Hyperlocal rainfall totals + real-time NOAA forecasts
Accurate weather without the clutter
Porz am Rhein, North Rhine-Westphalia Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Porz am Rhein, North Rhine-Westphalia?
Porz am Rhein, North Rhine-Westphalia gets 802 mm of precipitation a year over about 175 rainy days. July is the warmest month (average high 25°C) and January the coldest (average low 0°C).
Oceanic climate
Porz am Rhein, North Rhine-Westphalia has warm summers and chilly winters. Daytime highs range from about 6°C in January to 25°C in July. July is usually the wettest month. The most comfortable time to visit is typically May to June and August to September, when daytime highs sit near 22°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 1° | 7° |
| Spring | Mar–May | 5° | 16° |
| Summer | Jun–Aug | 12° | 24° |
| Autumn | Sep–Nov | 7° | 15° |
How much rain does Porz am Rhein get?
Porz am Rhein gets 802 mm of precipitation in an average year, spread over about 175 days with measurable rain. That is more rainy days than 70% of Germany.
July is the wettest month, with 87 mm. April is the driest, with 48 mm. December has the most rainy days, about 18.
The longest dry spell in the last five years lasted 21 days, to June 5, 2023.
From October 2025 to September 2026 Porz am Rhein got 618 mm of rain, against a normal of 802 mm for those months. May 2026 had the most, with 91 mm.
Porz am Rhein weather by month
Porz am Rhein weather in January
In January, Porz am Rhein averages a high of 6°C and a low of 0°C. It gets 62 mm of precipitation over about 16 rainy days. Estimated sunshine is 22% of daylight hours, derived from ERA5 cloud cover. The January record high is 16°C (1999) and the record low is -23°C (1985).
Porz am Rhein weather in February
In February, Porz am Rhein averages a high of 7°C and a low of 0°C. It gets 54 mm of precipitation over about 15 rainy days. Estimated sunshine is 26% of daylight hours, derived from ERA5 cloud cover. The February record high is 21°C (2021) and the record low is -19°C (1985).
Porz am Rhein weather in March
In March, Porz am Rhein averages a high of 12°C and a low of 2°C. It gets 55 mm of precipitation over about 15 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The March record high is 27°C (2021) and the record low is -13°C (1971).
Porz am Rhein weather in April
In April, Porz am Rhein averages a high of 16°C and a low of 4°C. It gets 48 mm of precipitation over about 12 rainy days. Estimated sunshine is 39% of daylight hours, derived from ERA5 cloud cover. The April record high is 29°C (2007) and the record low is -9°C (1986).
Porz am Rhein weather in May
In May, Porz am Rhein averages a high of 20°C and a low of 8°C. It gets 62 mm of precipitation over about 13 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The May record high is 34°C (2017) and the record low is -3°C (1979). May is one of the most comfortable months to visit.
Porz am Rhein weather in June
In June, Porz am Rhein averages a high of 23°C and a low of 11°C. It gets 86 mm of precipitation over about 14 rainy days. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The June record high is 38°C (2026) and the record low is -1°C (1975). June is one of the most comfortable months to visit.
Porz am Rhein weather in July
In July, Porz am Rhein averages a high of 25°C and a low of 13°C. It gets 87 mm of precipitation over about 15 rainy days. Estimated sunshine is 35% of daylight hours, derived from ERA5 cloud cover. The July record high is 41°C (2019) and the record low is 3°C (1984).
Porz am Rhein weather in August
In August, Porz am Rhein averages a high of 24°C and a low of 13°C. It gets 83 mm of precipitation over about 14 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The August record high is 39°C (2003) and the record low is 2°C (1993). August is one of the most comfortable months to visit.
Porz am Rhein weather in September
In September, Porz am Rhein averages a high of 21°C and a low of 10°C. It gets 67 mm of precipitation over about 13 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The September record high is 33°C (2020) and the record low is -1°C (1971). September is one of the most comfortable months to visit.
Porz am Rhein weather in October
In October, Porz am Rhein averages a high of 15°C and a low of 7°C. It gets 65 mm of precipitation over about 15 rainy days. Estimated sunshine is 26% of daylight hours, derived from ERA5 cloud cover. The October record high is 28°C (1983) and the record low is -6°C (1997).
Porz am Rhein weather in November
In November, Porz am Rhein averages a high of 10°C and a low of 3°C. It gets 64 mm of precipitation over about 16 rainy days. Estimated sunshine is 25% of daylight hours, derived from ERA5 cloud cover. The November record high is 21°C (2020) and the record low is -11°C (1988).
