Hafnarfjördur Weather in May

Hafnarfjördur in May sees low temperatures, with highs around 11°C (52°F) and overnight lows of 4°C (39°F). Rainfall is fairly high at around 97 mm (3.8 in) on average, so pack waterproofs just in case.

Rainfall in Hafnarfjördur in May

Typically, you can expect about 16 days of rain this month, with 97 mm (3.8 in) on average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Hafnarfjördur in May

Daytime highs in Hafnarfjördur in May reach 11°C (52°F), with nights around 4°C (39°F). The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. At 4°C (39°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Hafnarfjördur in May

With approximately 201 hours of sunshine, the days are filled with clear skies. Despite it being a cool month, it makes for pleasant days outside.

Wind Speed in Hafnarfjördur in May

Wind speeds average 5 m/s (10 knots) during May. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.

Average water temperature in May

With water temperatures around 8°C (46°F), swimming isn't really an option for most visitors. The cold sets in quickly and a wetsuit won't fully solve it.

If you prefer dry days with pleasant temperatures, June and July typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.