Gualeguaychú Weather in May
Gualeguaychú in May sees pleasant daytime temperatures of 21°C (70°F) and nighttime lows of 11°C (52°F). Rainfall is fairly high this month at around 83 mm (3.3 in), so pack a rain jacket to stay dry.
Rainfall in Gualeguaychú in May
Climate statistics over the past 30 years suggest around 7 days of rain, with 83 mm (3.3 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Gualeguaychú in May
Gualeguaychú in May has excellent weather. Days reach 21°C (70°F) and nights cool to 11°C (52°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 11°C (52°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Gualeguaychú in May
The area enjoys a moderate level of sunlight, with around 167 hours. It's a good balance between sunny and cloudy days.If your ideal day consists of dry skies and pleasant temperatures, May, August and September typically offer the best circumstances for Gualeguaychú.
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 Gualeguaychú's climate page.
Gualeguaychú Temperature in May
Min Temperature
11°C (52°F)
Max Temperature
21°C (70°F)
Chance of Rain
23%
Precipitation
83 mm (3.3 in)
Rainy days
7 days
Humidity
78% *
Sunshine
167 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Gualeguaychú typically drop from around 22°C (72°F) at the start of May to approximately 17°C (63°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 11°C (52°F).
Average temperatures in May
Daily Historical Precipitation
50-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 Gualeguaychú in May
Browse day-by-day weather records for Gualeguaychú spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Gualeguaychú historical weather extremes in May
Based on weather observations in Gualeguaychú between 1976 and 2026, these are the recorded extremes during May.
- The warmest day in May was on May 7, 1981, with a maximum of 33°C (91°F).
- Gualeguaychú experienced its chilliest May day on May 28, 2007, reaching only 9°C (48°F).
- The lowest overnight temperature recorded in May was -4°C (25°F) (May 31, 2022).
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
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What to Wear in Gualeguaychú in May
For Gualeguaychú in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Gualeguaychú 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 Gualeguaychú's climate page.
Temperature Rainfall Sunshine Humidity
See the full Gualeguaychú climate overview or explore weather in Argentina.