Porz am Rhein weather in December
In December, Porz am Rhein averages a high of 7°C and a low of 1°C. It gets 69 mm of precipitation over about 18 rainy days. Estimated sunshine is 18% of daylight hours, derived from ERA5 cloud cover. The December record high is 18°C (2022) and the record low is -18°C (1973).
Sunshine, humidity and wind in Porz am Rhein
June is the sunniest month in Porz am Rhein, with estimated sunshine of 41% of daylight hours from ERA5 cloud cover. December is the cloudiest, at 18%. The annual cloud-cover estimate is 32% of daylight hours; it is not a measurement of sunshine duration. Porz am Rhein is sunnier than 58% of Germany.
Humidity peaks in December at 87% and is lowest in June at 63%.
Porz am Rhein has about 5 days a year above 32°C. Porz am Rhein is hotter than 78% of Germany.
First and last freeze in Porz am Rhein
The first fall freeze in Porz am Rhein typically comes around October 23, and the last spring freeze around April 26. That leaves a frost-free growing season of about 180 days.
Porz am Rhein weather records
These records cover KOLN-BONN during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Porz am Rhein station is 41°C, on July 25, 2019. The coldest is -23°C, on January 14, 1985.
The wettest day in the available station history brought 107 mm of precipitation, on July 14, 2021.
53 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.4°C per decade since 1970.
The best time to visit Porz am Rhein
The most comfortable time to visit is typically May to June and August to September, when daytime highs sit near 22°C.
Winter (December–February) is chilly, with average highs around 7°C and lows near 0°C.
Spring (March–May) is mild, with average highs around 16°C and lows near 5°C.
Summer (June–August) is warm, with average highs around 24°C and lows near 12°C.
Autumn (September–November) is mild, with average highs around 15°C and lows near 7°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 0° | 6° | 62 mm | 16 | 86% | 22% | 16° | -23° |
| February | 0° | 7° | 54 mm | 15 | 79% | 26% | 21° | -19° |
| March | 2° | 12° | 55 mm | 15 | 69% | 38% | 27° | -13° |
| April | 4° | 16° | 48 mm | 12 | 64% | 39% | 29° | -9° |
| May | 8° | 20° | 62 mm | 13 | 66% | 37% | 34° | -3° |
| June | 11° | 23° | 86 mm | 14 | 63% | 41% | 38° | -1° |
| July | 13° | 25° | 87 mm | 15 | 66% | 35% | 41° | 3° |
| August | 13° | 24° | 83 mm | 14 | 67% | 40% | 39° | 2° |
| September | 10° | 21° | 67 mm | 13 | 74% | 40% | 33° | -1° |
| October | 7° | 15° | 65 mm | 15 | 83% | 26% | 28° | -6° |
| November | 3° | 10° | 64 mm | 16 | 85% | 25% | 21° | -11° |
| December | 1° | 7° | 69 mm | 18 | 87% | 18% | 18° | -18° |
Station: KOLN-BONN, 7 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Porz am Rhein climate questions
How much rain does Porz am Rhein get?
Porz am Rhein gets 802 mm of precipitation in an average year, over about 175 rainy days.
What is the wettest month in Porz am Rhein?
July is the wettest month in Porz am Rhein, with 87 mm. April is the driest, with 48 mm.
How many rainy days does Porz am Rhein have a year?
Porz am Rhein has about 175 days with measurable rain in an average year. December has the most, about 18.
What is the hottest month in Porz am Rhein?
July is the warmest month in Porz am Rhein, with an average high of 25°C.
What is the coldest month in Porz am Rhein?
January is the coldest month in Porz am Rhein, with an average low of 0°C.
What is the record high temperature in Porz am Rhein?
Within the available 1970–2026 station history, the record high at the Porz am Rhein station is 41°C, set on July 25, 2019. The record low is -23°C, on January 14, 1985.
What is the sunniest month in Porz am Rhein?
June is the sunniest month in Porz am Rhein, with estimated sunshine of 41% of daylight hours from ERA5 cloud cover. December is the cloudiest.
When is the first frost in Porz am Rhein?
The first fall freeze in Porz am Rhein typically comes around October 23. The last spring freeze is around April 26.
What is the best time to visit Porz am Rhein?
The most comfortable time to visit is typically May to June and August to September, when daytime highs sit near 22°C.