Mar de Ajó weather in September

In September, Mar de Ajó sees average daytime highs of 13°C and overnight lows near 10°C, with 73 mm of rain across 7.2 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 13°C through the month. The sky is clear or mostly clear about 34% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Mar de Ajó's 8th-clearest and 5th-windiest month. For the whole year in context, see Mar de Ajó's year-round climate.

Daytime high: 13°; 9th warmest
Overnight low: 10°; 4th coldest
Rainfall: 73 mm; 7.2 wet days
Daylight: 11 h 48 min; 6:48 AM – 6:34 PM
Cloud cover: 57%; 8th clearest
Wind: 21 km/h; 5th windiest
Solar energy: 4.41 kWh/m²
Travel score: 4.1; out of 10

Mar de Ajó is human settlement in Argentina.

Founded: 1935

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

← August Mar de Ajó year-round climate October →Best places to visit in September

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 13°C through the month.

A typical September day in Mar de Ajó reaches about 13°C in the afternoon and slips back to 10°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 16°C. Set against its neighbours, September runs about 1°C warmer than August and about 3°C cooler than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	14	14	14	14	14	14	14	14	14	14	14	14	14	14
Avg low (°C)	9	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	11	11	11	11

	Avg high (°C)	Avg low (°C)
1	13	9
2	13	9
3	13	9
4	13	9
5	13	9
6	13	9
7	13	9
8	13	9
9	13	9
10	13	9
11	13	10
12	13	10
13	13	10
14	13	10
15	13	10
16	13	10
17	14	10
18	14	10
19	14	10
20	14	10
21	14	10
22	14	10
23	14	10
24	14	10
25	14	10
26	14	10
27	14	11
28	14	11
29	14	11
30	14	11

Mar de Ajó weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	23° / 19°	78	7.8	14.2	7.5
Feb	23° / 19°	84	7.8	13.4	7.3
Mar	22° / 18°	75	8.2	12.3	7.0
Apr	19° / 15°	91	7.8	11.1	6.4
May	16° / 12°	60	7.3	10.1	5.2
Jun	13° / 9°	73	7.1	9.5	3.8
Jul	11° / 8°	68	7.5	9.7	3.0
Aug	12° / 9°	75	6.9	10.6	3.5
Sep	13° / 10°	73	7.2	11.8	4.1
Oct	16° / 12°	87	9.2	12.9	5.2
Nov	19° / 15°	80	8.2	14	6.4
Dec	21° / 17°	64	8.1	14.5	7.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% 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 51%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	47	47	47	47	48	47	48	48	49	49	49	49	49	49	49	49	49	50	50	50	49	49	49	49	48	48	48	48	48	48
Cloudier (%)	53	53	53	53	52	53	52	52	51	51	51	51	51	51	51	51	51	50	50	50	51	51	51	51	52	52	52	52	52	52

	Clearer (%)	Cloudier (%)
1	47	53
2	47	53
3	47	53
4	47	53
5	48	52
6	47	53
7	48	52
8	48	52
9	49	51
10	49	51
11	49	51
12	49	51
13	49	51
14	49	51
15	49	51
16	49	51
17	49	51
18	50	50
19	50	50
20	50	50
21	49	51
22	49	51
23	49	51
24	49	51
25	48	52
26	48	52
27	48	52
28	48	52
29	48	52
30	48	52

Chance of precipitation in September

Any precipitation

Mar de Ajó gets around 73 mm of rain over 7.2 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 24% and peaks near 27% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	25	25	26	26	26	25	25	25	24	24	23	23	23	22	22	21	21	21	21	22	22	23	23	24	25	25	26	26	26	27

	Rain chance (%)
1	25
2	25
3	26
4	26
5	26
6	25
7	25
8	25
9	24
10	24
11	23
12	23
13	23
14	22
15	22
16	21
17	21
18	21
19	21
20	22
21	22
22	23
23	23
24	24
25	25
26	25
27	26
28	26
29	26
30	27

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	96	97	97	97	97	97	97	97	97	96	96	96	96	96	96	96	95	95	95	95	95	95	95	94	94	93	93	92	92	91
Comfortable (%)	4	3	3	3	3	3	3	3	3	4	4	4	4	4	4	4	5	5	5	5	5	5	5	6	6	7	7	8	8	9

	Dry (%)	Comfortable (%)
1	96	4
2	97	3
3	97	3
4	97	3
5	97	3
6	97	3
7	97	3
8	97	3
9	97	3
10	96	4
11	96	4
12	96	4
13	96	4
14	96	4
15	96	4
16	96	4
17	95	5
18	95	5
19	95	5
20	95	5
21	95	5
22	95	5
23	95	5
24	94	6
25	94	6
26	93	7
27	93	7
28	92	8
29	92	8
30	91	9

Wind in September

Winds average 21 km/h in September.

