Glass Breakwater, Guam

No town nearby. No stay checked for this site yet: Agat, 9 km away, is the nearest town we list. Nearest airport: GUM (GUM), 16 km.

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About Glass Breakwater

Facing, offshore wind, exposure, level and swell range are estimated. Facts: verified, surf details estimated.

The spot faces N (340°), so it takes swell from the N. The wind blows offshore from the S (160°). It is sheltered to the open swell. It suits intermediate surfers and up. It works in 3–12 ft of swell. The sea is about 28°C in January, its coldest month (no wetsuit), and 30°C in June, its warmest (no wetsuit). For intermediate surfers the best month is usually September, with about 2 good days in 7. From the weather of past years. No town nearby. No stay checked for this site yet: Agat, 9 km away, is the nearest town we list. Nearest airport: GUM (GUM), 16 km. Within 5 km we also list 2 surf spots and 9 dive sites.

Water about 30°C: no wetsuit. Typical sea temperature for the time of year, not a forecast.

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From Chicago: about 24 h 55 door to door, one way. An estimate; the journey never changes the score.

Fly. Chicago O'Hare International Airport (ORD) to GUM, changing at Daniel K. Inouye International Airport (HNL).
See flights ORD → GUM · Skyscanner from about £670 returnAd
Getting there. 35 min from the airport to Glass Breakwater.
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Accommodation.
No town nearby
No stay checked for this site yet: Agat, 9 km away, is the nearest town we list. Nearest airport: GUM (GUM), 16 km.
Hire and lessons.
Surf lessons in Glass Breakwater · GetYourGuideAd Board and wetsuit hire in Glass Breakwater · GetYourGuideAd

Everything else for the trip

Where it is

Glass Breakwater on Google Maps · Directions

Surf spot

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Forecast

Glass Breakwater does not suit beginners. This is the forecast for intermediates, so you can see what it does.

The score for intermediates, coloured as on the area pages:GoodFairPoorToo bigToo small

Forecast and score for intermediate surfers at Glass Breakwater, each day
Day	Scorefor Intermediate	Swell	Energy	Wind	Temp
Sun 18Oct	30, poor	5 ft8 s	232kJ	wind from the south-east, 35 knots, offshore	28°C
Mon 19Oct	31, poor	5 ft8 s	258kJ	wind from the south-south-east, 19 knots, offshore	27°C
Tue 20Oct	47, fair	4 ft8 s	209kJ	wind from the east-south-east, 8 knots, offshore	30°C
Wed 21Oct	32, poor	4 ft8 s	205kJ	wind from the north-east, 10 knots	30°C
Thu 22Oct	25, poor	4 ft9 s	219kJ	wind from the north-north-east, 11 knots	29°C
Fri 23Oct	59, good	3 ft9 s	187kJ	wind from the east-south-east, 8 knots, offshore	29°C
Sat 24Oct	69, good	4 ft10 s	337kJ	wind from the south-east, 10 knots, offshore	30°C
Sun 25Oct	40, fair	3 ft11 s	160kJ	wind from the east-north-east, 9 knots	30°C
Mon 26Oct	28, too small	3 ft7 s	64kJ	wind from the east-north-east, 10 knots	30°C
Tue 27Oct	16, too small	2 ft8 s	48kJ	wind from the north-north-east, 7 knots	29°C
Wed 28Oct	0, poor	–	–	–	–

Day scores here are the conditions out of 80; a trip's score on the results is the same conditions out of 100. The journey never scores. The forecast reaches about 10 days. Energy is the swell's power in kJ per metre of wave, from its height and interval: it grows with the square of each, so a long-period swell hits far harder than a short one the same size. Wind is in knots: 10 kn is about 19 km/h. The arrow points where the wind blows to; offshore wind, blowing from the land out to sea, is green and says so.

Your trip, day by day

6 nights from Mon 19 Oct, leaving from Chicago, for intermediate surfers. Change dates

Mon 19 Oct
Travel out
Fly ORD to GUM, changing at HNL, then 35 min by road. About 24h 55 door to door
Tue 20 Oct
Surf Glass Breakwater
Best 16:00 to 19:00 local time: 4 ft at 8 s, offshore wind.
Wed 21 Oct
Rest day
Nothing worth paddling out for: the best window scores 34 of 80.
Thu 22 Oct
Rest day
Nothing worth paddling out for: the best window scores 32 of 80.
Fri 23 Oct
Surf Glass Breakwater
Best 13:00 to 16:00 local time: 3 ft at 9 s, offshore wind.
Sat 24 Oct
Surf Glass Breakwater
Best 13:00 to 16:00 local time: 4 ft at 10 s, offshore wind.
Sun 25 Oct
Travel home
Fly ORD to GUM, changing at HNL, then 35 min by road. About 24h 55 door to door

Rough cost

About £955–£1,895 each for 6 nights, 2 people sharing a room. A guide from typical prices, not a quote: check the real prices before you book. No town nearby, so no stay is in it.

Rough cost per person for this trip
What	How we worked it out	Each
Flights	return ORD to GUM, estimated from distance and season, changing at HNL, full-service airlines, with a hold bag	£670–£1,390
To the UK airport	parking or the train, there and back	£35–£65
Taxi	airport and back, shared	£30–£45
Food	7 days eating out	£155–£290
Board and wetsuit	5 days, or about £85 to fly your own	£65–£105
Total		£955–£1,895

Prices from public sources, checked in 2026: where they come from. Lessons, lift-pass deals and insurance are extra.

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