Portland International Jetport

KPWM / PWM

Portland, US

Last Updated
Apr 22, 23:51Z

Current Weather

Display Units
Aging 1 hour ago
23:51Z

🌙 Night
MVFR
Flight Rules
6°C
Temperature
Dewpoint: 4°C
9 kt
190°
10 SM
Visibility
2,600 ft
Ceiling
Above Ground Level
1017 hPa
QNH
Altimeter Setting

Raw METAR

METAR KPWM 222351Z 19009KT 10SM OVC026 06/04 A3003 RMK AO2 SLP170 60000 T00610044 10067 20056 56008 $

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 76 ft
OVC 2,600 ft AGL
☁️
OVC
Overcast (8/8 sky coverage)
2,600 ft
AGL (Above Ground)
2,676 ft AMSL

Weather Briefing

MVFR

Portland International Jetport is currently reporting marginal VFR (MVFR) conditions with overcast skies at 2,600 feet and 10 SM visibility. Note: This observation is 1 hours old and conditions may have changed.

Wind Analysis

Winds are from the south (190°) at 9 knots. Runway 18/36 is favored with a 9-knot headwind and 2-knot crosswind component.

Visibility & Ceiling

Visibility is 10 SM. The ceiling is 2600 feet AGL (overcast), placing conditions in the MVFR category.

Temperature & Moisture

Temperature is 6°C (43°F) with a dewpoint of 4°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 24 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan.

Pilot Recommendations

VFR pilots should exercise caution. Consider filing IFR if instrument rated, or postponing the flight if conditions are expected to deteriorate further. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours. The forecast indicates conditions may deteriorate. Ensure you have fuel reserves and a viable alternate airport.

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

QNH
1017 hPa
Sea Level Pressure
For altitude above MSL
QFE
1014 hPa
Field Pressure
Height above aerodrome (76 ft)
Pressure Alt
-37 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -1,099 ft
ISA Deviation: -8.8°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KPWM 222336Z 2300/2324 19011KT P6SM OVC025 FM230400 20004KT P6SM BKN006 OVC015 FM231200 30008KT P6SM BKN025 FM231500 32009G17KT P6SM SCT050
Upcoming Changes (Next 12 Hours)
00:52Z BASE
+0h
MVFR 190° 11 kt
Visibility: >6SM
Ceiling: 2,500 ft
04:00Z FM230400
+4h
IFR 200° 4 kt
Visibility: >6SM
Ceiling: 600 ft
12:00Z FM231200
+12h
MVFR 300° 8 kt
Visibility: >6SM
Ceiling: 2,500 ft

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
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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
PWM
11
29
18 ✈️
36

Runway Information

Runway Length Width Surface Heading Wind Component
11/29 7,200 ft 150 ft ASP 95°
0.8 kt 9.0 kt
95° angle
✈️ 18/36
Active: 18
5,001 ft 150 ft ASP 163°
8.9 kt 1.6 kt
10° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KPWM

6,125 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
74%
MVFR
12.1%
IFR
8.2%
LIFR
5.7%

Portland International Jetport typically experiences VFR conditions 74% of the time, though instrument-rated pilots will find IFR weather present approximately 13.9% of observations. Prevailing winds are from the W averaging 7.7 knots. Calm conditions occur 16.2% of the time. Temperature extremes range from -21°C to 29°C, reflecting significant seasonal variation. The best months for VFR flying are February, September, November.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 7.7 kt
Maximum Recorded: 27 kt
Calm Winds: 16.2%
Direction Distribution:
N
16.3%
NE
5.2%
E
5.7%
SE
3.2%
S
12.7%
SW
10.1%
W
16.9%
NW
13.8%

Temperature Range

Average: 2.1°C
Range: -21°C to 29°C
-21°C 29°C

Visibility

Average: 9.1 SM
Below 3 SM: 4.9%
Fog Frequency: 2.9%

Best Months for VFR

February September November

Runway Wind Analysis

Runway 11/29
Favorable wind: 100%
Avg crosswind: 5 kt
Runway 18/36
Favorable wind: 100%
Avg crosswind: 4.5 kt

Statistics computed from 6,125 METAR observations (Sep 2025 - Apr 2026). Data sourced from official aviation weather services. Updated daily.

Portland International Jetport - Airport Information

Airport Details

ICAO Code: KPWM
IATA Code: PWM
Type: large airport
Status: active
Elevation: 76 ft MSL

Location

City: Portland
Country: US
Latitude: 43.646198°
Longitude: -70.309303°
Time Zone: Etc/GMT+5

Runway Information

Runway 11/29
Length: 7,200 ft
Width: 150 ft
Surface: ASP
ILS: No
Runway 18/36
Length: 5,001 ft
Width: 150 ft
Surface: ASP
ILS: No

About Portland International Jetport

Overview

Portland International Jetport serves as a critical aviation hub in southern Maine, located in the city of Portland. The airport supports both commercial passenger and general aviation operations, situated at an elevation of 76 feet mean sea level. Its strategic coastal location provides essential transportation infrastructure for the greater Portland metropolitan area.

Flying Conditions

The airport experiences typical New England maritime weather patterns with significant seasonal variations. Winter months can present challenging conditions with potential snow and low visibility, while summer periods generally offer more stable flying conditions. Pilots should anticipate potential wind shifts and maritime-influenced meteorological dynamics given the airport's proximity to the Atlantic coast.

Notable Features

Portland International Jetport features two paved runways: Runway 11/29 at 7,200 feet and Runway 18/36 at 5,001 feet. The dual runway configuration provides operational flexibility for different wind conditions and aircraft types. Its location near the coast suggests potential for rapidly changing wind conditions that pilots must carefully monitor during approach and departure.

Approach Considerations

Runway selection will primarily depend on prevailing wind direction, with the longer 7,200-foot Runway 11/29 offering more landing options for larger aircraft. The airport's coastal positioning means wind can significantly influence approach strategies, particularly during transitional seasonal periods. Pilots should review current meteorological data and be prepared for potential crosswind landing requirements.

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.