The 10 most alternative cities in South America
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San Rafael Weather in May
May in San Rafael typically sees daytime highs of 18°C (64°F) and nighttime lows of 9°C (48°F). May falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in San Rafael in May
San Rafael is in the rainy season in May, with rain on around 17 days and an average of 182 mm (7.2 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.
Temperature in San Rafael in May
May in San Rafael sees highs of 18°C (64°F) and lows of 9°C (48°F) overnight. Conditions are often most pleasant around the middle of the day. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in San Rafael in May
The area enjoys a balanced 165 hours of sunlight, ensuring it's neither too rainy nor too sunny.If you prefer dry days with pleasant temperatures, July, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
San Rafael Temperature in May
Min Temperature
9°C (48°F)
Max Temperature
18°C (64°F)
Chance of Rain
57%
Precipitation
182 mm (7.2 in)
Rainy days
17 days
Humidity
80% *
Sunshine
165 hours *
Percentage Sunshine
*
* Data from: Quito, Ecuador (47 KM, 29 Miles).
San Rafael Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Rafael - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in San Rafael typically stay consistent throughout May, with daily highs averaging around 18°C (64°F). Nights are cool, with lows around 11°C (52°F).
Average temperatures in May
Historical weather records for San Rafael in May
Browse day-by-day weather records for San Rafael spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Rafael historical weather extremes in May
The extremes listed below come from historical weather data collected in San Rafael from 2004 through 2026.
- San Rafael recorded its highest May temperature of 28°C (82°F) on May 20, 2026.
- The lowest daytime temperature in May was 14°C (57°F), recorded on May 13, 2011.
- The lowest overnight temperature recorded in May was 4°C (39°F) (May 21, 2012).
Best Places in Ecuador in May
Find out more about the weather in Ecuador and which places have the best travel conditions in this month. See all of Ecuador in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in San Rafael in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in San Rafael in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Camping3/10
San Rafael 3-Day Forecast
More climate data for San Rafael
Temperature Rainfall Sunshine Humidity
See the full San Rafael climate overview or explore weather in Ecuador.
Popular in May
Where to go in May - average daytime high across popular destinations.
Guayaquil
30°C (86°F) Montañita
28°C (82°F) Puerto Ayora29°C (84°F) Puerto Baquerizo Moreno
26°C (79°F) Salinas26°C (79°F) Quito19°C (66°F) Baños17°C (63°F) Cuenca
16°C (61°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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