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Trier, Rheinland-Pfalz Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Trier, Rheinland-Pfalz?
Trier, Rheinland-Pfalz gets 745 mm of precipitation a year over about 169 rainy days. July is the warmest month (average high 25°C) and January the coldest (average low -1°C).
Oceanic climate
Trier, Rheinland-Pfalz has warm summers and chilly winters. Daytime highs range from about 5°C in January to 25°C in July. December is usually the wettest month. The most comfortable time to visit is typically May to September, when daytime highs sit near 23°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 0° | 5° |
| Spring | Mar–May | 5° | 16° |
| Summer | Jun–Aug | 13° | 24° |
| Autumn | Sep–Nov | 7° | 14° |
How much rain does Trier get?
Trier gets 745 mm of precipitation in an average year, spread over about 169 days with measurable rain. That is more rainy days than 52% of Germany.
December is the wettest month, with 77 mm. April is the driest, with 44 mm. December has the most rainy days, about 17.
The longest dry spell in the last five years lasted 22 days, to June 7, 2023.
From October 2025 to September 2026 Trier got 499 mm of rain, against a normal of 745 mm for those months. February 2026 had the most, with 89 mm.
Trier weather by month
Trier weather in January
In January, Trier averages a high of 4°C and a low of -1°C. It gets 64 mm of precipitation over about 17 rainy days. Estimated sunshine is 18% of daylight hours, derived from ERA5 cloud cover. The January record high is 14°C (2023) and the record low is -18°C (1979).
Trier weather in February
In February, Trier averages a high of 6°C and a low of 0°C. It gets 53 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 (2019) and the record low is -16°C (2012).
Trier weather in March
In March, Trier averages a high of 11°C and a low of 2°C. It gets 51 mm of precipitation over about 14 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The March record high is 24°C (2021) and the record low is -14°C (2005).
Trier weather in April
In April, Trier averages a high of 16°C and a low of 5°C. It gets 44 mm of precipitation over about 12 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The April record high is 29°C (2018) and the record low is -6°C (1986).
Trier weather in May
In May, Trier averages a high of 19°C and a low of 9°C. It gets 67 mm of precipitation over about 14 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The May record high is 34°C (2017) and the record low is -1°C (1981). May is one of the most comfortable months to visit.
Trier weather in June
In June, Trier averages a high of 23°C and a low of 12°C. It gets 65 mm of precipitation over about 13 rainy days. Estimated sunshine is 42% of daylight hours, derived from ERA5 cloud cover. The June record high is 41°C (2026) and the record low is 1°C (1991). June is one of the most comfortable months to visit.
Trier weather in July
In July, Trier averages a high of 25°C and a low of 14°C. It gets 73 mm of precipitation over about 13 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The July record high is 41°C (2019) and the record low is 4°C (1984). July is one of the most comfortable months to visit.
Trier weather in August
In August, Trier averages a high of 25°C and a low of 13°C. It gets 62 mm of precipitation over about 13 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 4°C (1978). August is one of the most comfortable months to visit.
Trier weather in September
In September, Trier averages a high of 21°C and a low of 10°C. It gets 60 mm of precipitation over about 11 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The September record high is 35°C (2020) and the record low is 1°C (1972). September is one of the most comfortable months to visit.
Trier weather in October
In October, Trier averages a high of 14°C and a low of 7°C. It gets 66 mm of precipitation over about 14 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The October record high is 28°C (2011) and the record low is -5°C (2012).
Trier weather in November
In November, Trier averages a high of 8°C and a low of 3°C. It gets 62 mm of precipitation over about 17 rainy days. Estimated sunshine is 20% of daylight hours, derived from ERA5 cloud cover. The November record high is 21°C (2020) and the record low is -11°C (1998).
Trier weather in December
In December, Trier averages a high of 5°C and a low of 1°C. It gets 77 mm of precipitation over about 17 rainy days. Estimated sunshine is 13% of daylight hours, derived from ERA5 cloud cover. The December record high is 17°C (1989) and the record low is -16°C (2009).
Sunshine, humidity and wind in Trier
June is the sunniest month in Trier, with estimated sunshine of 42% of daylight hours from ERA5 cloud cover. December is the cloudiest, at 13%. The annual cloud-cover estimate is 32% of daylight hours; it is not a measurement of sunshine duration. Trier is cloudier than 55% of Germany.
Humidity peaks in December at 91% and is lowest in April at 65%.
Trier has about 6 days a year above 32°C. Trier is hotter than 85% of Germany.
First and last freeze in Trier
The first fall freeze in Trier typically comes around November 2, and the last spring freeze around April 17. That leaves a frost-free growing season of about 199 days.
Trier weather records
These records cover TRIER-PETRISBERG during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Trier station is 41°C, on July 25, 2019. The coldest is -18°C, on January 1, 1979.
The wettest day in the available station history brought 64 mm of precipitation, on July 14, 2021.
51 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 Trier
The most comfortable time to visit is typically May to September, when daytime highs sit near 23°C.
Winter (December–February) is chilly, with average highs around 5°C and lows near 0°C.
Spring (March–May) is mild, with average highs around 15°C and lows near 5°C.
Summer (June–August) is warm, with average highs around 24°C and lows near 13°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 | -1° | 4° | 64 mm | 17 | 89% | 18% | 14° | -18° |
| February | 0° | 6° | 53 mm | 15 | 82% | 26% | 21° | -16° |
| March | 2° | 11° | 51 mm | 14 | 71% | 37% | 24° | -14° |
| April | 5° | 16° | 44 mm | 12 | 65% | 40% | 29° | -6° |
| May | 9° | 19° | 67 mm | 14 | 68% | 38% | 34° | -1° |
| June | 12° | 23° | 65 mm | 13 | 66% | 42% | 41° | 1° |
| July | 14° | 25° | 73 mm | 13 | 66% | 40% | 41° | 4° |
| August | 13° | 25° | 62 mm | 13 | 69% | 40% | 39° | 4° |
| September | 10° | 21° | 60 mm | 11 | 75% | 40% | 35° | 1° |
| October | 7° | 14° | 66 mm | 14 | 86% | 24% | 28° | -5° |
| November | 3° | 8° | 62 mm | 17 | 90% | 20% | 21° | -11° |
| December | 1° | 5° | 77 mm | 17 | 91% | 13% | 17° | -16° |
Station: TRIER-PETRISBERG, 2 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.
Trier climate questions
How much rain does Trier get?
Trier gets 745 mm of precipitation in an average year, over about 169 rainy days.
What is the wettest month in Trier?
December is the wettest month in Trier, with 77 mm. April is the driest, with 44 mm.
How many rainy days does Trier have a year?
Trier has about 169 days with measurable rain in an average year. December has the most, about 17.
What is the hottest month in Trier?
July is the warmest month in Trier, with an average high of 25°C.
What is the coldest month in Trier?
January is the coldest month in Trier, with an average low of -1°C.
What is the record high temperature in Trier?
Within the available 1970–2026 station history, the record high at the Trier station is 41°C, set on July 25, 2019. The record low is -18°C, on January 1, 1979.
What is the sunniest month in Trier?
June is the sunniest month in Trier, with estimated sunshine of 42% of daylight hours from ERA5 cloud cover. December is the cloudiest.
When is the first frost in Trier?
The first fall freeze in Trier typically comes around November 2. The last spring freeze is around April 17.
What is the best time to visit Trier?
The most comfortable time to visit is typically May to September, when daytime highs sit near 23°C.