KMTH METAR

Current observed weather at The Florida Keys Marathon International (MTH · KMTH), Marathon, FL, elevation 7 ft. Reported 21 Sep 2026 0253Z, decoded below with the past 24 hours of observations. · Open on the map

All of The Florida Keys Marathon International — runways, frequencies, charts and live weather

METAR observed 21 Sep 2026 0253Z

VFR

METAR KMTH 210253Z AUTO 08003KT 10SM FEW080 27/24 A2991 RMK AO2 SLP127 60000 T02670244 53007

Wind

080° at 3 kt

Visibility

10+ SM

Ceiling

Clear

Temp / Dewpoint

27° / 24°C

Altimeter

29.91"

Times are UTC (Zulu), as they appear in the report.

What it says

Field	Value	What that means
Flight category	VFR	Visual flight rules — ceiling above 3,000 ft and visibility greater than 5 SM.
Wind	080° at 3 kt	Direction is degrees true, as reported.
Visibility	10+ SM	10 SM is the maximum an automated US station reports; it means 10 or greater.
Ceiling	Unlimited	No broken, overcast or obscured layer reported.
Sky	Few at 8,000 ft AGL	—
Temperature	27°C (80°F)	—
Dewpoint	24°C (76°F)	—
Temp/dewpoint spread	2°C	A spread of 2°C or less favours fog or low stratus forming.
Altimeter	29.91 inHg	Set this in the Kollsman window; it is the field’s current sea level pressure setting.

VFRMVFRIFRLIFRhover for the full observation

Flight category

Wind · kt (gust shading)

Ceiling · ft (log scale, ▲ = unlimited)

Visibility · SM

All 24 stored observations time · category · wind · visibility · ceiling · temp

Time	Category	Wind	Visibility	Ceiling	Temp
0353Z	VFR	060° at 6 kt	10+ SM	Clear	27°C
0453Z	VFR	050° at 5 kt	10+ SM	Clear	28°C
0553Z	VFR	150° at 7 kt	10+ SM	9,000 ft	26°C
0653Z	VFR	170° at 6 kt	9 SM	11,000 ft	26°C
0753Z	VFR	100° at 5 kt	10+ SM	Clear	26°C
0853Z	VFR	070° at 4 kt	10+ SM	Clear	26°C
0953Z	VFR	130° at 5 kt	10+ SM	Clear	27°C
1053Z	VFR	Variable at 4 kt	10+ SM	5,000 ft	27°C
1153Z	VFR	000° at 0 kt	10+ SM	Clear	27°C
1253Z	VFR	000° at 0 kt	10+ SM	Clear	28°C
1353Z	VFR	000° at 0 kt	10+ SM	Clear	29°C
1453Z	VFR	000° at 0 kt	10+ SM	Clear	29°C
1553Z	VFR	120° at 4 kt	10+ SM	Clear	30°C
1653Z	VFR	130° at 5 kt	10+ SM	Clear	30°C
1753Z	VFR	160° at 5 kt	10+ SM	Clear	30°C
1853Z	VFR	180° at 6 kt	10+ SM	Clear	31°C
1953Z	VFR	Variable at 5 kt	10+ SM	Clear	29°C
2053Z	VFR	180° at 6 kt	10+ SM	Clear	29°C
2153Z	VFR	310° at 9-20 kt	10+ SM	3,700 ft	27°C
2253Z	VFR	000° at 0 kt	10+ SM	Clear	27°C
2353Z	VFR	340° at 4 kt	7 SM	9,500 ft	26°C
0053Z	VFR	060° at 4 kt	10+ SM	Clear	26°C
0153Z	VFR	000° at 0 kt	10+ SM	Clear	26°C
0253Z	VFR	080° at 3 kt	10+ SM	Clear	27°C

Frequently asked

What is the current METAR at KMTH?

The 21 Sep 2026 0253Z observation at The Florida Keys Marathon International reads: METAR KMTH 210253Z AUTO 08003KT 10SM FEW080 27/24 A2991 RMK AO2 SLP127 60000 T02670244 53007

Is KMTH VFR right now?

The Florida Keys Marathon International is reporting VFR. Visual flight rules — ceiling above 3,000 ft and visibility greater than 5 SM.

How often is the KMTH METAR updated?

Routine observations are issued hourly, usually in the 5 minutes before the hour. A SPECI is issued between them whenever conditions change significantly — a ceiling or visibility crossing a category threshold, a wind shift, or the onset of precipitation or a thunderstorm.

More about KMTH

Observations from the US National Weather Service Aviation Weather Center. Times are UTC (Zulu). For planning and education only — always confirm with an official preflight briefing.

Something here wrong or out of date? Report a data problem.