Necochea weather in May

In May, Necochea sees average daytime highs of 16°C and overnight lows near 10°C, with 53 mm of rain across 7.4 wet days and about 9.9 hours of daylight. It is the 8th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 17°C in the first days to 14°C by the end. The sky is clear or mostly clear about 30% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of May to 9 h 30 min by month's end. Set against the rest of the year, May is Necochea's 11th-clearest and 12th-windiest month. For the whole year in context, see Necochea's year-round climate.

Daytime high
16°
8th warmest
Overnight low
10°
6th coldest
Rainfall
53 mm
7.4 wet days
Daylight
9 h 54 min
7:54 AM – 5:49 PM
Cloud cover
61%
11th clearest
Wind
18 km/h
12th windiest
Solar energy
2.31 kWh/m²
Travel score
5.2
out of 10

Necochea is city in Buenos Aires Province, Argentina.

Founded
1881

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 17°C in the first days to 14°C by the end.

A typical May day in Necochea reaches about 16°C in the afternoon and slips back to 10°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 20°C. Set against its neighbours, May runs about 3°C cooler than April and about 3°C warmer than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11811
21811
31711
41711
51711
61711
71711
81710
91710
101710
111710
121610
131610
141610
151610
161610
171610
181610
19169
20159
21159
22159
23159
24159
25159
26159
27159
28148
29148
30148
31148

Necochea weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 16°759.314.47.3
Feb24° / 17°72813.57.4
Mar23° / 15°738.212.37.2
Apr19° / 12°778.8116.5
May16° / 10°537.49.95.2
Jun13° / 547.69.43.8
Jul12° / 527.79.63.3
Aug13° / 577.210.54.0
Sep15° / 567.911.74.6
Oct17° / 10°738.6135.7
Nov20° / 12°839.814.16.6
Dec23° / 15°65814.67.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
34852
44852
54852
64753
74753
84753
94654
104753
114753
124654
134654
144654
154654
164654
174654
184654
194555
204654
214654
224456
234456
244456
254456
264555
274555
284456
294456
304555
314555

Chance of precipitation in May

Any precipitation

Necochea gets around 53 mm of rain over 7.4 wet days in May. 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 26% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
124
224
324
423
523
622
722
822
922
1022
1122
1223
1323
1423
1524
1624
1724
1825
1925
2025
2126
2226
2326
2426
2526
2625
2725
2824
2924
3024
3124

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
183143
284133
384133
484133
585123
685123
785123
885123
986113
1086113
1186113
1287112
1387112
1488102
1588102
1688102
1788102
1889101
1989101
209091
219091
229091
239181
249271
259271
269361
279361
289550
299550
309640
319640

Wind in May

Winds average 18 km/h in May, the calmest month.

Across May, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3119light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 24 min at the start of May to 9 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over May. Sunrise moves from 7:40 AM to 8:06 AM, and sunset from 6:05 PM to 5:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.47:406:05
210.47:416:03
310.37:426:02
410.37:436:01
510.37:446:00
610.27:455:59
710.27:465:58
810.27:465:56
910.17:475:55
1010.17:485:54
1110.17:495:53
1210.07:505:52
1310.07:515:51
1410.07:525:50
159.97:535:49
169.97:545:49
179.97:555:48
189.97:565:47
199.87:575:46
209.87:575:45
219.87:585:44
229.77:595:44
239.78:005:43
249.78:015:42
259.78:025:42
269.68:025:41
279.68:035:40
289.68:045:40
299.68:055:39
309.68:065:39
319.58:065:38

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.31 kWh/m².

For context, solar energy here swings from a low near 1.87 kWh/m² to a high of 7.64 kWh/m² in December across the year — May's 2.31 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.8Moderate
22.8Moderate
32.7Moderate
42.7Moderate
52.7Moderate
62.6Moderate
72.6Moderate
82.6Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.4Moderate
132.4Moderate
142.4Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.2Moderate
222.1Moderate
232.1Moderate
242.1Moderate
252.1Moderate
262.1Moderate
272.0Moderate
282.0Moderate
292.0Moderate
302.0Moderate
312.0Dim
Planning a trip in May

Is May a good time to visit Necochea?

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

5.2
Sightseeing
8th-best month of the year
0.7
Beach & pool
8th-best month of the year

May is a reasonable time to visit Necochea for sightseeing.

What to pack for Necochea in May

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

In May, Necochea sees daytime highs around 16°C and nights near 10°C. Worth packing: a warm layer. About 7 days see rain.

a warm layer

Sea temperature near Necochea in May

The nearest coast averages about 16°C in May — 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 20°C and coldest in August near 10°C.

It's comfortable for a long swim from Feb 3 to Mar 1 — about 0.9 months when the water holds above 20°C.

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan20Cool
Feb20Refreshing
Mar20Cool
Apr18Cool
May16Cool
Jun13Bracing
Jul11Bracing
Aug10Bracing
Sep11Bracing
Oct12Bracing
Nov15Bracing
Dec17Cool

UV index in Necochea in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Necochea peaks around December 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateModerateVery highExtremeDec 20UV 12Jun 20UV 2
UV index (midday)Level
Jan11Extreme
Feb11Extreme
Mar8Very high
Apr5High
May3Moderate
Jun2Low
Jul2Moderate
Aug3Moderate
Sep5Moderate
Oct7Very high
Nov10Extreme
Dec12Extreme
Location & terrain

Where is Necochea?

Necochea sits at 38.6°S, 58.7°W, 19 m above sea level, in Argentina. The nearest listed city is Miramar, 85 km away.

Topography around Necochea

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

Within 3 km, the terrain around Necochea has only modest variations in elevation — a maximum elevation change of 29 m around an average of 15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 59 m; within 80 km, significant variations in elevation — a maximum elevation change of 409 m.

The land around Necochea is covered by artificial surfaces (52%) and grassland (33%) within 3 km, cropland (50%) and water (34%) within 16 km, and cropland (51%) and water (33%) within 80 km.

3 km
29 m
16 km
59 m
80 km
409 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Miramar 85 km · Balcarce 89 km · Mar del Plata 120 km · Santa Clara del Mar 134 km · Tres Arroyos 135 km · Benito Juárez 135 km · Tandil 141 km · Ayacucho 157 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 Necochea (-38.5545°, -58.7396°, elevation 19 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).