RAF Marham

EGYM / KNF

King's Lynn, Norfolk, GB

Last Updated
Apr 22, 20:50Z

Military Airport

PPR Available

This is a Royal Air Force or Ministry of Defence aerodrome. Civil access may be available with Prior Permission Required (PPR).

Access Notes:

Many RAF stations accept civil PPR; consult UK AIP AD 2 for specific procedures

Consult official AIP (UK AIP ENR 2.2) for current access procedures and restrictions.

Current Weather

Display Units
Aging 1 hour ago
20:50Z

🌙 Night
VFR
Flight Rules
6°C
Temperature
Dewpoint: 5°C
5 kt
50°
10+ km
Visibility
Ceiling
Unlimited
1030 hPa
QNH
Altimeter Setting

Raw METAR

METAR EGYM 222050Z 05005KT 9999 FEW010 06/05 Q1030 RMK BLU

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 75 ft
FEW 1,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
1,000 ft
AGL (Above Ground)
1,075 ft AMSL

Weather Briefing

VFR

RAF Marham is currently reporting visual flight rules (VFR) conditions with few clouds at 1,000 feet and 10 miles or greater visibility. Note: This observation is 1.1 hours old and conditions may have changed.

Wind Analysis

Winds are from the northeast (50°) at 5 knots. Runway 05/23 is favored with a 5-knot headwind and 0-knot crosswind component.

Visibility & Ceiling

Visibility is unrestricted. No ceiling exists. Cloud layers reported: few at 1,000 ft.

Temperature & Moisture

Temperature is 6°C (43°F) with a dewpoint of 5°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.

Forecast Outlook

The TAF forecast covers the next 3 hours. Conditions are expected to remain VFR throughout the forecast period.

Pilot Recommendations

Conditions are favorable for visual flight. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1030 hPa
Sea Level Pressure
For altitude above MSL
QFE
1028 hPa
Field Pressure
Height above aerodrome (75 ft)
Pressure Alt
-428 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -1,490 ft
ISA Deviation: -8.9°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF EGYM 221406Z 2215/2218 07012KT 9999 FEW040
Upcoming Changes (Next 12 Hours)
21:55Z BASE
+0h
VFR 70° 12 kt
Visibility: 10+ km

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
Chart Features
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
GYM
01
19
05 ✈️
23

Runway Information

Runway Length Width Surface Heading Wind Component
01/19 6,116 ft 148 ft CON
3.8 kt 3.3 kt
41° angle
✈️ 05/23
Active: 05
9,131 ft 148 ft ASP 55°
5.0 kt 0.0 kt
0° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - EGYM

8,967 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
58.7%
MVFR
23.1%
IFR
12.1%
LIFR
6.1%

RAF Marham is frequently affected by reduced visibility conditions, with VFR weather only 58.7% of the time and IFR/LIFR conditions occurring in 18.2% of observations. Prevailing winds are from the S averaging 10.1 knots, with gusts recorded up to 31 knots. Temperature extremes range from -11°C to 26°C, reflecting significant seasonal variation. The best months for VFR flying are April, September, December.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 10.1 kt
Maximum Recorded: 31 kt
Calm Winds: 0.4%
Direction Distribution:
N
6.9%
NE
6.6%
E
10.2%
SE
16.5%
S
25.1%
SW
16.9%
W
10.5%
NW
6.9%

Temperature Range

Average: 8.4°C
Range: -11°C to 26°C
-11°C 26°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 2.4%

Best Months for VFR

April September December

Runway Wind Analysis

Runway 01/19
Favorable wind: 100%
Avg crosswind: 5.9 kt
Runway 05/23
Favorable wind: 100%
Avg crosswind: 6.2 kt

Statistics computed from 8,967 METAR observations (Sep 2025 - Apr 2026). Data sourced from official aviation weather services. Updated daily.

RAF Marham - Airport Information

Airport Details

ICAO Code: EGYM
IATA Code: KNF
Type: medium airport
Status: active
Elevation: 75 ft MSL

Location

City: King's Lynn, Norfolk
Country: GB
Latitude: 52.648395°
Longitude: 0.550692°
Time Zone: Europe/Brussels

Runway Information

Runway 01/19
Length: 6,116 ft
Width: 148 ft
Surface: CON
ILS: No
Runway 05/23
Length: 9,131 ft
Width: 148 ft
Surface: ASP
ILS: No

About RAF Marham

RAF Marham is a military facility. Civilian access may be restricted or require Prior Permission (PPR). Pilots should consult the GB AIP for current access procedures and restrictions.

Overview

RAF Marham is a medium-sized military airport located in Norfolk, eastern England, situated near King's Lynn at an elevation of 75 feet MSL. As a Royal Air Force base, it serves critical military aviation operations and strategic defense infrastructure in the United Kingdom.

Flying Conditions

Weather conditions at RAF Marham are predominantly VFR, with 59.2% of observations in visual flight rules conditions. The prevailing wind is from the south at 180° with an average speed of 10.2 knots, and temperature ranges from -11°C to 26°C, with an average of 8.7°C. Pilots can expect excellent visibility, with an average of 10 statute miles and minimal fog occurrence of only 2.2%.

Notable Features

The airport features two significant runways: a 6,116-foot concrete runway (01/19) and a 9,131-foot asphalt runway (05/23). Both runways demonstrate favorable wind alignment, with 100% favorable wind conditions. The surrounding Norfolk landscape is characterized by relatively flat terrain typical of eastern England's coastal plains.

Approach Considerations

Both runways offer consistent wind conditions with minimal crosswind challenges, averaging 5.6 knots for runway 01/19 and 6.3 knots for runway 05/23. September, November, and December represent the best months for visual flight conditions, providing optimal flying opportunities for pilots operating at RAF Marham.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.