London Heathrow Airport

EGLL / LHR

London, GB

Current TAF Forecast

Raw TAF:
TAF EGLL 170454Z 1706/1812 15007KT 9999 SCT030 TEMPO 1706/1711 BKN012 PROB30 TEMPO 1706/1710 5000 -RADZ RA BKN006 PROB30 TEMPO 1710/1716 7000 SHRA SCT008 BKN012 PROB30 TEMPO 1717/1722 8000 BKN008 BECMG 1722/1801 BKN006 TEMPO 1722/1804 7000 PROB30 TEMPO 1723/1810 3000 BR -DZ TEMPO 1800/1809 BKN004 TEMPO 1804/1812 6000 -RADZ BECMG 1809/1812 SCT025

Detailed TAF Table

Parameter
Sat
10:00Z
+-1h
Sat
11:00Z
+0h
Sat
12:00Z
+1h
Sat
13:00Z
+2h
Sat
14:00Z
+3h
Sat
15:00Z
+4h
Sat
16:00Z
+5h
Sat
17:00Z
+6h
Sat
18:00Z
+7h
Sat
19:00Z
+8h
Sat
20:00Z
+9h
Sat
21:00Z
+10h
Sat
22:00Z
+11h
Sat
23:00Z
+12h
Sun
00:00Z
+13h
Sun
01:00Z
+14h
Sun
02:00Z
+15h
Sun
03:00Z
+16h
Sun
04:00Z
+17h
Sun
05:00Z
+18h
Sun
06:00Z
+19h
Sun
07:00Z
+20h
Sun
08:00Z
+21h
Sun
09:00Z
+22h
Sun
10:00Z
+23h
Wind Dir
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
Wind Speed
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
8 km
8 km
8 km
8 km
8 km
7 km
3 km
3 km
3 km
3 km
3 km
3 km
3 km
3 km
3 km
3 km
3 km
6 km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist, Light Drizzle
BR -DZ
30%
Mist, Light Drizzle
BR -DZ
30%
Mist, Light Drizzle
BR -DZ
30%
Mist, Light Drizzle
BR -DZ
30%
Mist, Light Drizzle
BR -DZ
30%
Mist, Light Drizzle
BR -DZ
30%
Mist, Light Drizzle
BR -DZ
30%
Mist, Light Drizzle
BR -DZ
30%
Mist, Light Drizzle
BR -DZ
30%
Mist, Light Drizzle
BR -DZ
30%
Mist, Light Drizzle
BR -DZ
30%
Light RADZ
-RADZ
Clouds
SCT030
SCT030
SCT030
SCT030
SCT030
SCT030
SCT030
BKN008
BKN008
BKN008
BKN008
BKN008
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
800ft
AGL
800ft
AGL
800ft
AGL
800ft
AGL
800ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR IFR IFR IFR IFR IFR MVFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR MVFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 16:35
☀️
Day
🌇 16:35
☀️
Day
🌇 16:35
🌇
Dusk
🌇 16:35
🌙
Night
🌇 16:35
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 07:23
🌙
Night
🌅 07:23
🌅
Dawn
🌅 07:23
☀️
Day
🌅 07:23
☀️
Day
🌅 07:23
☀️
Day
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
150° at 7 kt
Visibility
10+ km
Clouds
SCT030
📖 Plain English Explanation:

This is the base forecast condition. Winds from the South-Southeast (150°) at 7kt. Visibility will be excellent at 10+ km. Scattered clouds at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 2026-02-17 06:00:00 - 2026-01-17 11:00:00
MVFR
Clouds
BKN012
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Broken clouds at 1200 feet. Marginal VFR conditions - some restrictions for visual flying.

PROB30 TEMPO 2026-02-17 06:00:00 - 2026-02-17 10:00:00
IFR
Visibility
5 km
Weather
Light RADZ, Rain
Clouds
BKN006
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 5 km. Weather conditions: Light RADZ, Rain. Broken clouds at 600 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

PROB30 TEMPO 2026-02-17 10:00:00 - 2026-01-17 16:00:00
IFR
Visibility
7 km
Weather
Showers Rain
Clouds
SCT008 BKN012
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 7 km. Weather conditions: Showers Rain. Scattered clouds at 800 feet, Broken clouds at 1200 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

PROB30 TEMPO 2026-01-17 17:00:00 - 2026-01-17 22:00:00
IFR
Visibility
8 km
Clouds
BKN008
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 8 km. Broken clouds at 800 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 2026-01-17 22:00:00 - 2026-01-18 01:00:00
IFR
Clouds
BKN006
📖 Plain English Explanation:

Conditions will gradually change to become: Broken clouds at 600 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

TEMPO 2026-01-17 22:00:00 - 2026-01-18 04:00:00
MVFR
Visibility
7 km
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 7 km. Marginal VFR conditions - some restrictions for visual flying.

PROB30 TEMPO 2026-01-17 23:00:00 - 2026-01-18 10:00:00
IFR
Visibility
3 km
Weather
Mist, Light Drizzle
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be moderate at 3 km. Weather conditions: Mist, Light Drizzle. Instrument Flight Rules (IFR) conditions - instrument flying required.

TEMPO 2026-01-18 00:00:00 - 2026-01-18 09:00:00
LIFR
Clouds
BKN004
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Broken clouds at 400 feet. Low IFR conditions - challenging even for instrument operations.

TEMPO 2026-01-18 04:00:00 - 2026-01-18 12:00:00
MVFR
Visibility
6 km
Weather
Light RADZ
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 6 km. Weather conditions: Light RADZ. Marginal VFR conditions - some restrictions for visual flying.

BECMG 2026-01-18 09:00:00 - 2026-01-18 12:00:00
VFR
Clouds
SCT025
📖 Plain English Explanation:

Conditions will gradually change to become: Scattered clouds at 2500 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.