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On its way to its 20th edition in 2019 Iceland Airwaves is a festival you need to visit once in your life. Everything from lagoons and bookstores to bars and concert halls is filled with music.
Blue Lagoon Weather in April
April in Blue Lagoon brings low temperatures around 7°C (45°F) during the day, dropping to 2°C (36°F) at night, with quite a bit of rainfall expected, averaging around 105 mm (4.1 in) for the month.
Rainfall in Blue Lagoon in April
Looking at the last 30 years, the data shows about 19 days with rain, averaging 105 mm (4.1 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Blue Lagoon in April
April in Blue Lagoon brings low temperatures, with highs of 7°C (45°F) and nights around 2°C (36°F). Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. Nights drop to 2°C (36°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Blue Lagoon in April
You can expect a moderate amount of sunlight, with approximately 165 hours. This means a pleasant mix of sun and overcast.If you're looking for dry conditions and comfortable temperatures, April may not be the ideal month to visit Blue Lagoon. Our weather planner can help you explore destinations with more pleasant weather conditions.
Blue Lagoon Temperature in April
Min Temperature
2°C (36°F)
Max Temperature
7°C (45°F)
Chance of Rain
62%
Precipitation
105 mm (4.1 in)
Rainy days
19 days
Humidity
78% *
Sunshine
165 hours *
Percentage Sunshine
36% *
* Data from: Reykjavík, Iceland (38 KM, 24 Miles).
Blue Lagoon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Blue Lagoon - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Blue Lagoon typically stay consistent throughout April, with daily highs averaging around 7°C (45°F). Nights are cold, with lows typically ranging from -1°C (30°F) to 2°C (36°F).
Average temperatures in April
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 April
Historical weather records for Blue Lagoon in April
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 April
According to our 50 years of weather records for Blue Lagoon, the following extremes were recorded between 1976 and 2026.
- Blue Lagoon recorded its highest April temperature of 15°C (59°F) on April 19, 2005.
- The lowest daytime temperature in April was -4°C (25°F), recorded on April 11, 1988.
- The coldest night in April in Blue Lagoon was on April 3, 1990, with a minimum of -11°C (12°F).
- Peak precipitation in April occurred on April 13, 1994, when 67 mm (2.6 in) of precipitation was measured.
Best Places in Iceland in April
Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in April →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Blue Lagoon in April
Cold weather calls for smart layering in April. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Blue Lagoon in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling4/10 -
Walking4/10 -
Camping3/10 -
Outdoor sports4/10
Blue Lagoon 3-Day Forecast
More climate data for Blue Lagoon
Temperature Rainfall Sunshine Humidity
See the full Blue Lagoon climate overview or explore weather in Iceland.
Popular in April
Where to go in April - average daytime high across popular destinations.
Hella
8°C (46°F) Reykjavík
7°C (45°F) Kópavogur7°C (45°F) Selfoss8°C (46°F) Keflavík7°C (45°F) Höfn
5°C (41°F) Egilsstadir3°C (37°F) Akureyri3°C (37°F) Bucket list
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