April weather forecast
Belmont, CA

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Weather in April

April is a refreshing spring month in Belmont, California, with an average temperature fluctuating between 48°F (8.9°C) and 62.6°F (17°C).

Temperature

As Belmont welcomes April, the average high-temperature is noted at a still refreshing 62.6°F (17°C), closely aligning with the preceding month. During the nights in April, Belmont experiences a consistent average temperature of 48°F (8.9°C).

Humidity

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

Rainfall

In April, the rain falls for 8.1 days. Throughout April, 0.67" (17mm) of precipitation is accumulated. In Belmont, during the entire year, the rain falls for 77.5 days and collects up to 11.22" (285mm) of precipitation.

Daylight

In Belmont, the average length of the day in April is 13h and 11min.
On the first day of the month, sunrise is at 6:53 am and sunset at 7:32 pm. On the last day of April, sunrise is at 6:13 am and sunset at 7:58 pm PDT.

Sunshine

In Belmont, the average sunshine in April is 10.3h.

UV index

In Belmont, California, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: A daily high UV index of 4 in April leads to these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are April temperatures?

The high-temperature in Belmont during April is 62.6°F (17°C) and the low-temperature is 48°F (8.9°C).

What is the average humidity in April?

The average relative humidity in April is 73%.

How much does it rain in April?

In Belmont, during April, the rain falls for 8.1 days and regularly aggregates up to 0.67" (17mm) of precipitation.

What is the average length of the day in April?

In Belmont, the average day length in April is 13h and 11min.

When is the sunrise / sunset in April?

On the first day of April, sunrise is at 6:53 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 7:58 pm PDT.

How many hours of sunshine does Belmont have in April?

In Belmont, the average sunshine duration in April is 10.3h.

What is the UV index intensity in April?

In April, the average daily maximum UV index in Belmont is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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 April
Belmont, CA

Average temperature in April - Belmont, CA
  • Average high temperature in April: 62.6°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 April: 48°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).

Average pressure in April
Belmont, CA

Average pressure in April - Belmont, CA
  • Average pressure in April: 30.04"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).

Average wind speed in April
Belmont, CA

Average wind speed in April - Belmont, CA
  • Average wind speed in April: 7.5mph

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).

Average humidity in April
Belmont, CA

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

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

Average rainfall in April
Belmont, CA

Average rainfall in April - Belmont, CA
  • Average rainfall in April: 0.67"

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

Average rainfall days in April
Belmont, CA

Average rainfall days in April - Belmont, CA
  • Average rainfall days in April: 8.1 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).

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

Average daylight in April / Average sunshine in April - Belmont, CA
  • Average daylight in April: 13h 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 April: 10h and 2min

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).

Average sunshine days in April
Belmont, CA

Average sunshine days in April - Belmont, CA
  • Average sunshine days in April: 20.2 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).

Average UV index in April
Belmont, CA

Average UV index in April - Belmont, CA
  • Average UV index in April: 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).

Average cloud cover in April
Belmont, CA

Average cloud cover in April - Belmont, CA
  • Average cloud cover in April: 27

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

Average visibility in April
Belmont, CA

Average visibility in April - Belmont, CA
  • Average visibility in April: 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).

Belmont, California, USA

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