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The autumn colours are at their absolute best in September, so it is the ideal time to enjoy them. This is the time to driving to all the beautiful natural highlights along the Diamond Circle. Experience the colors in Ásbyrgi national park, easy hike to Waterfall Dettifoss and waterfall Goðafoss. Take whale watching tours from Húsavík and not to mention explore Lake Mývatn and surroundings with lava formations, red and yellow colors all around. And to make it all perfect, the Northern lights might start dancing above you.  


Temp 6°C / 42.8F

Average high 10°C / 50F

Average low 4°C / 39.2F

Precipitation 39mm/day

Snow days 1

Daylight hours 11

What to expect

Keep in mind that the weather can change quickly so it is important to keep up with the weather forecast and driving conditions. In September, farmers round up their sheep from the highlands so keep an eye out for herds of sheep. It can be both windy and rainy so be sure to pack appropriate outerwear. Autumn equinox is on the 22nd or 23rd of September.

What to pack? 

  • Insulated jacket
  • Warm layers (wool sweater, down/primaloft jacket, warm socks etc.)
  • Ice cleats/ice grips/anti-slip soles (even if you are only staying in town)
  • Light layers (long sleeve tops, soft shells etc.)
  • Fleece jacket/lightweight wool sweater
  • Rainproof/windproof jacket and pants
  • Sturdy walking shoes with a good tread/grip
  • Sunglasses (during spring/summer it’s bright 24/7 and during winter the sun rises low an reflects from the snow, if there is any).
  • Gloves
  • Scarves
  • Hat (toque/beanie)
  • Thermal underwear (specifically for highland travel/activities)
  • Waterproof hiking boots (specifically for highland travel/activities)
  • Warm socks (specifically for winter and highland travel/activities)
  • Swimsuit
  • Quick-dry towel (for visiting pools and hot springs - towels are available for rent at swimming facilities)
  • Eyeshades (some find it hard to sleep when there’s daylight up to 24/7)
  • Sunscreen


September is the season for

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