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LAUNCH CODE AVIATION FORECAST

SAN FRANCISCO INTL KSFO

Aviation Weather Report for San Francisco Intl, California

Nearby current conditions

Current Conditions at
San Francisco Intl (KSFO)
66°F
Mostly Clear

Observed Oct 12, 04:56 PM PDT
13 minutes ago

Rel. humidity
49%
Dew point
46°F
Visibility
10 mi
Pressure
29.90 inHg
Flight rule
VFR
Sun AlmanacOct 12 · PDT
Naut. dawn
6:17 AM
Civil dawn
6:48 AM
Sunrise
7:14 AM
Sunset
6:38 PM
Civil dusk
7:04 PM
Naut. dusk
7:34 PM
Approximate - station coordinates
Wind Data
12 mph
250° from

Cloud level(s): Few at 2800 ft AGL

0.00 nautical miles from forecast point · CA, US · Elevation 6.6 ft · Times in forecast location’s zone

Raw METAR

KSFO 122356Z 25010KT 10SM FEW028 19/08 A2990 RMK AO2 SLP125 T01940078 10206 20161 55001 $

In the Vicinity

Coastal Flood Advisory issued October 12 at 2:53PM PDT until October 13 at 3:00PM PDT by NWS San Francisco CA

Nearest available reports, up to two hours old. Nearby observations may differ from conditions at your launch site.

Weather in California

Extended Forecast · Every 3 Hours

Aviation Weather Forecast at San Francisco Intl, California

NBS V5.0 · Issued Oct 12, 2026 at 23:00 UTC
Wind
mphknots
Temp
°F°C

Three-hour spacing throughout.

Supplemental guidance — not a go/no-go decision. Do not rely on this page alone. Obtain a preflight briefing and verify actual conditions. Favorable symbols and phrases only reflect your selected limits. Pilot responsibility & terms

Switch to 24 Hour ForecastAll times UTC
Forecast for SAN FRANCISCO INTL. Values align with the valid time in each column. N/A means unavailable.
DATE VALID TIMETue Oct 13Wed Oct 14Thu Oct 15
HOUR UTC03:0006:0009:0012:0015:0018:0021:0000:0003:0006:0009:0012:0015:0018:0021:0000:0003:0006:0009:0012:0015:0018:0021:00
Sky conditionsCloud coverClear1%Mostly clear16%Mostly clear14%Mostly clear22%Mostly clear16%Clear4%Clear1%Clear0%Mostly clear13%Clear8%Mostly clear15%Mostly clear23%Mostly clear17%Clear11%Clear4%Clear1%Clear2%Clear3%Clear3%Clear7%Clear7%Clear1%Clear0%
Temperature°F5654535252617067595755535363727159575554556982
Heat index°FNot available———————————————————————
Wind chill°FNot available———————————————————————
Wind directionFrom / degreesW280°W280°○Calm○CalmSE140°NE50°NNW330°W280°W280°W260°WSW250°SSW210°SE140°○CalmWNW300°W280°W280°○Calm○Calm○CalmENE60°NE40°○Calm
Wind speedmph810036102215763503137000570
Wind gustsmph832258132417863526148322696
CeilingFeet AGLUnlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.
IFR ceiling chanceCeiling below 1,000 ft / %1247500013816194000369400
Lowest cloud baseFeet AGLUnlim.3,00027,00010,0009,00022,00026,00025,00016,00016,00015,00024,0009,00014,00019,000Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.Unlim.
VisibilityStatute miles10.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.09.010.010.010.010.010.010.0
IFR visibility chanceVisibility below 3 mi / %00000000002N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
Flight categoryCeiling + visibilityVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFRVFR
Precipitation chance6 hours ending / %01000000000N/A
Precipitation amount6 hours ending / inches0.000.000.000.000.000.000.000.000.000.000.00N/A
Thunderstorm chance3 hours ending / %00000000000000000000000
Rain probabilityIf precipitation occurs / %00000000000000000000000
Snow probabilityIf precipitation occurs / %00000000000000000000000
Snow amount6 hours ending / inches0.00.00.00.00.00.00.00.00.00.00.0N/A
Freezing rainIf precipitation occurs / %00000000000000000000000
Ice amount6 hours ending / inches0.000.000.000.000.000.000.000.000.000.000.00N/A
Sleet probabilityIf precipitation occurs / %00000000000000000000000
Mixing heightFeet AGL80070040040060011001800900500400300300300700900400400400300300300600900
Transport wind directionMixed layer / from degreesW270°W280°W260°W260°E90°NE40°N350°W280°W280°W270°WSW250°SW230°SSW200°N0°WNW300°W280°W280°W270°W260°NNE30°ENE60°NE50°N0°
Transport wind speedmph / mixed layer965336102215763525138532576
Relative humidityPercent8386868986543245606980868363434472778080774526
Dew point°F5150494948443945454749494850484850504948484744
Temp / dew spread°F544341731221410645132423976672238
VFRMVFRIFRLIFRN/A: unavailable · Unlim.: unlimited ceiling · AGL: above ground level
About this forecast

