May weather forecast
Masterton, New Zealand

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Weather in May

May marks the transition from autumn to winter in Masterton, New Zealand, with an even considerable drop in temperature from April. The daylight hours are now noticeably shorter, registering an average of 9.9 hours. May experiences one of the highest monthly rainfalls in the year, with an average of 59mm (2.32"). The month maintains relatively high humidity at 83%, adding to the perceptible chill in the air. With declining daylight hours and increasing rainfall, May is the doorway to the cooler winter months.

Temperature

The introduction of May in Masterton notes a subtle temperature variation to a still refreshing 13.8°C (56.8°F) from April's 15.8°C (60.4°F). A mean low-temperature of 9.7°C (49.5°F) is a distinguishing feature of May, indicating a slight dip from daytime highs.

Humidity

The average relative humidity in May is 83%.

Rainfall

In May, in Masterton, the rain falls for 15 days. Throughout May, 59mm (2.32") of precipitation is accumulated. In Masterton, New Zealand, during the entire year, the rain falls for 172.3 days and collects up to 622mm (24.49") of precipitation.

Snowfall

In Masterton, snow does not fall in January through July, September through December.

Daylight

In May, the average length of the day in Masterton is 9h and 52min.
On the first day of May in Masterton, sunrise is at 7:04 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:58 pm NZST.

Sunshine

In May, the average sunshine is 6.9h.

UV index

The months with the lowest UV index are May through August, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 3 during May leads to these instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

What is the usual temperature for Masterton in May?

The average high-temperature, in May, in Masterton, is 13.8°C (56.8°F), while the average low-temperature is 9.7°C (49.5°F).

What is the average humidity in May in Masterton?

In Masterton, the average relative humidity in May is 83%.

How many days does it rain in May in Masterton?

In Masterton, in May, it is raining for 15 days, with typically 59mm (2.32") of accumulated precipitation.

When it does not snow in Masterton?

In Masterton, New Zealand, snow does not fall in January through July, September through December.

How many hours of daylight does Masterton have in May?

In Masterton, the average day length in May is 9h and 52min.

When is the sunrise / sunset in May in Masterton?

In May, on the first day of the month, sunrise is at 7:04 am and sunset at 5:24 pm. On the last day of the month, in Masterton, sunrise is at 7:31 am and sunset at 4:58 pm NZST.

How many hours of sunshine does Masterton have in May?

In May, the average sunshine duration in Masterton is 6.9h.

What are the months with the lowest UV index in Masterton?

May through August, with an average maximum UV index of 3, are months with the lowest UV index in Masterton.

What is the UV index reading in May in Masterton?

In May, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Masterton, New Zealand

Average temperature in May - Masterton, New Zealand
  • Average high temperature in May: 13.8°C

The warmest month (with the highest average high temperature) is February (19.7°C).
The month with the lowest average high temperature is July (10.8°C).

  • Average low temperature in May: 9.7°C

The month with the highest average low temperature is February (13.9°C).
The coldest month (with the lowest average low temperature) is July (7.1°C).

Average pressure in May
Masterton, New Zealand

Average pressure in May - Masterton, New Zealand
  • Average pressure in May: 1014.1mbar

The month with the highest atmospheric pressure is March (1017.8mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).

Average wind speed in May
Masterton, New Zealand

Average wind speed in May - Masterton, New Zealand
  • Average wind speed in May: 19.4km/h

The windiest month (with the highest average wind speed) is September (20.6km/h).
The calmest month (with the lowest average wind speed) is March (16.9km/h).

Average humidity in May
Masterton, New Zealand

Average humidity in May - Masterton, New Zealand
  • Average humidity in May: 83%

The month with the highest relative humidity is June (84%).
The months with the lowest relative humidity are January, February and November (80%).

Average rainfall in May
Masterton, New Zealand

Average rainfall in May - Masterton, New Zealand
  • Average rainfall in May: 59mm

The wettest months (with the highest rainfall) are June and July (66mm).
The driest month (with the least rainfall) is February (29mm).

Average rainfall days in May
Masterton, New Zealand

Average rainfall days in May - Masterton, New Zealand
  • Average rainfall days in May: 15 days

The month with the highest number of rainy days is October (17.5 days).
The month with the least rainy days is February (9.2 days).

Average snowfall days in May
Masterton, New Zealand

Average snowfall days in May - Masterton, New Zealand
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is August (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, September, October, November and December (0 days).

Average daylight in May /
Average sunshine in May
Masterton, New Zealand

Average daylight in May / Average sunshine in May - Masterton, New Zealand
  • Average daylight in May: 9h and 5min

The month with the longest days is December (Average daylight: 15h and 6min).
The month with the shortest days is June (Average daylight: 9h and 18min).

  • Average sunshine in May: 6h and 5min

The month with the most sunshine is November (Average sunshine: 8h and 48min).
The month with the least sunshine is June (Average sunshine: 4h and 54min).

Average sunshine days in May
Masterton, New Zealand

Average sunshine days in May - Masterton, New Zealand
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is March (18.4 days).
The month with the least sunshine days is September (10.7 days).

Average UV index in May
Masterton, New Zealand

Average UV index in May - Masterton, New Zealand
  • Average UV index in May: 3

The months with the highest UV index are January, February and December (UV index 5).
The months with the lowest UV index are May, June, July and August (UV index 3).

Average cloud cover in May
Masterton, New Zealand

Average cloud cover in May - Masterton, New Zealand
  • Average cloud cover in May: 43

The month with the most cloud cover is June (Cloud cover 49).
The month with the least cloud cover is February (Cloud cover 34).

Average visibility in May
Masterton, New Zealand

Average visibility in May - Masterton, New Zealand
  • Average visibility in May: 9km

The months with the highest visibility are February and March (10km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (9km).

Masterton, New Zealand

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