May weather forecast
Mountain View, CA

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A street in Mountain View Town, California, with neon-lit building, trees, and parked cars
A street in Mountain View Town, California, with neon-lit building, trees, and parked cars

Weather in May

May, the last month of the spring in Mountain View, is a pleasant month, with temperature in the range of an average high of 69.3°F (20.7°C) and an average low of 49.5°F (9.7°C).

Temperature

The average high-temperature during May registers at a pleasant 69.3°F (20.7°C), maintaining a close resemblance to the previous month. Mountain View in May anticipates an average nighttime temperature of 49.5°F (9.7°C).

Humidity

The average relative humidity in May is 68%.

Rainfall

In May, in Mountain View, California, the rain falls for 3.6 days. Throughout May, 0.2" (5mm) of precipitation is accumulated. Throughout the year, in Mountain View, there are 53.1 rainfall days, and 4.41" (112mm) of precipitation is accumulated.

Daylight

In May, the average length of the day in Mountain View is 14h and 12min.
On the first day of the month, sunrise is at 6:12 am and sunset at 7:58 pm. On the last day of May, in Mountain View, sunrise is at 5:49 am and sunset at 8:23 pm PDT.

Sunshine

The average sunshine in May is 10.9h.

UV index

The average daily maximum UV index in May in Mountain View is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In May, a daily UV index of 5 turns into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What is the usual temperature for Mountain View in May?

In May, in Mountain View, the average high-temperature is 69.3°F (20.7°C), and the average low-temperature is 49.5°F (9.7°C).

What is the average humidity in May in Mountain View?

In Mountain View, California, the average relative humidity in May is 68%.

How many days does it rain in May in Mountain View?

In Mountain View, California, in May, during 3.6 rainfall days, 0.2" (5mm) of precipitation is typically accumulated.

How many hours of daylight does Mountain View have in May?

In May, the average day length in Mountain View, California, is 14h and 12min.

When are sunrise and sunset in May in Mountain View?

In May, on the first day of the month, sunrise is at 6:12 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:23 pm PDT.

How long on average sun shines in May in Mountain View?

In May, the average sunshine duration in Mountain View is 10.9h.

How high is the UV index in May in Mountain View?

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

Average temperature in May
Mountain View, CA

Average temperature in May - Mountain View, CA
  • Average high temperature in May: 69.3°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (56.5°F).

  • Average low temperature in May: 49.5°F

The month with the highest average low temperature is August (56.8°F).
The coldest month (with the lowest average low temperature) is December (44.1°F).

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Average pressure in May
Mountain View, CA

Average pressure in May - Mountain View, CA
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.92"Hg).

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Average wind speed in May
Mountain View, CA

Average wind speed in May - Mountain View, CA
  • Average wind speed in May: 6.2mph

The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest months (with the lowest average wind speed) are August, September, October and November (4.7mph).

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Average humidity in May
Mountain View, CA

Average humidity in May - Mountain View, CA
  • Average humidity in May: 68%

The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are July, September and October (63%).

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Average rainfall in May
Mountain View, CA

Average rainfall in May - Mountain View, CA
  • Average rainfall in May: 0.2"

The wettest months (with the highest rainfall) are February, March and December (0.83").
The driest months (with the least rainfall) are June, July and August (0.04").

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Average rainfall days in May
Mountain View, CA

Average rainfall days in May - Mountain View, CA
  • Average rainfall days in May: 3.6 days

The month with the highest number of rainy days is March (10 days).
The month with the least rainy days is August (0.4 days).

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Average daylight in May /
Average sunshine in May
Mountain View, CA

Average daylight in May / Average sunshine in May - Mountain View, CA
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 10h and 5min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in May
Mountain View, CA

Average sunshine days in May - Mountain View, CA
  • Average sunshine days in May: 25.8 days

The months with the most sunshine days are July and August (29.8 days).
The month with the least sunshine days is March (19.4 days).

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Average UV index in May
Mountain View, CA

Average UV index in May - Mountain View, CA
  • Average UV index in May: 5

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in May
Mountain View, CA

Average cloud cover in May - Mountain View, CA
  • Average cloud cover in May: 22

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in May
Mountain View, CA

Average visibility in May - Mountain View, CA
  • 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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Mountain View, California, USA

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