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// VTSM · Samui International Airport · Na Thon (Ko Samui Island)

// STALE Observation is 2h 21m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 2h 21m ago · STALE

VTSM

Samui International Airport
CAT VFR
WIND 270° / 5 kt
VIS 6+ SM
CEILING Few/scattered only
T/Td 31°C / 24°C
ALTIM 29.80 inHg
ELEV 64 FT
9.5478°N / 100.0620°E
LOCATION · Na Thon (Ko Samui Island), TH
N
WIND
270°5 kt
VTSM · 64 FT
© OSM · CartoDB

// Current + 24h forecast · METAR loaded · TAF loading…

METRIC
NOW · 15Z
+6H
+12H
+18H
WIND
270°/5
 
 
 
VIS
6+ SM
 
 
 
CEILING
—
 
 
 
LAYERS
FEW020
 
 
 
T / Td
31 / 24
 
 
 
ALTIM
29.80"
 
 
 

Loading TAF forecast…

// Interpretation

VFR with light winds at 270°/5 kt. Visibility 6+ SM and a few at 2,000 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR VTSM 111500Z 27005KT 9999 FEW020 31/24 Q1009 NOSIG

VTSM · day 11 at 15:00 UTC · wind from 270° at 5 kt · visibility 6+ SM · a few clouds at 2,000 ft · temp 31°C / dewpoint 24°C · altimeter 29.80" Hg

// Runway analysis · computed from current METAR wind

Wind 270° @ 5 kt
1 USABLE · 1 AVOID
N
WIND
270°5 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
35★ HDG 350° H1 kt X5 kt LEFT PRIMARY · 6,759'
TAILWIND ENDS · AVOID 1 ends
17 HDG 170° T1 kt X5 kt RIGHT —
Pattern altitude: 1,064 ft MSL (1,000 ft AGL). Verify pattern direction and altitude with the chart supplement before flying. // On calm winds (<3 kt), all runways are usable — favor the longest or whatever the pattern calls for.

// Density altitude · ISA +16°C

2,200FT
+2,136 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +400 FT
2,900 2,250 1,600
24h AGO18h12h6hNOW
FIELD ELEV64 FT OAT+31°C ISA DELTA+16°C PRESSURE ALT188 FT
// Performance equivalent Your aircraft will perform as if it's at a field 2,200 ft high on a standard ISA day — that's +2,136 ft above VTSM's actual elevation.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+22%
-15%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+15%
-10%
Light jetCJ4, Phenom 300, M2
+9%
-7%

Approximate using ~10% perf loss / 1,000 ft DA for normally aspirated, scaled by powerplant type. Verify with your aircraft's POH for accurate numbers — especially above 5,000 ft DA where these rules of thumb diverge.

// Cloud layers · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 15,721 FT FEW020 VTSM ELEV · 64 FT
// Reported layers (highest → lowest)
FEW020
Few · base 2,000 ft AGL · ~1–2 oktas
// Computed
CEILING— HIGHEST LAYER2,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL15,721 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+7)

23:07ZSUNRISE
05:26ZSOLAR NOON
11:45ZSUNSET
12:08ZCIVIL END
CURRENT17:21Z DAYLIGHT REMAINING18h 23m VFR NIGHT BEGINS12:08Z (18h 46m) DAY LENGTH12h 38m
Waning Crescent
ILLUMINATION10% MOONRISE20:37Z MOONSET09:15Z FULL MOON IN18 days

// Nearest reporting stations

No nearby reporting stations found within 200 NM of VTSM.

// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay

© OpenStreetMap · CartoDB · OpenAIP
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