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San Juan

San Juan 1
Travel Info
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San Juan Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-10

San Juan year round climate

  • Spring (March–May): Average 76–79°F, warm to hot temperatures, abundant sunshine, sparse rainfall, dry weather. Common activities: Beach leisure, water activities, exploring Old San Juan. Recommended attire: Lightweight breathable clothing, short sleeves, shorts, swimwear, sun hat, sunglasses.
  • Summer (June–August): Average 80–81°F, hot temperatures, higher humidity, lowest rainfall of the year, strong sunshine. Common activities: Enjoying sunny beaches, evening strolls, tasting local cuisine. Recommended attire: Extremely lightweight breathable clothing, shorts, short sleeves, sandals.
  • Autumn (September–November): Average 78–82°F, continuously hot temperatures, September and October are the hottest months of the year, rainfall slightly increases in November but remains generally low. Common activities: Exploring natural scenery, participating in cultural festivals, seaside leisure. Recommended attire: Light summer wear, light jacket (in case of occasional showers in November).
  • Winter (December–February): Average 74–77°F, warm and pleasant climate, the coolest and most comfortable season of the year, sparse rainfall. Common activities: Outdoor sports, sightseeing, enjoying resort facilities, an ideal time to escape the cold. Recommended attire: Short sleeves, shorts, lightweight long pants; a light jacket might be needed in the evening.

San Juan climatological average

Annual average temperature: approx. 78.8°F / Annual rainfall: approx. 67 mm / Summer humidity: 70-80% / Rainiest month: November

San Juan monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
75.7°F
0.9
February
74.5°F
5.6
March
76.1°F
2
April
77.2°F
4.2
May
79.3°F
5.4
June
81°F
4.8
July
80.8°F
2.9
August
81°F
4
September
82°F
8.8
October
82.2°F
7.4
November
78.6°F
13.9
December
77.7°F
7.5

San Juan weather for the next seven days

12/18
Thursday
Patchy rain nearby
83.3°F/72.5°F
12/19
Friday
Moderate rain
86.9°F/75°F
12/20
Saturday
Patchy rain nearby
87.3°F/74.1°F
12/21
Sunday
Patchy rain nearby
81.3°F/70.2°F
12/22
Monday
Patchy rain nearby
80.1°F/69.3°F
12/23
Tuesday
Patchy rain nearby
79.2°F/72.3°F
12/24
Wednesday
Patchy rain nearby
74.7°F/69.3°F