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Reykjavik weather in May

Reykjavik in May averages 7°C (45°F), 49 mm of rain and 6.8 hours of sun a day.

Of the twelve months in Reykjavik, May is the fifth warmest, the second driest and the sunniest.

Reykjavik
Average temp
7°C (45°F)

4–10°C · 39–50°F

Rainfall
49 mm

Not much rain

Sunshine
6.8 h

hours per day

Wind
21 km/h
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What is Reykjavik like in May?

Daytime

Days are cool.

Rain

Rain is usually light.

Evening

Evenings are cooler. A layer helps after sunset.

What should I pack for Reykjavik in May?

  • A warm mid-layer

    Nights drop to around 4°C (39°F).

May compared with April and June

May in Reykjavik is 3°C warmer than April and about as wet as it, which averages 4°C (39°F).

May in Reykjavik is 3.1°C cooler than June and about as wet as it, which averages 10°C (50°F).

Daylight in Reykjavik in May

On 15 May the sun is up for 18 hours 28 minutes in Reykjavik, rising about 04:11 and setting about 22:39 local time.

May ends 3 hours 10 minutes longer than it begins, so the last week of the month is a different length of day from the first.

That is 2 hours 36 minutes short of June, the longest-lit month here.

Where to stay in Reykjavik

Dates are a starting point for May.

All hotels in Reykjavik

Reykjavik weather by month

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 2 Sept 2026358 places covered

How May compares with the rest of the year

May is highlighted. Every other month links to its own page.

Reykjavik weather by month: average temperature, rainfall, sunshine and wind for each month, from 1991–2020 climate normals
MonthAverageRainfall
January1°C / 33°F86 mm
February1°C / 33°F87 mm
March2°C / 35°F84 mm
April4°C / 39°F56 mm
May7°C / 45°F49 mm
June10°C / 50°F41 mm
July12°C / 54°F50 mm
August11°C / 53°F66 mm
September9°C / 48°F87 mm
October5°C / 41°F80 mm
November2°C / 36°F86 mm
December1°C / 33°F97 mm

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FAQs about Reykjavik in May

May climate averages for Reykjavik, 1991–2020.

Reykjavik averages 7°C (45°F) in May, ranging from about 4°C (39°F) at night to 10°C (50°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.

Barely. May sees only about 49 mm, so rain is unlikely to affect your plans.

No. May averages 7°C (45°F) against 10°C (50°F) in June — 3.1°C cooler.

May is 3°C warmer than April, and about as wet.

Yes. May falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.

About 6.8 hours of sun a day on the 1991–2020 average.

This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what May is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.

About 18 hours 28 minutes of daylight in mid-May, against 21 hours 4 minutes in June and 4 hours 12 minutes in December.

On 15 May, sunrise is about 04:11 and sunset about 22:39 local time. Both shift across the month — the month ends 3 hours 10 minutes longer than it starts.