Het weer in Vík í Mýrdal in september

Regulars are specific this month still demands real preparation for high wind and rain even at the height of summer, campers describing having to pitch and strike a tent in the rain, one traveler reporting gusts near 110 kph passing through nearby in a recent June. Our row backs that cold, genuinely wet read, 8.7C reading as a chilly 7C, over 7.3C nights feeling 4C, with a substantial 118.2mm of rain across 15.5 days and a real 21.6 kph wind. Regulars are consistent nearly 20 hours of daylight is the real draw of this month regardless of the weather, campsites here running first-come without reservations except around the occasional local festival. The sea sits at a cold 9.5C. The record: 11.2 hours of sun, humidity 84.1 percent and AQI 33.

Forum posters describe January as genuinely extreme, with average temperatures around 0C but any given day capable of swinging anywhere from -10C to 10C, and snow, sleet, hail and rain all realistic - sometimes simultaneously - alongside frequently high wind. Posters note the south coast toward Vik rarely gets fully snowed in for long, though a mountain pass just before town and the Hellisheiði pass east of Reykjavik are named as the two spots most likely to see serious snow and ice. Posters are direct that driving conditions can swing from entirely possible to genuinely impossible within the same trip, with road closures a real risk during a storm. Posters consistently recommend wind- and waterproof outer layers plus warm insulation underneath, and flag extremely limited daylight (as little as 4.5 hours) as a real planning constraint for a January visit.

Vik's forum calls July Iceland's best weather month on average, but regulars are quick to add that "best" still means highly variable — sun and reasonable temperatures one day, wind and rain the next. Long bright evenings and good road conditions make it a solid month for a road trip regardless, as long as layers and rain gear come along.