Boulder

CO
40.0561°, -105.3000° Directions ↗

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Showing Paragliding — switch wings up top ↑
Not flyable
Medium confidence · · Run: HRRR
The sun has set — no daylight left to fly
NESW 296° WNW
Current conditions
Flyability score
10
/100 · paragliding
Wind
8
mph base
Gusts
8
mph
Direction
WNW
296°
Aloft
7
NW @ridge
Thermals
Good
base ~7341ft
Temp
79°
F
Cloudbase
13,591
ft MSL
Elevation
6,250
ft MSL
Sunrise
5:58 AM
local
Sunset
8:17 PM
local
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Where it is

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Flyable Caution / slim window Not flyable
What we look for at Boulder

Wind direction

NE (45°) → SE (135°)

The wind must blow from within this arc. Direction is the same for both wings.

Ideal speed

3–10 mph

Ceiling · Paragliding

≤ 19 mph base · gusts ≤ 23

Top of the range for paragliding (any rating) — switch wings up top to compare. Hang gliders hold roughly 10 mph more than paragliders.

Boulder's Wonderland Lake site (RMHPA) — four east-facing launches that fly best in east wind, with NE–SE all workable and south sometimes okay. Weak morning lift builds to strong midday thermals (advanced only mid-day), then a gentler evening cycle as shade comes in. North wind is dangerous — rotor can shut the site down — and a westerly shift risks going over the back into the Rockies' lee. P2/H2 minimum with a high-altitude endorsement (launch ~6,250 ft).

Window data compiled from rmhpa.org — public site guides and club resources.

Next 7 days How calls are made

Thursday Flyable flyable 7am–8am
5a
4g5
N
6a
8g11
NNE
7a
1g6
E
8a
3g4
ESE
9a
3g12
SE
10a
5g13
NNE
11a
12g15
WNW
12p
12g18
WNW
1p
10g15
W
2p
9g12
ENE
3p
6g13
NNE
4p
7g14
ENE
5p
6g7
ENE
6p
9g15
ESE
7p
8g10
ENE
8p
3g4
WNW
Flyable 4pm–7pm — best around 5pm: 6 mph ENE, gusts 7. 2 clean hrs, the rest borderline.
🌅 Wonder windGlass-off likely 6pm–7pm — smooth, light ENE ~8 mph, clear evening sky, the day heated up well.
✓ Light, smooth wind✓ Straight in the window– Wind dying off into evening✓ Clear skies (radiative cooling)✓ Day built a thermal layer
Friday Flyable flyable 8am–1pm
5a
7g8
W
6a
4g4
WNW
7a
5g5
NNW
8a
2g2
ENE
9a
5g5
E
10a
5g5
E
11a
6g6
E
12p
8g8
ENE
1p
9g10
NE
2p
6g14
E
3p
7g11
ESE
4p
12g14
NNE
5p
10g13
NNE
6p
4g7
ENE
7p
5g5
ESE
8p
3g5
S
Flyable 8am–7pm — best around 9am: 5 mph E, gusts 5. 11 clean hrs, the rest borderline.
🌅 Wonder windGlass-off likely 6pm–7pm — smooth, light ESE ~5 mph, clear evening sky, the day heated up well.
✓ Light, smooth wind✓ Straight in the window✓ Wind dying off into evening✓ Clear skies (radiative cooling)✓ Day built a thermal layer
Saturday Flyable flyable 8am–3pm
5a
5g5
NNW
6a
3g3
N
7a
2g2
N
8a
2g3
ENE
9a
4g5
ENE
10a
5g6
ENE
11a
6g7
ENE
12p
7g10
ENE
1p
8g13
ENE
2p
8g12
ENE
3p
10g12
ENE
4p
8g13
ENE
5p
8g8
ENE
6p
8g9
ENE
7p
4g14
ENE
8p
3g11
E
Flyable 8am–6pm — best around 9am: 4 mph ENE, gusts 5. 10 clean hrs, the rest borderline.
Sunday Caution workable 6am–10am
6a
2g8
WSW
7a
1g7
SW
8a
1g7
ESE
9a
3g9
E
10a
4g12
E
11a
6g16
E
12p
7g19
E
1p
7g20
ENE
2p
7g21
ENE
3p
6g20
ENE
4p
5g19
ENE
5p
4g17
ESE
6p
5g14
SE
7p
5g12
SE
8p
4g10
SE
Borderline only 6am–10am — best around 8pm: 4 mph SE, gusts 10. All borderline — fly it with a close eye.
🌅 Wonder windGlass-off possible 7pm–8pm — smooth, light SE ~4 mph (a touch cross), clear evening sky, the day heated up well.
✓ Light, smooth wind– Edge of the window– Wind dying off into evening✓ Clear skies (radiative cooling)✓ Day built a thermal layer
Monday Not flyable no window
6a
4g12
WSW
7a
2g13
WSW
8a
1g16
SSW
9a
2g18
E
10a
4g19
ENE
11a
7g20
ENE
12p
8g20
ENE
1p
8g20
ENE
2p
8g20
E
3p
7g20
E
4p
5g22
NE
5p
7g24
NNE
6p
9g25
N
7p
6g24
NNW
8p
4g23
W
No usable window today.
Tuesday Not flyable no window
6a
7g27
NNE
7a
6g26
NNE
8a
6g23
NNE
9a
6g21
N
10a
4g21
NNE
11a
3g21
NE
12p
3g21
ENE
1p
4g20
E
2p
5g18
E
3p
6g17
E
4p
7g17
E
5p
7g17
E
6p
6g17
E
7p
5g17
E
8p
4g15
ENE
No usable window today.
Wednesday Not flyable no window
6a
4g12
NNW
7a
4g13
NNW
8a
4g13
N
9a
4g14
N
10a
5g15
NNE
11a
5g17
NNE
12p
5g18
NNE
1p
6g19
NE
2p
5g20
NE
3p
5g20
NE
4p
5g20
NNE
5p
4g19
NNE
6p
3g19
NNE
7p
2g18
N
8p
1g17
NW
No usable window today.
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Conditions are an automated estimate from public forecast models, not a go/no-go call. Always check the sky, talk to locals, and fly within your rating. You are responsible for your own safety.