Portland International Jetport

KPWM / PWM

Portland, US

Last Updated
Jul 4, 20:51Z

Current Weather

Display Units
Fresh 28 min ago
20:51Z

🌙 Night
VFR
Flight Rules
31°C
Temperature
Dewpoint: 21°C
10 kt
260° G15 kt
10 SM
Visibility
Ceiling
Unlimited
1008 hPa
QNH
Altimeter Setting

Raw METAR

METAR KPWM 042051Z 26010G15KT 10SM FEW070 SCT120 SCT250 31/21 A2977 RMK AO2 SLP081 T03110211 53001 $

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 76 ft
FEW 7,000 ft AGL
SCT 12,000 ft AGL
SCT 25,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
7,000 ft
AGL (Above Ground)
7,076 ft AMSL
SCT
Scattered (3/8-4/8 sky coverage)
12,000 ft
AGL (Above Ground)
12,076 ft AMSL
SCT
Scattered (3/8-4/8 sky coverage)
25,000 ft
AGL (Above Ground)
25,076 ft AMSL

Weather Briefing

VFR

Portland International Jetport is currently reporting visual flight rules (VFR) conditions with scattered clouds at 12,000 feet and 10 SM visibility.

Wind Analysis

Winds are from the west (260°) at 10 knots with gusts to 15 knots. Runway 29 is favored with a 9-knot headwind and 5-knot crosswind component (gusting to 8 knots crosswind).

Visibility & Ceiling

Visibility is 10 SM. No ceiling exists. Cloud layers reported: few at 7,000 ft, scattered at 12,000 ft, scattered at 25,000 ft.

Temperature & Moisture

Temperature is 31°C (88°F) with a dewpoint of 21°C, indicating moderate moisture conditions. High temperatures at this elevation may result in significant density altitude effects. Pilots should calculate density altitude and adjust performance expectations accordingly.

Forecast Outlook

The TAF forecast covers the next 24 hours. Conditions are expected to remain VFR throughout the forecast period.

Pilot Recommendations

Conditions are favorable for visual flight.

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

QNH
1008 hPa
Sea Level Pressure
For altitude above MSL
QFE
1005 hPa
Field Pressure
Height above aerodrome (76 ft)
Pressure Alt
234 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 2,172 ft (High - Reduced Performance)
ISA Deviation: +16.2°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KPWM 041750Z 0418/0518 26012G19KT P6SM VCSH SCT050 FM042200 31011G18KT P6SM SCT080 FM050200 VRB04KT P6SM SKC
Upcoming Changes (Next 12 Hours)
21:18Z BASE
+0h
VFR 260° 12 kt
Visibility: >6SM
22:00Z FM042200
+1h
VFR 310° 11 kt
Visibility: >6SM
02:00Z FM050200
+5h
VFR VRB 4 kt
Visibility: >6SM

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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  • • Click legend items to toggle data series
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  • • Units automatically converted to preferences
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
Active: 29
7,200 ft 150 ft ASP 95°
8.7 kt 5.0 kt
30° angle
18/36 5,001 ft 150 ft ASP 163°
1.2 kt 9.9 kt
97° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KPWM

8,177 observations | Sep 2025 - Jul 2026

Flight Rules Distribution

VFR
74.3%
MVFR
11.3%
IFR
8.3%
LIFR
6.1%

Portland International Jetport typically experiences VFR conditions 74.3% of the time, though instrument-rated pilots will find IFR weather present approximately 14.4% of observations. Prevailing winds are from the W averaging 7.6 knots. Calm conditions occur 15.7% of the time. Temperature extremes range from -21°C to 33°C, reflecting significant seasonal variation. The best months for VFR flying are July, February, September.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 7.6 kt
Maximum Recorded: 27 kt
Calm Winds: 15.7%
Direction Distribution:
E
9%
N
14.4%
S
14.4%
W
15.7%
NE
5%
NW
13.1%
SE
3.6%
SW
9.1%

Temperature Range

Average: 5.3°C
Range: -21°C to 33°C
-21°C 33°C

Visibility

Average: 9.1 SM
Below 3 SM: 4.5%
Fog Frequency: 3.1%

Best Months for VFR

July February September

Runway Wind Analysis

Runway 11/29
Favorable wind: 100%
Avg crosswind: 4.8 kt
Runway 18/36
Favorable wind: 100%
Avg crosswind: 4.5 kt

Statistics computed from 8,177 METAR observations (Sep 2025 - Jul 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.