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Blue Lagoon Weather and Climate: A Comprehensive Guide

The weather in Blue Lagoon sees moderate temperature fluctuations over the course of a year. Temperatures can be mild at the high end to roughly cold at the low end. It also has a relatively rain/snowy climate with high levels of precipitation. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

The climate in Blue Lagoon experiences moderate temperature changes, with mild shifts between seasons. On average, daytime temperatures range from a moderate 14°C in July to a chilly 5°C in February.

Nighttime temperatures can drop, with average lows reaching 0°C in February. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Blue Lagoon experiences significant rain/snowfall throughout the year, averaging 1427 mm of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, September, sees around 149 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, June, still receives a respectable 79 mm of rainfall.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Blue Lagoon, summer days are longer and more sunny, with daily sunshine hours peaking at 6.7 hours in May. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 0.7 hours per average day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Reykjavík, Iceland (38 KM, 24 Miles).

Daily hours of sunshine

Data from: Reykjavík, Iceland (38 KM, 24 Miles).

Forecast for Blue Lagoon

Wed   Jan 15
8°C | 4°C
S 12 m/s
6.4 mm
partly cloudy and rain

partly cloudy and rain

Thu   Jan 16
5°C | -1°C
NW 6 m/s
11 mm
overcast and heavy rain

overcast and heavy rain

Fri   Jan 17
0°C | -3°C
NE 4 m/s
partly cloudy and no rain

partly cloudy and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Blue Lagoon in Iceland

Other facts from our historical weather data:
  • Which is the warmest month in Blue Lagoon?
    July has an average maximum temperature of 14°C and is the warmest month of the year.
  • Which is the coldest month in Blue Lagoon?
    The coldest month is February with an average maximum temperature of 5°C.
  • Which is the wettest month in Blue Lagoon?
    September tops the wettest month list with 149 mm of rainfall.
  • Which is the driest month in Blue Lagoon?
    June is the driest month with 79 mm of precipitation.
  • Which is the sunniest month in Blue Lagoon?
    May is the sunniest month with an average of 201 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.