Climate Chart of Flatey, Iceland

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

For Flatey, Iceland, the climate data describe 2013–2023 and give a broad picture of cool monthly mean temperatures alongside marked changes in daily sunshine and precipitation through the year. Monthly mean temperatures range from March at 0.1 °C to August at 9.6 °C. The figures are averages, so they describe typical monthly conditions rather than the conditions on any particular day; rainfall and snowfall figures are daily means, not monthly totals.

Climate overview

Temperature

Monthly mean temperature is lowest in March, at 0.1 °C, and reaches its highest point in August, at 9.6 °C. These are monthly averages, not daytime highs or lows, so they cannot indicate the full range visitors might encounter on individual days. Across the calendar months, the unweighted mean of monthly mean temperatures is 4.1 °C; it is a summary of those monthly means, not a day-weighted annual average.

Rain

Mean daily rainfall is lowest in March, at 0.43 mm/day, making it a conditional option for visitors prioritising lower average rainfall. The figure is a daily mean, not a monthly accumulation, and it does not show how often rain occurs or guarantee dry weather. The highest monthly mean daily rainfall occurs in September, at 3.98 mm/day. Visitors planning around this average can prepare for wet weather, while remembering that a mean does not describe rainfall on any one day. The unweighted mean across monthly daily-rainfall means is 1.88 mm/day; it is not a yearly rainfall total.

Sunshine

Mean daily sunshine reaches its highest level in June, at 10.86 hours/day, which may help visitors prioritising average sunshine when planning outdoor sightseeing. Sunshine duration is not the same as day length and does not promise clear skies throughout the day. The lowest mean daily sunshine is in December, at 0.23 hours/day; visitors considering outdoor plans then should allow for limited average sunshine, without treating the figure as a measure of daylight hours. The unweighted mean of monthly mean daily sunshine is 5.44 hours/day.

Snow

Mean daily snowfall is highest in December, at 29.72 mm/day. This records an average amount, not the number of snowy days, snow depth, or duration of snow cover, so it cannot establish local skiing conditions. The unweighted mean across monthly mean daily snowfall figures is 12.84 mm/day; it should not be read as a monthly total.

Best Travel Time Guide for Flatey, Iceland: Ideal Seasons and Weather Insights

For travel weather, March is a conditional choice if your priority is lower average daily rainfall, at 0.43 mm/day. That average cannot guarantee dry days or show how frequently rain falls, so keep weather-flexible plans and suitable rain protection in mind. If you prefer cooler monthly mean conditions, March is the relevant option, with a monthly mean of 0.1 °C; this is not a daytime maximum or a forecast for every day. For outdoor sightseeing planned around average sunshine, June has the highest mean daily sunshine at 10.86 hours/day, but sunshine duration does not indicate day length or guarantee clear weather.

Prepare for the possibility of wet weather when visiting in September, when mean daily rainfall is highest at 3.98 mm/day. In December, mean daily snowfall is highest at 29.72 mm/day, but that average alone cannot tell you how many days have snow or whether snow will lie on the ground. For planning in December, mean daily sunshine is lowest at 0.23 hours/day. Treat this as an average sunshine measure rather than daylight duration, and avoid relying on it to predict conditions for a particular outing.

Climate Data Overview for Flatey, Iceland

Explore the comprehensive climate data for Flatey, Iceland. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

Month	Average: Temperature °C	Rain (mm) / day	Snow (mm) / day	Sunshine (h) / day
Jan	0.2	0.61	25.42	0.79
Feb	0.4	0.58	23.78	2.62
Mar	0.1	0.43	22.09	5.25
Apr	1.7	0.60	13.59	8.58
May	4.3	1.43	7.33	9.93
Jun	8.2	2.12	0.66	10.86
Jul	9.2	3.42	0.00	8.85
Aug	9.6	3.38	0.06	8.31
Sep	8.0	3.98	2.87	5.67
Oct	4.7	3.52	9.92	3.08
Nov	2.4	1.61	18.63	1.13
Dec	0.2	0.83	29.72	0.23
Average	4.1	1.88	12.84	5.44