Flight category uses the more restrictive of forecast ceiling (CIG) and visibility. Lowest cloud base is shown separately and is not substituted for ceiling. Both inputs must be available to assign a category.

Rows marked 1 hour describe only the hour ending at that column. Six-hour blocks cover the displayed columns ending at their valid time. Edge blocks may cover only part of the displayed table; hover to see their full time range. A six-hour precipitation limit applies to all covered columns, without dividing its probability or amount. Other personal limits compare the forecast value at each column time, not every moment between forecasts.

Air Sports Flying Conditions compares only the limits you enable: a thumbs up means all selected limits are met, a thumbs down means at least one is exceeded, and a question mark means required data is missing. Click a symbol for details. This is a personal forecast comparison, not a flight clearance.

Snow, freezing-rain, sleet, and rain probabilities describe precipitation type if precipitation occurs. Snow and ice accumulation periods are specified in each row. Mixing height and transport winds describe the atmospheric mixing layer, not thermal strength or winds at a specific flight altitude.

Curves connect model forecast points for readability and do not add intermediate forecast values. Wind arrows point toward the direction of travel; compass labels show where the wind comes from. Wind chill and heat index are shown only in their applicable ranges. A dash in those rows means not applicable; N/A means required data is unavailable. Compare this guidance with observations, official aviation forecasts, and your preflight briefing.

Your flying conditions

Choose what matters to your flying. Only enabled limits are checked.

Limits are inclusive and saved in this browser. Blank minimum or maximum means no limit on that side. These preferences do not determine whether a flight is safe.

Use / forecast elementMinimumMaximum

Limits retain their labeled periods in both views. A required period unavailable in this product gives a question mark. Hourly limits are separate from three- and six-hour limits. Direction ranges can cross north, for example 315° to 45°. Unknown required data gives a question mark, never a thumbs up.

