Río Grande weather in May

In May, Río Grande sees average daytime highs of 7°C and overnight lows near 3°C, with 35 mm of precipitation across 7.9 wet days and about 8.4 hours of daylight. It is the 8th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 8°C in the first days to 6°C by the end. The sky is clear or mostly clear about 31% of the time in May, and the air most often feels dry.

Daylight stretches from about 9 h 12 min at the start of May to 7 h 36 min by month's end. Set against the rest of the year, May is Río Grande's 4th-clearest and 10th-windiest month. For the whole year in context, see Río Grande's year-round climate.

Daytime high
8th warmest
Overnight low
5th coldest
Precipitation
35 mm
7.9 wet days
Daylight
8 h 18 min
9:17 AM – 5:37 PM
Cloud cover
59%
4th clearest
Wind
24 km/h
10th windiest
Solar energy
1 kWh/m²
Travel score
0.9
out of 10

Río Grande is city in Tierra del Fuego, Argentina.

Density
4/km²
people per km²
Founded
1921

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 8°C in the first days to 6°C by the end.

A typical May day in Río Grande reaches about 7°C in the afternoon and slips back to 3°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 9°C. Set against its neighbours, May runs about 3°C cooler than April and about 2°C warmer than June.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
184
284
384
484
584
684
784
884
984
1084
1174
1274
1374
1474
1574
1673
1773
1873
1973
2073
2163
2263
2363
2463
2563
2662
2762
2862
2962
3062
3152

How May really feels in Río Grande

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

The story in May is cold — wind chill drags the overnight "feels like" below the raw low.

Río Grande weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan13° / 4912.3016.23.3
Feb13° / 389.1014.63.5
Mar12° / 449.6012.52.9
Apr / 399.20.110.32.0
May / 357.90.28.40.9
Jun / 296.617.30.0
Jul / 276.91.57.70.0
Aug / 266.41.19.40.1
Sep / 246.20.511.50.7
Oct / 226.30.313.81.6
Nov10° / 308.3015.72.4
Dec12° / 4210.3016.72.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24852
34852
44852
54852
64852
74753
84753
94753
104753
114753
124753
134753
144753
154852
164852
174951
184852
194951
205050
215050
225149
235149
245149
255149
265149
275149
285149
295149
305149
315050

Chance of precipitation in May

Any precipitation

Río Grande gets around 35 mm of rain and snow over 7.9 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 26% and peaks near 29% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)
129
229
329
429
528
628
728
827
927
1027
1126
1226
1326
1425
1525
1625
1725
1825
1924
2024
2124
2224
2324
2424
2524
2624
2724
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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in May

Winds average 24 km/h in May.

Across May, daily wind ranges from about 24 km/h on the calmest days to 26 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
126breezy
226breezy
326breezy
425breezy
525breezy
625breezy
725breezy
825breezy
925breezy
1024breezy
1124breezy
1224breezy
1324breezy
1424breezy
1524breezy
1624breezy
1724breezy
1824breezy
1924breezy
2024breezy
2124breezy
2224breezy
2324breezy
2424breezy
2524breezy
2624breezy
2724breezy
2824breezy
2924breezy
3024breezy
3124breezy

Sunrise & sunset in May

DaylightNight

Daylight runs from about 9 h 12 min at the start of May to 7 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over May. Sunrise moves from 8:51 AM to 9:40 AM, and sunset from 6:05 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.28:516:05
29.28:536:03
39.18:546:01
49.08:565:59
59.08:585:57
68.99:005:55
78.99:025:53
88.89:035:51
98.79:055:49
108.79:075:47
118.69:095:46
128.69:115:44
138.59:125:42
148.49:145:40
158.49:165:38
168.39:175:37
178.39:195:35
188.29:215:34
198.29:225:32
208.19:245:30
218.19:265:29
228.09:275:28
238.09:295:26
247.99:305:25
257.99:325:23
267.89:335:22
277.89:355:21
287.79:365:20
297.79:375:19
307.69:395:18
317.69:405:17

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 1 kWh/m².

For context, solar energy here swings from a low near 0.63 kWh/m² to a high of 6.66 kWh/m² in December across the year — May's 1 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.4Dim
21.4Dim
31.3Dim
41.3Dim
51.3Dim
61.2Dim
71.2Dim
81.2Dim
91.1Dim
101.1Dim
111.1Dim
121.1Dim
131.0Dim
141.0Dim
151.0Dim
161.0Dim
171.0Dim
180.9Dim
190.9Dim
200.9Dim
210.9Dim
220.9Dim
230.9Dim
240.8Dim
250.8Dim
260.8Dim
270.8Dim
280.8Dim
290.8Dim
300.8Dim
310.7Dim
Planning a trip in May

Is May a good time to visit Río Grande?

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

0.9
Sightseeing
8th-best month of the year
Beach & pool
never really warm enough

May is a weaker month for outdoor sightseeing in Río Grande.

What to pack for Río Grande in May

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

In May, Río Grande sees daytime highs around 7°C and nights near 3°C. Pack a warm layer. Worth having: a heavy coat and a windbreaker. About 8 days see rain.

a warm layera heavy coata windbreaker

Sea temperature near Río Grande in May

The nearest coast averages about 8°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 19 km away) is warmest in February at about 11°C and coldest in August near 4°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°JanFebMarAprMayJunJulAugSepOctNovDecbracing
Sea temperature (°C)Comfort
Jan10Bracing
Feb11Bracing
Mar10Bracing
Apr9Bracing
May8Bracing
Jun6Bracing
Jul5Bracing
Aug4Bracing
Sep4Bracing
Oct5Bracing
Nov7Bracing
Dec9Bracing

UV index in Río Grande in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Río Grande peaks around January 13 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highModerateLowModerateHighVery highJan 13UV 8Jun 18UV 0
UV index (midday)Level
Jan8Very high
Feb7Very high
Mar4Moderate
Apr2Low
May1Low
Jun0Low
Jul1Low
Aug1Low
Sep2Moderate
Oct4Moderate
Nov6High
Dec8Very high
Location & terrain

Where is Río Grande?

Río Grande sits at 53.8°S, 67.7°W, 9 m above sea level, in Argentina. The nearest listed city is Ushuaia, 120 km away.

Punta ArenasRío GallegosPuerto NatalesEl CalafateEl ChaltenPuerto DeseadoStanley

Topography around Río Grande

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

Within 3 km, the terrain around Río Grande has only modest variations in elevation — a maximum elevation change of 20 m around an average of 6 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 102 m; within 80 km, large variations in elevation — a maximum elevation change of 953 m.

The land around Río Grande is covered by water (37%), artificial surfaces (29%) and grassland (26%) within 3 km, grassland (48%) and water (48%) within 16 km, and grassland (51%) and water (30%) within 80 km.

3 km
20 m
16 km
102 m
80 km
953 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Ushuaia 120 km · Punta Arenas 223 km · Río Gallegos 262 km · Puerto Natales 395 km · El Calafate 494 km · El Chalten 611 km · Puerto Deseado 683 km · Stanley 702 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 Río Grande (-53.7877°, -67.7097°, elevation 9 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).