Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As August makes way for September, Lemmer's average high-temperature eases from a pleasant 21.5°C (70.7°F) to an enjoyable 18.2°C (64.8°F). In September, Lemmer reports a consistent average low-temperature of 11.3°C (52.3°F) during the nights.Humidity
The average relative humidity in September in Lemmer is 82%.Rainfall
In Lemmer, Netherlands, during September, the rain falls for 18.3 days and regularly aggregates up to 51mm (2.01") of precipitation. Throughout the year, there are 189.1 rainfall days, and 507mm (19.96") of precipitation is accumulated.Snowfall
In Lemmer, snow does not fall in May through October.Sea temperature
In Lemmer, Netherlands, in September, the average water temperature is 18°C (64.4°F).Note: The majority of individuals do not enjoy swimming in water that is 18°C (64.4°F). Breathing control becomes more challenging as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Lemmer, Netherlands, the average length of the day in September is 12h and 40min.On the first day of September in Lemmer, Netherlands, sunrise is at 06:48 and sunset at 20:25. On the last day of the month, sunrise is at 07:37 and sunset at 19:16 CEST.
Sunshine
The average sunshine in September in Lemmer is 6.9h.UV index
In Lemmer, Netherlands, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are September temperatures in Lemmer?
What is the average humidity in September in Lemmer?
How much does it rain in Lemmer in September?
When it does not snow in Lemmer?
What is the sea water temperature in September in Lemmer?
What is the average length of the day in September in Lemmer?
When is the sunrise / sunset in September in Lemmer?
How long on average sun shines in September in Lemmer?
What is the UV index reading in September in Lemmer?
Average temperature in September
Lemmer, Netherlands
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is August (21.5°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is February (1°C).
Average pressure in September
Lemmer, Netherlands
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is May (1016.5mbar).
The month with the lowest atmospheric pressure is November (1011mbar).
Average wind speed in September
Lemmer, Netherlands
- Average wind speed in September: 13.7km/h
The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest month (with the lowest average wind speed) is August (13.3km/h).
Average humidity in September
Lemmer, Netherlands
- Average humidity in September: 82%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Lemmer, Netherlands
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is August (59mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Lemmer, Netherlands
- Average rainfall days in September: 18.3 days
The month with the highest number of rainy days is August (20.2 days).
The months with the least rainy days are February and April (11.4 days).
Average snowfall in September
Lemmer, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Lemmer, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Lemmer, Netherlands
- Average sea temperature in September: 18°C
The best month for swimming (with the highest average sea temperature) is August (18.2°C).
The coldest months (with the lowest average sea temperature) are February and March (6.3°C).
Average daylight in September /
Average sunshine in September
Lemmer, Netherlands
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Lemmer, Netherlands
- Average sunshine days in September: 9.3 days
The month with the most sunshine days is April (16.8 days).
The month with the least sunshine days is August (8 days).
Average UV index in September
Lemmer, Netherlands
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Lemmer, Netherlands
- Average cloud cover in September: 48
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in September
Lemmer, Netherlands
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Lemmer, Netherlands
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