Late summer · Weather & things to do
Mývatn in August
Little changes in Mývatn from July: highs stay near 48°F (9°C), lows near 40°F (4°C), and about 3.3 in (83 mm) of rain falls.
At 51/100 for comfort (3rd of 12), it's one of the best months to visit.
- Avg high
- 48°F (9°C)
- Avg low
- 40°F (4°C)
- Rain
- 3.3 in (83 mm)
- Humidity
- 90%
- Cloud cover
- 83%
- Daylight
- ~16 h 22 min
- Comfort score
- 51/100 · Fair
What August feels like
Cool days top out near 48°F (9°C), better for brisk walks than lingering outside.
Lows average 40°F (4°C).
Showers are part of the month, adding up to about 3.3 in (83 mm).
Expect plenty of overcast days, with cloud cover near 83%.
Long days help: there are roughly 16 h 22 min of daylight mid-month.
Plan around August
August is one of Mývatn's best months on the climate data.
- Last of the best-scoring months: by September, the score drops to 40/100.
- Comfort holds steady from July (53 → 51/100).
- August sits inside the Jun – Sep window our Iceland Ring Road route recommends.
What to pack for August
- Insulated jackethighs only 48°F
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost picks involve some walking
What to do in Mývatn in August
Weather can go either way, so the picks below mix open-air spots with indoor backups.
Daddi's Pizza
Simple Reykjahlíð pizzeria popular with campers.
Why now A warm sit-down stop when highs sit around 48°F.
Skútustaðagígar
Pseudocraters along the southern lake shore with an easy path.
Krafla and Víti crater
Volcanic area with the turquoise Víti crater lake and Leirhnjúkur lava fields.
Why now Our curated notes say it's best summer.
Vogafjós Farm Resort
Café in a working cowshed serving geyser bread and smoked trout.
Why now Somewhere to warm up between colder walks.
Mývatn Nature Baths
Milky-blue geothermal lagoon with views over the lava fields.
Nearby in August
- Jökulsárlón in August~108 mi · highs 49°F, 5.7 in rain · similar daytime temperatures, wetter
- Vík in August~162 mi · highs 55°F, 6.5 in rain · 3°C (6°F) warmer by day, wetter
- Reykjavík in August~177 mi · highs 56°F, 4.8 in rain · 4°C (8°F) warmer by day, wetter
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~487 m to Mývatn's ~276 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Mývatn in August: quick answers
Is August a good time to visit Mývatn?
Yes. On the climate data it's one of the best months, scoring 51/100. Expect highs of 48°F (9°C) and 3.3 in (83 mm) of rain. August is inside the Jun – Sep window our Iceland Ring Road route recommends.
How cold is Mývatn in August?
Average highs are 48°F (9°C) and average lows 40°F (4°C), making it the 2nd-warmest month by daytime highs.
Does it rain a lot in Mývatn in August?
Some: about 3.3 in (83 mm) of rain falls across August on average, the 5th-wettest month of the year. The annual total is about 39.0 in (991 mm).
What should I pack for Mývatn in August?
Bring insulated jacket (highs only 48°F), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most picks involve some walking).
Routes in season in August
- Iceland Ring Road Jun – Sep
Planning Mývatn in August?
Share this August plan with your group, poll everyone on dates and keep the packing list in one place.