Las Grutas Weather in May
May in Las Grutas averages 17°C (63°F) during the day and 7°C (45°F) at night. Around 27 mm (1.1 in) of rainfall is typical for this time of year.
Rainfall in Las Grutas in May
The climate data from previous years indicates about 4 days of rain, averaging 27 mm (1.1 in) for the month. The odd shower may pass through, but it usually doesn't amount to much. A largely dry month overall.
Temperature in Las Grutas in May
Expect highs of 17°C (63°F) in Las Grutas in May, with nights dropping to around 7°C (45°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 7°C (45°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Wind Speed in Las Grutas in May
In May, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.
Average water temperature in May
The water is 13°C (55°F) this month — cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.Our weather planner can help you find worldwide destinations with pleasant weather during this period. February, March, April, September, October, November and December typically offer the best weather for Las Grutas.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Las Grutas's climate page.
Las Grutas Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
17°C (63°F)
Water Temperature
13°C (55°F) *
Chance of Rain
15%
Precipitation
27 mm (1.1 in)
Rainy days
4 days
Humidity
67% *
Windspeed
4 m/s (8 knots) *
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Las Grutas typically drop from around 18°C (64°F) at the start of May to approximately 14°C (57°F) by the end. Nights are cold, with lows typically ranging from 4°C (39°F) to 9°C (48°F).
Average temperatures in May
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Las Grutas in May
Browse day-by-day weather records for Las Grutas spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Las Grutas historical weather extremes in May
Based on 38 years of weather observations (1988-2026), these are the most extreme conditions recorded in Las Grutas.
- On May 1, 2010, temperatures climbed to 31°C (88°F), marking the warmest May day on record.
- On May 30, 1991, Las Grutas saw its coldest May day with temperatures maxing out at 4°C (39°F).
- Nighttime temperatures dropped to -7°C (19°F) on May 25, 1993, marking the coldest May night on record.
Best Places in Argentina in May
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in May →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Las Grutas in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Light rain is possible, so consider bringing a small umbrella or rain jacket. With water temperatures around 13°C (55°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough.What To Do in Las Grutas in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Las Grutas's climate page.
Temperature Rainfall Humidity Wind Speed Water Temp
See the full Las Grutas climate overview or explore weather in Argentina.
