Daylight hours
Why "ususable daylight" matters
Astronomy says Reykjavík has 21 hours of sun on June 21. Useful driving light is closer to 19 hours — you lose time to true sunrise/sunset gradients and winter-style low sun angles. In November, the sun barely scrapes the horizon for 5 hours; the rest is civil twilight at best.
The hour tables in this tool reflect usable driving hours (sun above ~5° above horizon), not the full astronomical day. That distinction matters more than people expect — a December trip planned on the "5.7 hours daylight" figure becomes a stressful race to finish driving.
FAQ
Can I really drive at midnight in June?
Yes — it's broad daylight until well past 11pm. Some tour buses start the south coast at 4pm specifically to catch midnight sun. Just remember most hotels check you in only between 14:00 and 22:00.
Is there a polar night in Iceland?
No. Even in December, Reykjavík gets about 4 hours of direct sun. The Westfjords get slightly less, but it never reaches zero — Iceland is just below the polar night line.
Does latitude matter much?
About 30 minutes more daylight in the north on the longest day, and about 30 minutes less on the shortest. The bigger variable is weather — cloud cover cuts daylight by an hour or two of effective driving.