May weather forecast
Belmont, CA

Weather in May

The last month of the spring, May, is another comfortable month in Belmont, California, with an average temperature varying between 65.1°F (18.4°C) and 50°F (10°C).

Temperature

In May, the average high-temperature is practically the same as in April - a still comfortable 65.1°F (18.4°C). In Belmont, in May, the average low-temperature is 50°F (10°C).

Humidity

In Belmont, the average relative humidity in May is 73%.

Rainfall

In May, the rain falls for 5.9 days. Throughout May, 0.59" (15mm) of precipitation is accumulated. Throughout the year, in Belmont, California, there are 77.5 rainfall days, and 11.22" (285mm) of precipitation is accumulated.

Daylight

In Belmont, California, the average length of the day in May is 14h and 13min.
On the first day of May, sunrise is at 6:13 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.

Sunshine

In May, the average sunshine in Belmont is 10.7h.

UV index

In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 4 in May transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Belmont?

In Belmont, California, in May, the average high-temperature is 65.1°F (18.4°C), and the average low-temperature is 50°F (10°C).

What is the average humidity in May in Belmont?

In Belmont, the average relative humidity in May is 73%.

How much does it rain in Belmont in May?

In Belmont, in May, it is raining for 5.9 days, with typically 0.59" (15mm) of accumulated precipitation.

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

In May, the average day length in Belmont is 14h and 13min.

When is the sunrise / sunset in May in Belmont?

In May, on the first day of the month, sunrise is at 6:13 am and sunset at 7:58 pm. On the last day of the month, in Belmont, sunrise is at 5:49 am and sunset at 8:23 pm PDT.

How many hours of sunshine does Belmont have in May?

In May, the average sunshine duration in Belmont, California, is 10.7h.

What is the UV index reading in May in Belmont?

In Belmont, California, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Belmont, CA

Average temperature in May - Belmont, CA
  • Average high temperature in May: 65.1°F

The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (55.9°F).

  • Average low temperature in May: 50°F

The month with the highest average low temperature is September (56.7°F).
The coldest month (with the lowest average low temperature) is January (46°F).

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Average pressure in May
Belmont, CA

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

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

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Average wind speed in May
Belmont, CA

Average wind speed in May - Belmont, CA
  • Average wind speed in May: 7.4mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is October (5.5mph).

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Average humidity in May
Belmont, CA

Average humidity in May - Belmont, CA
  • Average humidity in May: 73%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in May
Belmont, CA

Average rainfall in May - Belmont, CA
  • Average rainfall in May: 0.59"

The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in May
Belmont, CA

Average rainfall days in May - Belmont, CA
  • Average rainfall days in May: 5.9 days

The month with the highest number of rainy days is March (13 days).
The month with the least rainy days is July (1.8 days).

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Average daylight in May /
Average sunshine in May
Belmont, CA

Average daylight in May / Average sunshine in May - Belmont, CA
  • Average daylight in May: 14h and 13min

The month with the longest days is June (Average daylight: 14h and 43min).
The month with the shortest days is December (Average daylight: 9h and 37min).

  • Average sunshine in May: 10h and 42min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in May
Belmont, CA

Average sunshine days in May - Belmont, CA
  • Average sunshine days in May: 21.6 days

The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (16.3 days).

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Average UV index in May
Belmont, CA

Average UV index in May - Belmont, CA
  • Average UV index in May: 4

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

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Average cloud cover in May
Belmont, CA

Average cloud cover in May - Belmont, CA
  • Average cloud cover in May: 25

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in May
Belmont, CA

Average visibility in May - Belmont, 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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