Luis Munoz Marin International Airport

TJSJ / SJU

San Juan, PR

Current TAF Forecast

Raw TAF:
TAF TJSJ 041720Z 0418/0518 08018G26KT P6SM -SHRA SCT025 SCT050 FM042300 10012KT P6SM VCSH SCT030 SCT050 FM051400 08022G28KT P6SM VCSH SCT025 SCT050

Detailed TAF Table

Parameter
Wed
21:00Z
+-1h
Wed
22:00Z
+0h
Wed
23:00Z
+1h
Thu
00:00Z
+2h
Thu
01:00Z
+3h
Thu
02:00Z
+4h
Thu
03:00Z
+5h
Thu
04:00Z
+6h
Thu
05:00Z
+7h
Thu
06:00Z
+8h
Thu
07:00Z
+9h
Thu
08:00Z
+10h
Thu
09:00Z
+11h
Thu
10:00Z
+12h
Thu
11:00Z
+13h
Thu
12:00Z
+14h
Thu
13:00Z
+15h
Thu
14:00Z
+16h
Thu
15:00Z
+17h
Thu
16:00Z
+18h
Wind Dir
80°
E
80°
E
100°
E
100°
E
100°
E
100°
E
100°
E
100°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
Wind Speed
18 kt
G26 kt
18 kt
G26 kt
12 kt
G26 kt
12 kt
G26 kt
12 kt
G26 kt
12 kt
G26 kt
12 kt
G26 kt
12 kt
G26 kt
18 kt
G26 kt
18 kt
G26 kt
18 kt
G26 kt
18 kt
G26 kt
18 kt
G26 kt
18 kt
G26 kt
18 kt
G26 kt
18 kt
G26 kt
18 kt
G26 kt
22 kt
G28 kt
22 kt
G28 kt
22 kt
G28 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT025
SCT050
SCT025
SCT050
SCT030
SCT050
SCT030
SCT050
SCT030
SCT050
SCT030
SCT050
SCT030
SCT050
SCT030
SCT050
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:11Z
🌙
Night
🌅 06:11Z
🌅
Dawn
🌅 06:11Z
☀️
Day
🌅 06:11Z
☀️
Day
🌅 06:11Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:48Z
☀️
Day
🌇 17:48Z
Flight Rules
VFR: Visual Flight Rules
MVFR: Marginal VFR
IFR: Instrument Flight Rules
LIFR: Low IFR
Ceiling Colors
Red: < 500ft
Amber: 500-1000ft
Blue: 1000-3000ft
Green: > 3000ft
⛈️ TCU: Towering Cumulus
🌩️ CB: Cumulonimbus
+Nh: Hours from now • %: Probability of occurrence • AGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
80° at 18 kt
Gusts: 26 kt
Visibility
>6SM
Weather
Light Showers Rain
Clouds
SCT025 SCT050
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East (80°) at 18 kt. Gusts up to 26 kt are expected. Visibility will be excellent at more than 6SM. Weather conditions: Light Showers Rain. Scattered clouds at 2500 feet, Scattered clouds at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM042300 23:00Z - 05:00Z
VFR
Wind
100° at 12 kt
Visibility
>6SM
Clouds
SCT030 SCT050
📖 Plain English Explanation:

Winds from the East (100°) at 12 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 3000 feet, Scattered clouds at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM051400 14:00Z - 20:00Z
VFR
Wind
80° at 22 kt
Gusts: 28 kt
Visibility
>6SM
Clouds
SCT025 SCT050
📖 Plain English Explanation:

Winds from the East (80°) at 22 kt. Gusts up to 28 kt are expected. Visibility will be excellent at more than 6SM. Scattered clouds at 2500 feet, Scattered clouds at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

📚 Understanding TAF Forecasts

Terminal Aerodrome Forecast (TAF) provides detailed weather forecasts specifically for aviation operations. Our system translates complex meteorological codes into plain English to help pilots of all experience levels understand forecasted conditions.

What TAF Includes:

  • • Wind direction, speed, and gusts
  • • Visibility in statute miles or kilometers
  • • Weather phenomena (rain, snow, fog, thunderstorms)
  • • Cloud coverage types and altitudes
  • • Forecast changes with timing
  • • Flight rules categories (VFR/IFR)

Change Indicators Explained:

  • • BASE - Main forecast conditions
  • • FM - Permanent change from specific time
  • • BECMG - Gradual change over 2-4 hours
  • • TEMPO - Temporary changes (less than 1 hour)
  • • PROB30/40 - 30% or 40% probability

🛩️ Flight Rules Categories

VFR

Visual Flight Rules

  • • Ceiling ≥ 3000 ft
  • • Visibility ≥ 5 miles
  • • Good for visual flying

MVFR

Marginal VFR

  • • Ceiling 1000-3000 ft
  • • Visibility 3-5 miles
  • • Caution for VFR

IFR

Instrument Flight Rules

  • • Ceiling 500-1000 ft
  • • Visibility 1-3 miles
  • • Instruments required

LIFR

Low IFR

  • • Ceiling < 500 ft
  • • Visibility < 1 mile
  • • Challenging conditions

💡 TAF Reading Tips

For Student Pilots:

  • • Focus on the plain English explanations above
  • • Pay attention to flight rules categories
  • • Look for wind direction relative to runway headings
  • • Check for temporary conditions (TEMPO)

For Experienced Pilots:

  • • Cross-reference with raw TAF for precise timing
  • • Consider probability forecasts for alternate planning
  • • Monitor BECMG periods for gradual changes
  • • Always check current METAR vs TAF forecast

Important: TAF forecasts should always be supplemented with current METAR observations, PIREPs, and other weather information for complete situational awareness. Weather can change rapidly, and forecasts have inherent limitations.