Iceland Airwaves Festival
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April in Flateyri brings low temperatures, with daytime highs of 3°C (37°F) and nights around -1°C (30°F). Quite a bit of snow/rainfall is expected, around 90 mm (3.5 in), so pack an umbrella.
If you're looking for dry conditions and comfortable temperatures, April may not be the ideal month to visit Flateyri. Our weather planner can help you explore destinations with more pleasant weather conditions.
Pick a month to see the average temperature, rainfall and sunshine in Flateyri - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Flateyri typically stay consistent throughout April, with daily highs averaging around 3°C (37°F). Nights are very cold, with lows typically ranging from -4°C (25°F) to 0°C (32°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Flateyri spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
According to our 29 years of weather records for Flateyri, the following extremes were recorded between 1997 and 2026.
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 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).
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.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Flateyri climate overview or explore weather in Iceland.
Where to go in April - average daytime high across popular destinations.
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