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 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
Cass's average high-temperature marks a still cold 5.5°C (41.9°F) with the advent of September, closely mirroring that of the preceding month. In Cass, an average temperature of -1.1°C (30°F) is noted during September nights.Humidity
In Cass, the average relative humidity in September is 91%.Rainfall
In Cass, New Zealand, during September, the rain falls for 9.6 days and regularly aggregates up to 114mm (4.49") of precipitation. In Cass, New Zealand, during the entire year, the rain falls for 162.6 days and collects up to 1501mm (59.09") of precipitation.Snowfall
Months with snowfall are January through December. In Cass, during September, snow falls for 16.5 days and regularly aggregates up to 428mm (16.85") of snow. Throughout the year, there are 114.9 snowfall days, and 3387mm (133.35") of snow is accumulated.Daylight
In Cass, New Zealand, the average length of the day in September is 11h and 48min.On the first day of September, sunrise is at 6:59 am and sunset at 6:06 pm NZST. On the last day of the month, sunrise is at 7:07 am and sunset at 7:38 pm NZDT.
Note: On Sunday, 29. September 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from NZST to NZDT. Daylight Saving Time lasts until Sunday, 06. April 2025, at 3:00 am; consequently, the time zone reverts from NZDT to NZST.
Sunshine
The average sunshine in September is 5.3h.UV index
The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 during September translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
How cold is September in Cass?
What is the average humidity in September in Cass?
How much does it rain in Cass in September?
How many days does it snow in September in Cass?
What is the average length of the day in September in Cass?
What time are sunrise and sunset in September in Cass?
When does Daylight Saving Time (DST) start in September in Cass?
How long on average sun shines in September in Cass?
What is the UV index reading in September in Cass?
Average temperature in September
Cass, New Zealand
- Average high temperature in September: 5.5°C
The warmest month (with the highest average high temperature) is February (15.7°C).
The month with the lowest average high temperature is July (3.5°C).
- Average low temperature in September: -1.1°C
The months with the highest average low temperature are January and February (6.4°C).
The coldest month (with the lowest average low temperature) is July (-2.4°C).
Average pressure in September
Cass, New Zealand
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is March (1017.3mbar).
The months with the lowest atmospheric pressure are September and November (1011.7mbar).
Average wind speed in September
Cass, New Zealand
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is January (12.6km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity in September
Cass, New Zealand
- Average humidity in September: 91%
The months with the highest relative humidity are July and August (92%).
The months with the lowest relative humidity are January and February (83%).
Average rainfall in September
Cass, New Zealand
- Average rainfall in September: 114mm
The wettest month (with the highest rainfall) is November (176mm).
The driest month (with the least rainfall) is February (87mm).
Average rainfall days in September
Cass, New Zealand
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is July (7.3 days).
Average snowfall in September
Cass, New Zealand
- Average snowfall in September: 428mm
The month with the highest snowfall is August (734mm).
The month with the least snowfall is January (9mm).
Average snowfall days in September
Cass, New Zealand
- Average snowfall days in September: 16.5 days
The month with the highest number of snowfall days is August (20.3 days).
The month with the least snowfall days is February (0.8 days).
Average daylight in September /
Average sunshine in September
Cass, New Zealand
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 15h and 18min).
The month with the shortest days is June (Average daylight: 9h and 6min).
- Average sunshine in September: 5h and 2min
The month with the most sunshine is December (Average sunshine: 8h and 0min).
The month with the least sunshine is June (Average sunshine: 4h and 18min).
Average sunshine days in September
Cass, New Zealand
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is March (14.1 days).
The month with the least sunshine days is October (7.4 days).
Average UV index in September
Cass, New Zealand
- Average UV index in September: 2
The month with the highest UV index is January (UV index 4).
The months with the lowest UV index are June and July (UV index 1).
Average cloud cover in September
Cass, New Zealand
- Average cloud cover in September: 64
The month with the most cloud cover is October (Cloud cover 68).
The month with the least cloud cover is February (Cloud cover 55).
Average visibility in September
Cass, New Zealand
- Average visibility in September: 7km
The months with the highest visibility are January, March and December (8km).
The month with the lowest visibility is August (6km).
Cass, New Zealand
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