Across September, daily wind ranges from about 21 km/h on the calmest days to 22 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	22	22
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

	Wind speed (km/h)	Feels
1	21	breezy
2	21	breezy
3	21	breezy
4	21	breezy
5	21	breezy
6	21	breezy
7	21	breezy
8	21	breezy
9	21	breezy
10	21	breezy
11	21	breezy
12	21	breezy
13	21	breezy
14	21	breezy
15	21	breezy
16	21	breezy
17	21	breezy
18	21	breezy
19	21	breezy
20	21	breezy
21	21	breezy
22	21	breezy
23	21	breezy
24	21	breezy
25	21	breezy
26	21	breezy
27	21	breezy
28	21	breezy
29	22	breezy
30	22	breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 12 min at the start of September to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over September. Sunrise moves from 7:11 AM to 6:26 AM, and sunset from 6:22 PM to 6:46 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	11.2	11.2	11.3	11.3	11.3	11.4	11.4	11.5	11.5	11.5	11.6	11.6	11.6	11.7	11.7	11.8	11.8	11.8	11.9	11.9	12.0	12.0	12.1	12.1	12.1	12.2	12.2	12.3	12.3	12.3
Sunrise (AM)	7:11	7:10	7:08	7:07	7:05	7:04	7:02	7:00	6:59	6:57	6:56	6:54	6:53	6:51	6:50	6:48	6:46	6:45	6:43	6:42	6:40	6:39	6:37	6:35	6:34	6:32	6:31	6:29	6:28	6:26
Sunset (PM)	6:22	6:23	6:23	6:24	6:25	6:26	6:27	6:28	6:28	6:29	6:30	6:31	6:32	6:32	6:33	6:34	6:35	6:36	6:37	6:37	6:38	6:39	6:40	6:41	6:42	6:43	6:43	6:44	6:45	6:46

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.2	7:11	6:22
2	11.2	7:10	6:23
3	11.3	7:08	6:23
4	11.3	7:07	6:24
5	11.3	7:05	6:25
6	11.4	7:04	6:26
7	11.4	7:02	6:27
8	11.5	7:00	6:28
9	11.5	6:59	6:28
10	11.5	6:57	6:29
11	11.6	6:56	6:30
12	11.6	6:54	6:31
13	11.6	6:53	6:32
14	11.7	6:51	6:32
15	11.7	6:50	6:33
16	11.8	6:48	6:34
17	11.8	6:46	6:35
18	11.8	6:45	6:36
19	11.9	6:43	6:37
20	11.9	6:42	6:37
21	12.0	6:40	6:38
22	12.0	6:39	6:39
23	12.1	6:37	6:40
24	12.1	6:35	6:41
25	12.1	6:34	6:42
26	12.2	6:32	6:43
27	12.2	6:31	6:43
28	12.3	6:29	6:44
29	12.3	6:28	6:45
30	12.3	6:26	6:46

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.41 kWh/m².

For context, solar energy here swings from a low near 2.09 kWh/m² to a high of 7.65 kWh/m² in December across the year — September's 4.41 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	3.7	3.8	3.8	3.9	3.9	4.0	4.0	4.0	4.1	4.2	4.2	4.2	4.3	4.3	4.4	4.4	4.5	4.5	4.6	4.6	4.7	4.7	4.8	4.8	4.8	4.9	4.9	4.9	5.0	5.0
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.7	Moderate
2	3.8	Moderate
3	3.8	Moderate
4	3.9	Moderate
5	3.9	Moderate
6	4.0	Moderate
7	4.0	Bright
8	4.0	Bright
9	4.1	Bright
10	4.2	Bright
11	4.2	Bright
12	4.2	Bright
13	4.3	Bright
14	4.3	Bright
15	4.4	Bright
16	4.4	Bright
17	4.5	Bright
18	4.5	Bright
19	4.6	Bright
20	4.6	Bright
21	4.7	Bright
22	4.7	Bright
23	4.8	Bright
24	4.8	Bright
25	4.8	Bright
26	4.9	Bright
27	4.9	Bright
28	4.9	Bright
29	5.0	Bright
30	5.0	Bright

Planning a trip in September

Is September a good time to visit Mar de Ajó?

