May weather forecast
Big Sur, CA

Share

Weather in May

May indicates the arrival of a mellow warmth in Big Sur, nudging the thermometer slightly upwards by comparison with April's figures. Concluding the spring season, May sets the stage for the forthcoming summer with its temperate weather conditions. Rainfall becomes a sporadic visitor, witnessed only occasionally, dipping to 0.47" (12mm) divided across 4.2 days. Let every moment seep in as May showers paint a stunning canvas against an azure sky, making it a haven for photographers and nature lovers alike.

Temperature

The transition into May notes an average high-temperature of a comfortable 61.9°F (16.6°C), revealing a mild distinction from the 60.1°F (15.6°C) in April. During May, Big Sur's temperature falls to a steady low-temperature average of 50°F (10°C).

Humidity

In Big Sur, the average relative humidity in May is 78%.

Rainfall

In Big Sur, during May, the rain falls for 4.2 days and regularly aggregates up to 0.47" (12mm) of precipitation. In Big Sur, during the entire year, the rain falls for 70 days and collects up to 11.93" (303mm) of precipitation.

Ocean temperature

March through May, with an average ocean temperature of 53.6°F (12°C), are months with the coldest seawater.
Note: Navigating the 53.6°F (12°C) at 55.4°F (13°C) is no joy, and temperatures less than 50°F (10°C) can threaten breathing and cause a chilling shock, gauging personal stamina.

Daylight

In Big Sur, the average length of the day in May is 14h and 7min.
On the first day of May, sunrise is at 6:13 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:19 pm PDT.

Sunshine

In May, the average sunshine is 10.6h.

UV index

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: In May, an average UV index of 4 transforms into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

What is the temperature in May?

An average high-temperature, in May, in Big Sur, is 61.9°F (16.6°C) and the average low-temperature is 50°F (10°C).

What is the average humidity in May?

The average relative humidity in May is 78%.

How much does it rain in Big Sur in May?

In Big Sur, in May, it is raining for 4.2 days, with typically 0.47" (12mm) of accumulated precipitation.

When is the ocean coldest?

March through May, with an average ocean temperature of 53.6°F (12°C), are months with the coldest seawater in Big Sur.

How cold is the water in May?

In Big Sur, in May, the average water temperature is 53.6°F (12°C). Swimming in 53.6°F (12°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Big Sur have in May?

The average day length in May is 14h and 7min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:13 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:19 pm PDT.

How long on average sun shines in May?

In May, the average sunshine duration is 10.6h.

What is the UV index reading in May?

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes 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
Big Sur, CA

Average temperature in May - Big Sur, CA
  • Average high temperature in May: 61.9°F

The warmest month (with the highest average high temperature) is September (69.6°F).
The month with the lowest average high temperature is December (57°F).

  • Average low temperature in May: 50°F

The month with the highest average low temperature is September (55.4°F).
The coldest month (with the lowest average low temperature) is December (46.9°F).

Average pressure in May
Big Sur, CA

Average pressure in May - Big Sur, CA
  • Average pressure in May: 29.99"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 (29.93"Hg).

Average wind speed in May
Big Sur, CA

Average wind speed in May - Big Sur, CA
  • Average wind speed in May: 8.4mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in May
Big Sur, CA

Average humidity in May - Big Sur, CA
  • Average humidity in May: 78%

The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is November (70%).

Average rainfall in May
Big Sur, CA

Average rainfall in May - Big Sur, CA
  • Average rainfall in May: 0.47"

The wettest month (with the highest rainfall) is December (2.48").
The driest month (with the least rainfall) is August (0.04").

Average rainfall days in May
Big Sur, CA

Average rainfall days in May - Big Sur, CA
  • Average rainfall days in May: 4.2 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (1.3 days).

Average sea temperature in May
Big Sur, CA

Average sea temperature in May - Big Sur, CA
  • Average sea temperature in May: 54°F

The best months for swimming (with the highest average sea temperature) are August, September and October (59°F).
The coldest months (with the lowest average sea temperature) are March, April and May (54°F).

Average daylight in May /
Average sunshine in May
Big Sur, CA

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

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

  • Average sunshine in May: 10h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in May
Big Sur, CA

Average sunshine days in May - Big Sur, CA
  • Average sunshine days in May: 24.3 days

The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (17.3 days).

Average UV index in May
Big Sur, CA

Average UV index in May - Big Sur, CA
  • Average UV index in May: 4

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

Average cloud cover in May
Big Sur, CA

Average cloud cover in May - Big Sur, CA
  • Average cloud cover in May: 27

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 13).

Average visibility in May
Big Sur, CA

Average visibility in May - Big Sur, 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).

Big Sur, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location