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Koblenz, Germany
Weather month by month, from 20 years of weather-station records.
Average daily high and low, total rainfall and days with at least 2.5 mm of rain.
| Month | High / low | Rain | Verdict |
|---|---|---|---|
| January | 4°C / -1°C | 75 mm · 9 days | Cold |
| February | 6°C / -1°C | 63 mm · 8 days | Cold |
| March | 10°C / 1°C | 63 mm · 7 days | Cold |
| April | 15°C / 4°C | 39 mm · 5 days | Good |
| May | 19°C / 7°C | 71 mm · 8 days | Fair |
| June | 22°C / 11°C | 70 mm · 7 days | Great |
| July | 24°C / 13°C | 72 mm · 7 days | Great |
| August | 24°C / 12°C | 74 mm · 8 days | Great |
| September | 20°C / 9°C | 52 mm · 5 days | Good |
| October | 14°C / 6°C | 64 mm · 8 days | Fair |
| November | 9°C / 3°C | 62 mm · 7 days | Cold |
| December | 5°C / 0°C | 86 mm · 11 days | Cold |
Spring sees the city awakening, with blooming flowers in the parks along the Rhine and comfortable temperatures perfect for walking. The vineyards on the hillsides begin to turn green.
Summer is peak season, with long, warm days ideal for river cruises, cable car rides, and fortress exploration. The city is vibrant, with outdoor festivals and bustling beer gardens.
Autumn brings stunning foliage to the river valleys, creating a picturesque backdrop. It's the season of wine harvest, with many local festivals (Weinfeste) in the surrounding villages.
Winter is cold and often gray, but the city compensates with the magical Koblenz Christmas Market, one of the most beautiful in Germany, set against the historic Old Town.
In January, Koblenz averages highs of 4°C and lows of -1°C, with about 9 rainy days and 75 mm of rain. It is cold, so pack warm layers.
In February, Koblenz averages highs of 6°C and lows of -1°C, with about 8 rainy days and 63 mm of rain. It is cold, so pack warm layers.
In March, Koblenz averages highs of 10°C and lows of 1°C, with about 7 rainy days and 63 mm of rain. It is cold, so pack warm layers.
In April, Koblenz averages highs of 15°C and lows of 4°C, with about 5 rainy days and 39 mm of rain. It is a good month to visit.
In May, Koblenz averages highs of 19°C and lows of 7°C, with about 8 rainy days and 71 mm of rain. Expect mixed weather, with comfortable spells.
In June, Koblenz averages highs of 22°C and lows of 11°C, with about 7 rainy days and 70 mm of rain. It is one of the most comfortable months for sightseeing.
In July, Koblenz averages highs of 24°C and lows of 13°C, with about 7 rainy days and 72 mm of rain. It is one of the most comfortable months for sightseeing.
In August, Koblenz averages highs of 24°C and lows of 12°C, with about 8 rainy days and 74 mm of rain. It is one of the most comfortable months for sightseeing.
In September, Koblenz averages highs of 20°C and lows of 9°C, with about 5 rainy days and 52 mm of rain. It is a good month to visit.
In October, Koblenz averages highs of 14°C and lows of 6°C, with about 8 rainy days and 64 mm of rain. Expect mixed weather, with comfortable spells.
In November, Koblenz averages highs of 9°C and lows of 3°C, with about 7 rainy days and 62 mm of rain. It is cold, so pack warm layers.
In December, Koblenz averages highs of 5°C and lows of 0°C, with about 11 rainy days and 86 mm of rain. It is cold, so pack warm layers.
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June is the most comfortable month on average, with highs of 22°C. July and August are close behind.
December is the wettest month, with about 86 mm of rain.
July is the warmest month, with average highs of 24°C and lows of 13°C. The coldest nights come in January, averaging -1°C.
Averages for 2006–2025 from the MONTABAUR weather station (18 km from the centre), NOAA Global Historical Climatology Network. Verdicts rate sightseeing comfort from daytime highs and rainy days.