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Grundarfjordur Weather in April
April in Grundarfjordur typically sees daytime highs of 5°C (41°F) and nighttime lows of 1°C (34°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Grundarfjordur in April
Based on our climate data of the past 30 years, about 17 days of rain are anticipated, with 84 mm (3.3 in) on average. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in Grundarfjordur in April
Grundarfjordur in April gets highs of 5°C (41°F) during the day and drops to 1°C (34°F) at night. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. Nights fall to 1°C (34°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Grundarfjordur in April
The month brings about 136 hours of sunlight, offering a comfortable mix of sun and overcast.April in Grundarfjordur has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Grundarfjordur Temperature in April
Min Temperature
1°C (34°F)
Max Temperature
5°C (41°F)
Chance of Rain
57%
Precipitation
84 mm (3.3 in)
Rainy days
17 days
Humidity
80% *
Sunshine
136 hours *
Percentage Sunshine
30% *
* Data from: Stykkishólmur, Iceland (30 KM, 19 Miles).
Grundarfjordur Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grundarfjordur - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Grundarfjordur typically stay consistent throughout April, with daily highs averaging around 5°C (41°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
49-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 Grundarfjordur in April
Browse day-by-day weather records for Grundarfjordur spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Grundarfjordur historical weather extremes in April
Based on 27 years of weather observations in Grundarfjordur between 1999 and 2026, these are the recorded extremes.
- Grundarfjordur recorded its highest April temperature of 17°C (63°F) on April 30, 2019.
- On April 7, 2005, Grundarfjordur saw its coldest April day with temperatures maxing out at -5°C (23°F).
- The coldest night in April in Grundarfjordur was on April 5, 2021, with a minimum of -9°C (16°F).
- The wettest day in April Grundarfjordur was on April 27, 2026 with 33 mm (1.3 in) of precipitation.
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 Grundarfjordur in April
We recommend to layer up for chilly conditions in Grundarfjordur in April. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Grundarfjordur in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling3/10 -
Walking3/10 -
Camping4/10 -
Outdoor sports3/10
Grundarfjordur 3-Day Forecast
More climate data for Grundarfjordur
Temperature Rainfall Sunshine Humidity
See the full Grundarfjordur 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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