Personal conditions

    This checks your selected forecast limits, not all factors affecting a flight. Values apply at model forecast times; six-hour precipitation covers the full indicated period.
    View source NBS bulletin
     KSFO    NBM V5.0 NBS GUIDANCE    10/12/2026  2300 UTC
 DT /OCT  13               /OCT  14                /OCT  15               
 UTC  03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 
 FHR  04 07 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 
 TXN           51          71          52          73          54         
 XND            2           3           3           2           2         
 TMP  56 54 53 52 52 61 70 67 59 57 55 53 53 63 72 71 59 57 55 54 55 69 82
 TSD   2  1  1  1  1  2  3  3  4  3  1  2  2  3  2  3  3  3  2  3  2  3  4
 DPT  51 50 49 49 48 44 39 45 45 47 49 49 48 50 48 48 50 50 49 48 48 47 44
 DSD   2  2  1  2  3  4  3  3  2  2  2  3  3  3  4  4  4  4  4  4  5  3  4
 WBG  54 53 51 50 51 57 63 59 54 53 52 51 51 60 67 63 55 54 53 52 53 63 71
 SKY   1 16 14 22 16  4  1  0 13  8 15 23 17 11  4  1  2  3  3  7  7  1  0
 SSD   1 31 14 27 21  4  2  1 27 16 20 24 18 11  2  2  4  5  7  8  8  3  1
 WDR  28 28 25 25 14  5 33 28 28 26 25 21 14  3 30 28 28 26 24  6  6  4 35
 WSP   7  1  0  0  3  5  9 19 13  6  5  3  4  0  3 11  6  0  0  0  4  6  0
 WSD   3  3  2  2  3  3  3  2  2  3  3  3  2  2  3  2  2  2  2  3  3  3  4
 GST   7  3  2  2  4  7 11 21 15  7  5  3  4  2  5 12  7  3  2  2  5  8  5
 GSD   3  2  2  2  3  5  4  3  3  3  2  3  2  2  2  2  2  1  1  2  2  4  4
 P06      0     1     0     0     0     0     0     0     0     0     0   
 P12            0           0           0           0           0         
 Q06      0     0     0     0     0     0     0     0     0     0     0   
 Q12            0           0           0           0           0         
 DUR            0           0           0           0           0         
 T03   0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 T06      0     0     0     0     0     0     0     0     0     0     0   
 T12            0           0           0           0           0         
 PZR   0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 PSN   0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 PPL   0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 PRA   0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 S06      0     0     0     0     0     0     0     0     0     0     0   
 SLV  58 59 58 57 58 57 58 65 73 76 76 79 85 86 90 92 96100100100100100100
 I06      0     0     0     0     0     0     0     0     0     0     0   
 CIG -88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88
 IFC   1  2  4  7  5  0  0  0  1  3  8 16 19  4  0  0  0  3  6  9  4  0  0
 LCB -88 30270100 90220260250160160150240 90140190-88-88-88-88-88-88-88-88
 VIS 100100100100100100100100100100100100100100100100 90100100100100100100
 IFV   0  0  0  0  0  0  0  0  0  0  2-99-99-99-99-99-99-99-99-99-99-99-99
 MHT   8  7  4  4  6 11 18  9  5  4  3  3  3  7  9  4  4  4  3  3  3  6  9
 TWD  27 28 26 26  9  4 35 28 28 27 25 23 20 36 30 28 28 27 26  3  6  5 36
 TWS   8  5  4  3  3  5  9 19 13  6  5  3  4  2  4 11  7  4  3  2  4  6  5
 SOL   1  0  0  0  6 53 71 35  2  0  0  0  7 51 71 43  3  1  0  0  0 19 70

    Pilot responsibility & use of this forecast

    Do not use this page as your only source for a flight decision. Launch Code provides supplemental, automated weather guidance. It is not a substitute for a complete preflight weather briefing, current observations, applicable aviation forecasts and advisories, or your assessment of actual conditions at the launch site and along your intended route.

    You are responsible for deciding whether to launch, continue, divert, or land. Fly only within your training, experience, personal minimums, aircraft limitations, and applicable operating rules and qualifications. Verify the forecast location, issue time, and valid times. Recheck conditions before departure and throughout the flight; delay or cancel when conditions are uncertain or unsuitable.

    Forecasts may be incomplete, delayed, incorrect, or different from the weather you encounter. Conditions can change rapidly. Missing data or a hazard not shown on this page does not mean that the hazard is absent. Air Sports Net does not guarantee the accuracy, completeness, timeliness, or suitability of this guidance for any flight.

    A favorable symbol, color, or phrase is not a recommendation or authorization to fly. Personal-limit results compare only the available forecast values against the checks you enable. They do not evaluate every risk. Phrases such as “Go Fly” are optional display captions, not operational advice.

    Obtain a preflight briefing and consult additional aviation weather sources. In the United States, visit Flight Service or call 1-800-WX-BRIEF. Use of this forecast is at your own risk and is subject to the Air Sports Net Terms of Use.

    Graphics are not to scale and should not be scaled for interpolation.