Two-week planning outlook

14-Day Weather Forecast for San Juan, Puerto Rico

Daily high and low temperatures, rain chances, wind, UV index, weekend conditions, and planning guidance for the next two weeks.

Expect daytime highs between 87°F and 91°F during the next 14 days. Rain chances peak at 93% on Thursday, Sep 17, while Fri, Sep 4 currently look most favorable for outdoor plans.

Updated Sep 4, 9:05 AM -04:00 1 active alert

14 Days at a Glance

Complete two-week outlook

Warmest DayMon, Sep 7 · 91°FLight Rain

Coolest NightFri, Sep 4 · 77°FBroken Clouds

Highest Rain ChanceThu, Sep 17 · 93%Moderate Rain

Strongest WindThu, Sep 17 · 18.3 mphNo gust data

Weekend OutlookRain possible · Light Rain90°F / 80°F

Total Precipitation1.11 inEstimated across 14 days

Extended local outlook

14-Day Forecast

Detailed 48-hour forecast

Friday, Sep 4 · 89°F / 77°F

Broken Clouds

Rain chance 30%, 16.1 mph E, humidity 58%.

Morning: 77°F
Afternoon: 89°F
Evening: 86°F
Overnight: 79°F
Humidity: 58%
Pressure: 29.97 inHg
Dew point: —
UV index: 0 low
Sunrise: 6:10 AM
Sunset: 6:36 PM

Temperature Trend

HighLow77°F – 91°F

9/49/59/69/79/89/99/109/119/129/139/149/159/169/17

Rain Chances

30%9/4

51%9/5

84%9/6

54%9/7

72%9/8

63%9/9

48%9/10

62%9/11

59%9/12

65%9/13

61%9/14

65%9/15

41%9/16

93%9/17

UV Index

Daily peak

09/4

09/5

09/6

09/7

09/8

09/9

09/10

09/11

09/12

09/13

09/14

09/15

09/16

09/17

Planning Ahead

Forecast-based guidance

Most Favorable Outdoor Days

Fri, Sep 4

Lower rain chances and manageable winds

Rainy Days

Thu, Sep 17 · Sun, Sep 6 · Tue, Sep 8

Peak chance 93%

Warmest Days

Mon, Sep 7 · Sun, Sep 6 · Fri, Sep 11

Highs up to 91°F

Coolest Nights

Fri, Sep 4 · Thu, Sep 17 · Sat, Sep 12

Lows near 77°F

Windiest Day

Thursday, Sep 17

18.3 mph · Gusts —

Weekend Weather

Two-week planning

This Weekend

Sat, Sep 589°F / 80°FOvercast Clouds · Rain 51%

Sun, Sep 690°F / 80°FLight Rain · Rain 84%

Next Weekend

Sat, Sep 1289°F / 80°FLight Rain · Rain 59%

Sun, Sep 1387°F / 81°FLight Rain · Rain 65%

14-Day Weather Forecast for San Juan, Puerto Rico

Expect daytime highs between 87°F and 91°F during the next 14 days. Rain chances peak at 93% on Thursday, Sep 17, while Fri, Sep 4 currently look most favorable for outdoor plans.

Temperatures range from an overnight low near 77°F to a daytime high near 91°F. The strongest rain signal is 93% on Thursday, Sep 17, with 3 notable wet days in the current outlook.

FAQ

14-day forecast questions for San Juan

What is the 14-day weather forecast for San Juan?

Expect daytime highs between 87°F and 91°F during the next 14 days. Rain chances peak at 93% on Thursday, Sep 17, while Fri, Sep 4 currently look most favorable for outdoor plans.

Will it rain in San Juan during the next two weeks?

The strongest rain signal is 93% on Thursday, Sep 17, with 3 notable wet days in the current outlook.

What is the hottest day in San Juan during the next 14 days?

The warmest forecast day is Monday, Sep 7, with a high near 91°F.

What is the coldest night in San Juan?

The lowest forecast temperature is 77°F on Friday, Sep 4.

What will the weather be this weekend in San Juan?

This Weekend currently ranges from 80°F to 90°F, with rain chances peaking at 84%.