North Rhine-Westphalia

Straelen, Germany Climate

NASA POWER reanalysis for the half-degree grid cell around Straelen, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

The warmest month is July, with an average high of 23°C; the coldest is January, with an average low of -1°C. A normal year brings 794 mm of precipitation.

Temperature through the year

The normal daily high and low and the record for every date at Siebengewald, since 1995. The line marks today.

Normal daily high and low temperature at Straelen through the year, in °C.-100102030JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high

Normals for Sep 28

Normal high
18°C
Normal low
9°C
Chance of a wet day
44%
Daylight
11 h 49 min

Month by month

Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.

MonthAvg highAvg lowRecord highRecord lowPrecipitationWet days
January5°C-1°C74 mm15.5
February6°C0°C59 mm11.3
March11°C2°C59 mm12.4
April15°C4°C45 mm12.0
May19°C8°C59 mm12.4
June21°C11°C66 mm12.0
July23°C13°C74 mm15.5
August23°C13°C74 mm12.4
September20°C10°C63 mm12.0
October15°C7°C68 mm12.4
November9°C3°C72 mm15.0
December5°C0°C81 mm15.5
Year14°C6°C794 mm158

Precipitation

Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.

794 mm in a normal year, most in December.

Chance of a wet day

The chance of at least 1 mm of precipitation in the reanalysis on each date at Straelen, in percent.0204060JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Straelen.

The muggiest month is July, when 4 percent of days are muggy or worse, with a mean dew point of 18°C or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January1°C92%100%0%0%0%0%0%
February1°C89%100%0%0%0%0%0%
March3°C83%100%0%0%0%0%0%
April5°C77%100%0%0%0%0%0%
May9°C75%87%10%3%0%0%0%
June12°C75%63%25%10%1%0%0%
July14°C75%38%38%19%4%0%0%
August14°C76%40%39%19%2%0%0%
September11°C79%75%21%4%0%0%0%
October8°C85%93%6%0%0%0%0%
November5°C91%100%0%0%0%0%0%
December2°C93%100%0%0%0%0%0%

Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.

Clouds

Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.

The clearest month is September, with the sky 67 percent covered on average; the cloudiest is November, at 75 percent.

Wind

The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.

The windiest month is January, averaging 19.8 km/h at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 17, with 16 h 38 min of daylight; the shortest is Dec 19, with 7 h 50 min.

Hours of daylight at Straelen through the year.0510152025JanFebMarAprMayJunJulAugSepOctNovDec
  • Day length

Solar energy

Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.

Sunrise and sunset calendar

Month pages

The weather in Straelen in each month, day by day.

What this means

A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.

A record is the highest or lowest value on the date in every year the station has reported, back to 1995. It rests on one station, so a neighbor a few miles away can hold different ones.

Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.

More for this place

Nearby

Sources

Records: NOAA GHCN-Daily, station NLE00109284, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.