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

4.1

Sightseeing

9th-best month of the year

0.0

Beach & pool

9th-best month of the year

September is a reasonable time to visit Mar de Ajó for sightseeing.

What to pack for Mar de Ajó in September

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

In September, Mar de Ajó sees daytime highs around 13°C and nights near 10°C. Worth packing: a warm layer and a windbreaker. About 7 days see rain.

a warm layera windbreaker

Sea temperature near Mar de Ajó in September

The nearest coast averages about 12°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 February at about 22°C and coldest in July near 11°C.

It's comfortable for a long swim from Dec 18 to Mar 31 — about 3.4 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	22	22	21	19	16	13	11	11	12	15	17	20
Comfort	Refreshing	Refreshing	Refreshing	Cool	Cool	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool

	Sea temperature (°C)	Comfort
Jan	22	Refreshing
Feb	22	Refreshing
Mar	21	Refreshing
Apr	19	Cool
May	16	Cool
Jun	13	Bracing
Jul	11	Bracing
Aug	11	Bracing
Sep	12	Bracing
Oct	15	Bracing
Nov	17	Cool
Dec	20	Cool

UV index in Mar de Ajó 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 Mar de Ajó peaks around January 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	12	12	9	5	3	2	3	3	5	7	11	12
Level	Extreme	Extreme	Very high	High	Moderate	Moderate	Moderate	Moderate	High	Very high	Extreme	Extreme

	UV index (midday)	Level
Jan	12	Extreme
Feb	12	Extreme
Mar	9	Very high
Apr	5	High
May	3	Moderate
Jun	2	Moderate
Jul	3	Moderate
Aug	3	Moderate
Sep	5	High
Oct	7	Very high
Nov	11	Extreme
Dec	12	Extreme

Location & terrain

Where is Mar de Ajó?

Mar de Ajó sits at 36.7°S, 56.7°W, 24 m above sea level, in Argentina. The nearest listed city is Mar del Tuyú, 17 km away.

Topography around Mar de Ajó

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

Within 3 km, the terrain around Mar de Ajó has only modest variations in elevation — a maximum elevation change of 16 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 34 m; within 80 km, only modest variations in elevation — a maximum elevation change of 33 m.

The land around Mar de Ajó is covered by grassland (38%), water (33%) and artificial surfaces (20%) within 3 km, water (48%) and grassland (37%) within 16 km, and water (44%) and grassland (39%) within 80 km.

3 km

16 m

grassland 38%

16 km

34 m

water 48%

80 km

33 m

water 44%

treesgrasslandcroplandartificial surfacesbare terrainwaterwetland

← August Mar de Ajó year-round climate October →Best places to visit in September

September weather nearby: Mar del Tuyú 17 km · Santa Teresita 21 km · Pinamar 46 km · General Juan Madariaga 50 km · Villa Gesell 65 km · Dolores 100 km · Santa Clara del Mar 143 km · Mar del Plata 161 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

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 Mar de Ajó (-36.7288°, -56.6827°, elevation 24 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).

	Avg high (°C)	Avg low (°C)
1	13	9
2	13	9
3	13	9
4	13	9
5	13	9
6	13	9
7	13	9
8	13	9
9	13	9
10	13	9
11	13	10
12	13	10
13	13	10
14	13	10
15	13	10
16	13	10
17	14	10
18	14	10
19	14	10
20	14	10
21	14	10
22	14	10
23	14	10
24	14	10
25	14	10
26	14	10
27	14	11
28	14	11
29	14	11
30	14	11

	Clearer (%)	Cloudier (%)
1	47	53
2	47	53
3	47	53
4	47	53
5	48	52
6	47	53
7	48	52
8	48	52
9	49	51
10	49	51
11	49	51
12	49	51
13	49	51
14	49	51
15	49	51
16	49	51
17	49	51
18	50	50
19	50	50
20	50	50
21	49	51
22	49	51
23	49	51
24	49	51
25	48	52
26	48	52
27	48	52
28	48	52
29	48	52
30	48	52

