Climate averages 1991–2020
Flensburg weather
in December.
A cold, moderately wet month: the 10th warmest and the joint 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Flensburg: daytime highs average 4.6°C and nights cool to about 1.0°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 63 mm of rain on roughly 13 days, which makes December a moderately wet month (the joint 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 7 h 20 min on an average December day.
The nearest other city in this atlas is Kiel (69 km away). In December its highs average 4.5°C, about as warm as Flensburg, with 57 mm of rain.
Among the 120 cities listed in Germany, Flensburg ranks joint 71st of 120 for the warmest December highs and joint 29th of 120 for the driest December (rainfall, lowest first). The mean December high of those 120 cities is 4.9°C; Flensburg is 0.3°C cooler than that mean.
From December to January, average highs fall by 0.9°C to 3.7°C, and monthly rainfall rises from 63 mm to 64 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Flensburg climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.7°C-0.2°C | -0.2°C | 64 | 12.7 | 7.98 h |
| February | 4.2°C-0.3°C | -0.3°C | 50 | 10.5 | 9.610 h |
| March | 7.0°C0.9°C | 0.9°C | 50 | 10.7 | 11.812 h |
| April | 11.7°C3.9°C | 3.9°C | 43 | 9.6 | 14.114 h |
| May | 15.7°C7.9°C | 7.9°C | 55 | 10.6 | 16.116 h |
| June | 18.6°C11.2°C | 11.2°C | 68 | 11.5 | 17.217 h |
| July | 20.8°C13.6°C | 13.6°C | 74 | 12.3 | 16.717 h |
| August | 20.6°C13.8°C | 13.8°C | 76 | 12.8 | 15.015 h |
| September | 17.0°C11.3°C | 11.3°C | 63 | 11.0 | 12.813 h |
| October | 12.4°C7.5°C | 7.5°C | 65 | 12.6 | 10.611 h |
| November | 7.6°C3.7°C | 3.7°C | 57 | 11.8 | 8.59 h |
| December, selected | 4.6°C1.0°C | 1.0°C | 63 | 12.6 | 7.37 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Kiel in DecemberGermany · 69 kmHigh 4.5°C · Low 1.0°C · 57 mm rain
- Neumünster in DecemberGermany · 87 kmHigh 4.4°C · Low 0.8°C · 65 mm rain
- Odense in DecemberDenmark · 91 kmHigh 4.5°C · Low 1.1°C · 48 mm rain
- Esbjerg in DecemberDenmark · 98 kmHigh 5.1°C · Low 2.2°C · 75 mm rain
- Norderstedt in DecemberGermany · 126 kmHigh 4.3°C · Low 0.7°C · 65 mm rain
- Lübeck in DecemberGermany · 130 kmHigh 4.3°C · Low 0.7°C · 56 mm rain
- Hamburg in DecemberGermany · 142 kmHigh 4.5°C · Low 0.7°C · 62 mm rain
- Bremerhaven in DecemberGermany · 148 kmHigh 5.0°C · Low 1.8°C · 66 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Flensburg) is explained once on the Flensburg year overview and on the Sources, method and limits page.