Bethesda, MD · mixed · paved

Georgetown Branch Trail

4.2 mi Out-and-back 112 ft gain

Interrupted by the Purple Line

Live · updated Nov 7, 3:37 AM ET

Today's verdict

Marginal conditions — get the road bike out if you have to.

41 mph wind — gusty and hazardous on exposed bridges and overpasses.
56°F air — right in road cycling's sweet spot

40 /100

48 Bike commuting

40 Road

54 E-bike

62 Bike-share

Best for bike-share touring today

Route map

Orange marker is the start. Click the map to enable scroll-zoom — the polyline is approximate; use Ride with GPS or Komoot for turn-by-turn.

Atmosphere

Air temp

56°F

Cloudy
Wind

41 mph

NW
Rain

1%

Next 24h: 0.00"
Air quality

AQI 18

O3 · Good
Humidity

58%

Surface & daylight

Pavement

dry

paved surface
Sunrise

6:42 AM
Sunset

5:01 PM

805 min remaining

Best time today

9 AM looks best — 50°F · 13 mph NW wind · sunny. 10 AM is a close second (78/100).

4 AM

47°

Mostly Cloudy

12 mph NW

5 AM

45°

Partly Cloudy

10 mph NW

6 AM

44°

Mostly Sunny

8 mph NW

7 AM

43°

Sunny

9 mph NW

8 AM

45°

Sunny

10 mph NW

9 AM Best

50°

Sunny

13 mph NW

10 AM

52°

Mostly Sunny

13 mph NW

11 AM

53°

Mostly Sunny

13 mph NW

12 PM

55°

Mostly Sunny

13 mph NW

1 PM

57°

Mostly Sunny

14 mph W

2 PM

57°

Mostly Sunny

15 mph W

3 PM

58°

Mostly Sunny

16 mph W

4 PM

56°

Mostly Sunny

16 mph W

Wind on this route

41 mph tailwind outbound — expect a 41 mph headwind on the return.

Currently 41 mph from the NW (310°). Relative to this ride's overall bearing, a quartering tailwind.

Leg 1 Bearing 56° · crosswind 0.4 mi
Leg 2 Bearing 26° · crosswind 0.4 mi
Leg 3 Bearing 45° · crosswind 0.4 mi
Leg 4 Bearing 65° · quartering tailwind 0.4 mi
Leg 5 Bearing 75° · quartering tailwind 0.4 mi
Leg 6 Bearing 96° · quartering tailwind 0.4 mi
Leg 7 Bearing 46° · crosswind 0.4 mi
Leg 8 Bearing 63° · quartering tailwind 0.3 mi

Elevation profile

154 ft gain 177 ft loss Max 361' Min 223' 4 mi sampled

Score breakdown

56°F air Right in road cycling's sweet spot

+10

−

Exposed + strong wind mixed traffic in 20+ mph wind — gusts near passing vehicles are the hazard.

-4

−

41 mph wind Gusty and hazardous on exposed bridges and overpasses.

-36

Quartering tailwind 41 mph tailwind outbound — expect a 41 mph headwind on the return.

Pavement: dry Clean dry pavement — maximum grip.

AQI 18 Clean air

Advisories & nearby alerts

NWSTest Message

About this route

Distance: 4.2 mi one-way (double for round-trip)
Elevation gain: 112 ft
Surface: paved
Shape: Out-and-back
Traffic exposure: mixed
Activities: road cycling · e bike · commuting · bike share-touring
Cycle network: RCN · route GBT
Start: 38.9826, -77.0916
City hub: Bethesda, MD
OSM: relation 7178364 , relation 12048746

Description sourced from the OSM relation description tag.