
Nov12Extreme
Dec13Extreme

Air quality in Fontana in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Fontana is worst in September — around 18 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (May, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 918 µg/m³May 127 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar9Good
Apr7Good
May7Good
Jun8Good
Jul12Good
Aug17Moderate
Sep18Moderate
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is Fontana?

Fontana sits at 27.4°S, 59.0°W, 49 m above sea level, in Argentina. The nearest listed city is Resistencia, 7.0 km away.

Topography around Fontana

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

Within 3 km, the terrain around Fontana has only modest variations in elevation — a maximum elevation change of 18 m around an average of 52 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 30 m; within 80 km, only modest variations in elevation — a maximum elevation change of 49 m.

The land around Fontana is covered by trees (42%) and artificial surfaces (30%) within 3 km, trees (45%) and grassland (31%) within 16 km, and trees (44%) and grassland (40%) within 80 km.

3 km
18 m
16 km
30 m
80 km
49 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Resistencia 7.0 km · Barranqueras 12 km · Corrientes 21 km · San Luis del Palmar 48 km · San Lorenzo 84 km · Pilar 96 km · Saladas 101 km · General José de San Martín 103 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus Christ 1%

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 Fontana (-27.4204°, -59.0373°, elevation 49 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).