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Gullfoss rainbow in May 2027

Short answer: On 15 May 2027: Best rainbow from Lower path at the edge of the falls, 11:00–22:00 (strongest around 16:55), if the sun is out. Every day of May is in the table. Water level in May: low.

Gullfoss drops in two steps into a deep canyon, and its spray rises out of the gorge in front of the viewing paths. Rainbows appear down in the canyon when the sun is behind you.

DateUpper viewpointLower path
Sat 1 May 11:00–21:20 10:55–21:20
Sun 2 May 11:00–21:20 10:55–21:20
Mon 3 May 11:00–21:25 10:55–21:25
Tue 4 May 11:00–21:25 10:55–21:25
Wed 5 May 11:00–21:30 10:55–21:30
Thu 6 May 11:00–21:30 10:55–21:30
Fri 7 May 11:05–21:35 10:55–21:35
Sat 8 May 11:05–21:35 10:55–21:40
Sun 9 May 11:05–21:35 10:55–21:40
Mon 10 May 11:05–21:35 11:00–21:45
Tue 11 May 11:05–21:35 11:00–21:45
Wed 12 May 11:05–21:35 11:00–21:50
Thu 13 May 11:05–21:35 11:00–21:50
Fri 14 May 11:05–21:35 11:00–21:55
Sat 15 May 11:05–21:35 11:00–22:00
Sun 16 May 11:05–21:35 11:00–22:00
Mon 17 May 11:05–21:35 11:00–22:05
Tue 18 May 11:05–21:35 11:05–22:05
Wed 19 May 11:05–21:35 11:05–22:10
Thu 20 May 11:10–21:35 11:05–22:10
Fri 21 May 11:10–21:35 11:05–22:15
Sat 22 May 11:10–21:35 11:05–22:15
Sun 23 May 11:10–21:35 11:05–22:20
Mon 24 May 11:10–21:35 11:05–22:20
Tue 25 May 11:10–21:35 11:05–22:25
Wed 26 May 11:10–21:35 11:10–22:25
Thu 27 May 11:10–21:35 11:10–22:30
Fri 28 May 11:10–21:35 11:10–22:30
Sat 29 May 11:10–21:30 11:10–22:35
Sun 30 May 11:15–21:30 11:10–22:35
Mon 31 May 11:15–21:30 11:10–22:40

Hour by hour for your date Gullfoss tours

Questions

What time is the rainbow at Gullfoss in May 2027?

On 15 May 2027: Best rainbow from Lower path at the edge of the falls, 11:00–22:00 (strongest around 16:55), if the sun is out. Every day of May is in the table. Water level in May: low.