Norman Y. Mineta San Jose International Airport

KSJC / SJC

San Jose, US

Current TAF Forecast

Raw TAF:
TAF KSJC 171720Z 1718/1818 VRB03KT P6SM SKC FM172100 32007KT P6SM SKC FM180200 VRB04KT P6SM SKC FM181200 00000KT 4SM BR SCT004

Detailed TAF Table

Parameter
Sat
20:00Z
+-1h
Sat
21:00Z
+0h
Sat
22:00Z
+1h
Sat
23:00Z
+2h
Sun
00:00Z
+3h
Sun
01:00Z
+4h
Sun
02:00Z
+5h
Sun
03:00Z
+6h
Sun
04:00Z
+7h
Sun
05:00Z
+8h
Sun
06:00Z
+9h
Sun
07:00Z
+10h
Sun
08:00Z
+11h
Sun
09:00Z
+12h
Sun
10:00Z
+13h
Sun
11:00Z
+14h
Sun
12:00Z
+15h
Sun
13:00Z
+16h
Sun
14:00Z
+17h
Sun
15:00Z
+18h
Sun
16:00Z
+19h
Wind Dir
VRB
320°
NW
320°
NW
320°
NW
320°
NW
320°
NW
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
-- -- -- -- --
Wind Speed
3kt
7kt
7kt
7kt
7kt
7kt
4kt
4kt
4kt
4kt
4kt
4kt
3kt
3kt
3kt
3kt
-- -- -- -- --
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
4SM
4SM
4SM
4SM
4SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Clouds
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
SCT004
SCT004
SCT004
SCT004
SCT004
Ceiling
🌤️ Unlimited
🌤️ 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 MVFR MVFR MVFR MVFR MVFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 07:04
🌙
Night
🌅 07:04
🌅
Dawn
🌅 07:04
☀️
Day
🌅 07:04
☀️
Day
🌅 07:04
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 16:55
☀️
Day
🌇 16:55
☀️
Day
🌇 16:55
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 occurrenceAGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
VRB° at 3 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 3kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM172100 2026-01-17 21:00:00 - 2026-01-18 03:00:00
VFR
Wind
320° at 7 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

Winds from the Northwest (320°) at 7kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM180200 2026-01-18 02:00:00 - 2026-01-18 08:00:00
VFR
Wind
VRB° at 4 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

Winds will be variable in direction at 4kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM181200 2026-01-18 12:00:00 - 2026-01-18 18:00:00
MVFR
Wind
0° at 0 kt
Visibility
4SM
Weather
Mist
Clouds
SCT004
📖 Plain English Explanation:

Winds from the North (0°) at 0kt. Visibility will be good at 4SM. Weather conditions: Mist. Scattered clouds at 400 feet. Marginal VFR conditions - some restrictions for visual flying.

📚 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.