May weather forecast
Tempe, AZ

The Tempe Town Lake of Tempe City, Arizona
The Tempe Town Lake of Tempe City, Arizona

Weather in May

May, the last month of the spring in Tempe, is a hot month, with an average temperature ranging between max 90.1°F (32.3°C) and min 67.1°F (19.5°C).

Temperature

In Tempe, the average high-temperature in May marginally rises from a warm 82.6°F (28.1°C) in April to a tropical 90.1°F (32.3°C). In Tempe, in May, the average low-temperature is 67.1°F (19.5°C).

Humidity

In Tempe, the average relative humidity in May is 19%.

Rainfall

In May, the rain falls for 1.8 days. Throughout May, 0.12" (3mm) of precipitation is accumulated. In Tempe, during the entire year, the rain falls for 57.7 days and collects up to 7.72" (196mm) of precipitation.

Daylight

In May, the average length of the day is 13h and 54min.
On the first day of the month, sunrise is at 5:39 am and sunset at 7:10 pm. On the last day of May, in Tempe, sunrise is at 5:19 am and sunset at 7:31 pm MST.

Sunshine

The average sunshine in May in Tempe is 11.9h.

UV index

May through August, with an average maximum UV index of 8, are months with the highest UV index in Tempe. A UV Index reading of 8 to 10 represents a very high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the average maximum UV index of 8 translate into the following recommendations:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in May in Tempe?

In May, in Tempe, Arizona, the average high-temperature is 90.1°F (32.3°C), and the average low-temperature is 67.1°F (19.5°C).

What is the average humidity in May in Tempe?

In May, the average relative humidity in Tempe, Arizona, is 19%.

How many days does it rain in May in Tempe?

In Tempe, Arizona, in May, during 1.8 rainfall days, 0.12" (3mm) of precipitation is typically accumulated.

What is the average length of the day in May in Tempe?

In Tempe, the average day length in May is 13h and 54min.

What time are sunrise and sunset in May in Tempe?

In May, on the first day of the month, sunrise is at 5:39 am and sunset at 7:10 pm. On the last day of the month, in Tempe, Arizona, sunrise is at 5:19 am and sunset at 7:31 pm MST.

How many hours of sunshine does Tempe have in May?

The average sunshine duration in May in Tempe, Arizona, is 11.9h.

What is the month with the highest UV index in Tempe?

The months with the highest UV index in Tempe, Arizona, are May through August, with an average maximum UV index of 8.

What is the UV index reading in May in Tempe?

In Tempe, the average daily maximum UV index in May is 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Tempe, AZ

Average temperature in May - Tempe, AZ
  • Average high temperature in May: 90.1°F

The warmest month (with the highest average high temperature) is July (102.6°F).
The month with the lowest average high temperature is December (62.8°F).

  • Average low temperature in May: 67.1°F

The month with the highest average low temperature is August (84.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).

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Average pressure in May
Tempe, AZ

Average pressure in May - Tempe, AZ
  • Average pressure in May: 29.84"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).

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Average wind speed in May
Tempe, AZ

Average wind speed in May - Tempe, AZ
  • Average wind speed in May: 6.3mph

The windiest months (with the highest average wind speed) are April and May (6.3mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).

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Average humidity in May
Tempe, AZ

Average humidity in May - Tempe, AZ
  • Average humidity in May: 19%

The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (16%).

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Average rainfall in May
Tempe, AZ

Average rainfall in May - Tempe, AZ
  • Average rainfall in May: 0.12"

The wettest month (with the highest rainfall) is July (1.14").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in May
Tempe, AZ

Average rainfall days in May - Tempe, AZ
  • Average rainfall days in May: 1.8 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is June (1 days).

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Average daylight in May /
Average sunshine in May
Tempe, AZ

Average daylight in May / Average sunshine in May - Tempe, AZ
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 11h and 5min

The months with the most sunshine are June and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

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Average sunshine days in May
Tempe, AZ

Average sunshine days in May - Tempe, AZ
  • Average sunshine days in May: 28.7 days

The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is July (16.8 days).

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Average UV index in May
Tempe, AZ

Average UV index in May - Tempe, AZ
  • Average UV index in May: 8

The months with the highest UV index are May, June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in May
Tempe, AZ

Average cloud cover in May - Tempe, AZ
  • Average cloud cover in May: 8

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in May
Tempe, AZ

Average visibility in May - Tempe, AZ
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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