May weather forecast
Grover Beach, CA

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Weather in May

May, the last month of the spring in Grover Beach, is a pleasant month, with temperature in the range of an average high of 70.5°F (21.4°C) and an average low of 51.4°F (10.8°C).

Temperature

Grover Beach experiences an average high-temperature of an agreeable 70.5°F (21.4°C) with the onset of May, subtly varied from April's 67.6°F (19.8°C). An average nighttime temperature of 51.4°F (10.8°C) is noted during the month of May.

Humidity

The average relative humidity in May is 65%.

Rainfall

In May, the rain falls for 3 days. Throughout May, 0.16" (4mm) of precipitation is accumulated. In Grover Beach, during the entire year, the rain falls for 47.6 days and collects up to 6.93" (176mm) of precipitation.

Daylight

In Grover Beach, California, the average length of the day in May is 14h and 2min.
On the first day of May, sunrise is at 6:10 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:11 pm PDT.

Sunshine

In May, the average sunshine is 11.4h.

UV index

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: In May, a daily UV index of 5 turns into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

May temperatures vary between a high-temperature of 70.5°F (21.4°C) and a low-temperature of 51.4°F (10.8°C).

What is the average humidity in May?

In May, the average relative humidity is 65%.

How many days does it rain in May?

In May, the rain falls for 3 days. Throughout May, 0.16" (4mm) of precipitation is accumulated.

How many hours of daylight does Grover Beach have in May?

In May, the average day length is 14h and 2min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:10 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:11 pm PDT.

How long on average sun shines in May?

The average sunshine duration in May is 11.4h.

What is the UV index intensity in May in Grover Beach?

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Grover Beach, CA

Average temperature in May - Grover Beach, CA
  • Average high temperature in May: 70.5°F

The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (46°F).

Average pressure in May
Grover Beach, CA

Average pressure in May - Grover Beach, CA
  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).

Average wind speed in May
Grover Beach, CA

Average wind speed in May - Grover Beach, CA
  • Average wind speed in May: 7.3mph

The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in May
Grover Beach, CA

Average humidity in May - Grover Beach, CA
  • Average humidity in May: 65%

The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).

Average rainfall in May
Grover Beach, CA

Average rainfall in May - Grover Beach, CA
  • Average rainfall in May: 0.16"

The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").

Average rainfall days in May
Grover Beach, CA

Average rainfall days in May - Grover Beach, CA
  • Average rainfall days in May: 3 days

The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).

Average daylight in May /
Average sunshine in May
Grover Beach, CA

Average daylight in May / Average sunshine in May - Grover Beach, CA
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in May: 11h and 2min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).

Average sunshine days in May
Grover Beach, CA

Average sunshine days in May - Grover Beach, CA
  • Average sunshine days in May: 27.2 days

The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).

Average UV index in May
Grover Beach, CA

Average UV index in May - Grover Beach, CA
  • Average UV index in May: 5

The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).

Average cloud cover in May
Grover Beach, CA

Average cloud cover in May - Grover Beach, CA
  • Average cloud cover in May: 16

The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 6).

Average visibility in May
Grover Beach, CA

Average visibility in May - Grover Beach, 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).

Grover Beach, California, USA

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