Blue Lagoon Weather in July
Blue Lagoon in July averages 14°C (57°F) during the day and 10°C (50°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Blue Lagoon in July
Historically, approximately 17 days this month are expected to have rain, averaging 84 mm (3.3 in). Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Blue Lagoon in July
Daytime highs in Blue Lagoon in July reach 14°C (57°F), with nights around 10°C (50°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 10°C (50°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep. On average, it sees the highest temps of the year.
Sunshine in Blue Lagoon in July
You can expect a moderate amount of sunlight, with approximately 168 hours. This means a pleasant mix of sun and overcast.If you favor pleasant temperatures and minimal rainfall, July is one of the best months to visit Blue Lagoon.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Blue Lagoon's climate page.
Blue Lagoon Temperature in July
Min Temperature
10°C (50°F)
Max Temperature
14°C (57°F)
Chance of Rain
56%
Precipitation
84 mm (3.3 in)
Rainy days
17 days
Humidity
81% *
Sunshine
168 hours *
Percentage Sunshine
30% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Blue Lagoon typically stay consistent throughout July, with daily highs averaging around 14°C (57°F). Nights are cool, with lows around 9°C (48°F).
Average temperatures in July
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Historical weather for Blue Lagoon in July
Browse day-by-day weather records for Blue Lagoon spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Blue Lagoon historical weather extremes in July
Based on 49 years of weather observations in Blue Lagoon between 1976 and 2025, these are the recorded extremes.
- The warmest day in July was on July 31, 1980, with a maximum of 23°C (73°F).
- The coldest July day was on July 6, 1995, with a maximum of 7°C (45°F).
- Nighttime temperatures dropped to 4°C (39°F) on July 23, 1992, marking the coldest July night on record.
- Peak precipitation in July occurred on July 2, 2014, when 36 mm (1.4 in) of precipitation was measured.
Best Places in Iceland in July
Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in July →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Blue Lagoon in July
The weather can be unpredictable in July, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Blue Lagoon in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Blue Lagoon's climate page.
Temperature Rainfall Sunshine Humidity
See the full Blue Lagoon climate overview or explore weather in Iceland.
