April weather forecast
Larkspur, CA

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Weather in April

April is a comfortable spring month in Larkspur, California, with an average temperature fluctuating between 48.6°F (9.2°C) and 62.8°F (17.1°C).

Temperature

Larkspur greets April with an average high-temperature of a still refreshing 62.8°F (17.1°C), marking a slight deviation from the preceding month. Nighttime temperatures consistently average a frosty 48.6°F (9.2°C) during April.

Humidity

In Larkspur, the average relative humidity in April is 74%.

Rainfall

In April, the rain falls for 5.5 days. Throughout April, 0.2" (5mm) of precipitation is accumulated. Throughout the year, there are 48 rainfall days, and 3.94" (100mm) of precipitation is accumulated.

Daylight

In April, the average length of the day is 13h and 13min.
On the first day of April, sunrise is at 6:53 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:00 pm PDT.

Sunshine

In Larkspur, the average sunshine in April is 10h.

UV index

The months with the highest UV index are April, June through September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In April, the maximum UV index of 5 suggests this advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

What is the usual temperature for Larkspur in April?

In April, in Larkspur, the average high-temperature is 62.8°F (17.1°C), and the average low-temperature is 48.6°F (9.2°C).

What is the average humidity in April?

In Larkspur, the average relative humidity in April is 74%.

How much does it rain in April?

In Larkspur, California, in April, it is raining for 5.5 days, with typically 0.2" (5mm) of accumulated precipitation.

How many hours of daylight does Larkspur have in April?

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

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:53 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:00 pm PDT.

How long on average sun shines in April in Larkspur?

The average sunshine duration in April is 10h.

When is the highest UV index?

April, June through September, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index reading in April?

In April, the average daily maximum UV index in Larkspur is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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 April
Larkspur, CA

Average temperature in April - Larkspur, CA
  • Average high temperature in April: 62.8°F

The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in April: 48.6°F

The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

Average pressure in April
Larkspur, CA

Average pressure in April - Larkspur, CA
  • Average pressure in April: 30.03"Hg

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

Average wind speed in April
Larkspur, CA

Average wind speed in April - Larkspur, CA
  • Average wind speed in April: 7.6mph

The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).

Average humidity in April
Larkspur, CA

Average humidity in April - Larkspur, CA
  • Average humidity in April: 74%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).

Average rainfall in April
Larkspur, CA

Average rainfall in April - Larkspur, CA
  • Average rainfall in April: 0.2"

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

Average rainfall days in April
Larkspur, CA

Average rainfall days in April - Larkspur, CA
  • Average rainfall days in April: 5.5 days

The month with the highest number of rainy days is March (8.8 days).
The months with the least rainy days are June and August (1.2 days).

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

Average daylight in April / Average sunshine in April - Larkspur, CA
  • Average daylight in April: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in April: 10h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in April
Larkspur, CA

Average sunshine days in April - Larkspur, CA
  • Average sunshine days in April: 23.3 days

The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).

Average UV index in April
Larkspur, CA

Average UV index in April - Larkspur, CA
  • Average UV index in April: 5

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

Average cloud cover in April
Larkspur, CA

Average cloud cover in April - Larkspur, CA
  • Average cloud cover in April: 30

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

Average visibility in April
Larkspur, CA

Average visibility in April - Larkspur, 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).

Larkspur, California, USA

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