Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
The arrival of May sees a recorded average high-temperature of a mild 13.6°C (56.5°F), showing little divergence from the previous month's conditions. Throughout May, an average nighttime temperature of 6.4°C (43.5°F) is experienced.Humidity
In Selwyn, the average relative humidity in May is 78%.Rainfall
In Selwyn, in May, during 8 rainfall days, 21mm (0.83") of precipitation is typically accumulated. Throughout the year, there are 114.3 rainfall days, and 300mm (11.81") of precipitation is accumulated.Snowfall
January through May, October through December are months without snowfall.Daylight
The average length of the day in May is 9h and 38min.On the first day of May, sunrise is at 7:23 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:03 pm NZST.
Sunshine
In May, the average sunshine is 7.5h.UV index
The months with the lowest UV index in Selwyn, New Zealand, are April through September, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, a daily maximum UV index of 3 leads to the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Selwyn?
What is the average humidity in May in Selwyn?
How many days does it rain in May in Selwyn?
When it does not snow in Selwyn?
Does it snow in Selwyn in May?
How many hours of daylight does Selwyn have in May?
What time are sunrise and sunset in May in Selwyn?
How many hours of sunshine does Selwyn have in May?
What are the months with the lowest UV index in Selwyn?
How high is the UV index in May in Selwyn?
Average temperature in May
Selwyn, New Zealand
- Average high temperature in May: 13.6°C
The warmest month (with the highest average high temperature) is January (21.3°C).
The month with the lowest average high temperature is July (10.3°C).
- Average low temperature in May: 6.4°C
The month with the highest average low temperature is January (11.9°C).
The coldest month (with the lowest average low temperature) is July (3.8°C).
Average pressure in May
Selwyn, New Zealand
- Average pressure in May: 1012.8mbar
The month with the highest atmospheric pressure is March (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in May
Selwyn, New Zealand
- Average wind speed in May: 13.4km/h
The windiest month (with the highest average wind speed) is January (15.3km/h).
The calmest month (with the lowest average wind speed) is August (12.4km/h).
Average humidity in May
Selwyn, New Zealand
- Average humidity in May: 78%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is January (70%).
Average rainfall in May
Selwyn, New Zealand
- Average rainfall in May: 21mm
The wettest month (with the highest rainfall) is October (38mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in May
Selwyn, New Zealand
- Average rainfall days in May: 8 days
The month with the highest number of rainy days is October (12.5 days).
The month with the least rainy days is May (8 days).
Average snowfall in May
Selwyn, New Zealand
- Average snowfall in May: 0mm
The month with the highest snowfall is August (5mm).
The months with the least snowfall are January, February, March, April, May, October, November and December (0mm).
Average snowfall days in May
Selwyn, New Zealand
- Average snowfall days in May: 0.1 days
The months with the highest number of snowfall days are June and August (0.3 days).
The months with the least snowfall days are January, February, March, April, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Selwyn, New Zealand
- Average daylight in May: 9h and 4min
The month with the longest days is December (Average daylight: 15h and 24min).
The month with the shortest days is June (Average daylight: 9h and 0min).
- Average sunshine in May: 7h and 3min
The month with the most sunshine is December (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 6min).
Average sunshine days in May
Selwyn, New Zealand
- Average sunshine days in May: 21.2 days
The month with the most sunshine days is May (21.2 days).
The month with the least sunshine days is November (17.3 days).
Average UV index in May
Selwyn, New Zealand
- Average UV index in May: 3
The month with the highest UV index is January (UV index 5).
The months with the lowest UV index are April, May, June, July, August and September (UV index 3).
Average cloud cover in May
Selwyn, New Zealand
- Average cloud cover in May: 37
The month with the most cloud cover is June (Cloud cover 43).
The months with the least cloud cover are January, February, March and May (Cloud cover 37).
Average visibility in May
Selwyn, New Zealand
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, June, July and December (10km).
The months with the lowest visibility are May, August, September, October and November (9km).