	Rain chance (%)
1	25
2	25
3	26
4	26
5	26
6	25
7	25
8	25
9	24
10	24
11	23
12	23
13	23
14	22
15	22
16	21
17	21
18	21
19	21
20	22
21	22
22	23
23	23
24	24
25	25
26	25
27	26
28	26
29	26
30	27

	Dry (%)	Comfortable (%)
1	96	4
2	97	3
3	97	3
4	97	3
5	97	3
6	97	3
7	97	3
8	97	3
9	97	3
10	96	4
11	96	4
12	96	4
13	96	4
14	96	4
15	96	4
16	96	4
17	95	5
18	95	5
19	95	5
20	95	5
21	95	5
22	95	5
23	95	5
24	94	6
25	94	6
26	93	7
27	93	7
28	92	8
29	92	8
30	91	9

	Avg high (°C)	Avg low (°C)
1	13	9
2	13	9
3	13	9
4	13	9
5	13	9
6	13	9
7	13	9
8	13	9
9	13	9
10	13	9
11	13	10
12	13	10
13	13	10
14	13	10
15	13	10
16	13	10
17	14	10
18	14	10
19	14	10
20	14	10
21	14	10
22	14	10
23	14	10
24	14	10
25	14	10
26	14	10
27	14	11
28	14	11
29	14	11
30	14	11

	Clearer (%)	Cloudier (%)
1	47	53
2	47	53
3	47	53
4	47	53
5	48	52
6	47	53
7	48	52
8	48	52
9	49	51
10	49	51
11	49	51
12	49	51
13	49	51
14	49	51
15	49	51
16	49	51
17	49	51
18	50	50
19	50	50
20	50	50
21	49	51
22	49	51
23	49	51
24	49	51
25	48	52
26	48	52
27	48	52
28	48	52
29	48	52
30	48	52

	Rain chance (%)
1	25
2	25
3	26
4	26
5	26
6	25
7	25
8	25
9	24
10	24
11	23
12	23
13	23
14	22
15	22
16	21
17	21
18	21
19	21
20	22
21	22
22	23
23	23
24	24
25	25
26	25
27	26
28	26
29	26
30	27

	Dry (%)	Comfortable (%)
1	96	4
2	97	3
3	97	3
4	97	3
5	97	3
6	97	3
7	97	3
8	97	3
9	97	3
10	96	4
11	96	4
12	96	4
13	96	4
14	96	4
15	96	4
16	96	4
17	95	5
18	95	5
19	95	5
20	95	5
21	95	5
22	95	5
23	95	5
24	94	6
25	94	6
26	93	7
27	93	7
28	92	8
29	92	8
30	91	9

	Avg high (°C)	Avg low (°C)
1	13	9
2	13	9
3	13	9
4	13	9
5	13	9
6	13	9
7	13	9
8	13	9
9	13	9
10	13	9
11	13	10
12	13	10
13	13	10
14	13	10
15	13	10
16	13	10
17	14	10
18	14	10
19	14	10
20	14	10
21	14	10
22	14	10
23	14	10
24	14	10
25	14	10
26	14	10
27	14	11
28	14	11
29	14	11
30	14	11

	Clearer (%)	Cloudier (%)
1	47	53
2	47	53
3	47	53
4	47	53
5	48	52
6	47	53
7	48	52
8	48	52
9	49	51
10	49	51
11	49	51
12	49	51
13	49	51
14	49	51
15	49	51
16	49	51
17	49	51
18	50	50
19	50	50
20	50	50
21	49	51
22	49	51
23	49	51
24	49	51
25	48	52
26	48	52
27	48	52
28	48	52
29	48	52
30	48	52

	Rain chance (%)
1	25
2	25
3	26
4	26
5	26
6	25
7	25
8	25
9	24
10	24
11	23
12	23
13	23
14	22
15	22
16	21
17	21
18	21
19	21
20	22
21	22
22	23
23	23
24	24
25	25
26	25
27	26
28	26
29	26
30	27

	Dry (%)	Comfortable (%)
1	96	4
2	97	3
3	97	3
4	97	3
5	97	3
6	97	3
7	97	3
8	97	3
9	97	3
10	96	4
11	96	4
12	96	4
13	96	4
14	96	4
15	96	4
16	96	4
17	95	5
18	95	5
19	95	5
20	95	5
21	95	5
22	95	5
23	95	5
24	94	6
25	94	6
26	93	7
27	93	7
28	92	8
29	92	8
30	91	9