May weather forecast
California, Trinidad and Tobago

May

Weather in May

The last month of the spring, May, is also a moderately hot month in California, Trinidad and Tobago, with an average temperature ranging between max 29.8°C (85.6°F) and min 26.2°C (79.2°F).

Temperature

The onset of May marks an average high-temperature of a still moderately hot 29.8°C (85.6°F), hardly differing from April's 29.6°C (85.3°F). May is characterized by a steady nighttime low-temperature of 26.2°C (79.2°F).

Heat index

Throughout May, the heat index is appraised at a very hot 36°C (96.8°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In May, the average relative humidity is 75%.

Rainfall

In California, during May, the rain falls for 13 days and regularly aggregates up to 20mm (0.79") of precipitation. In California, during the entire year, the rain falls for 202.6 days and collects up to 599mm (23.58") of precipitation.

Daylight

In California, the average length of the day in May is 12h and 37min.
On the first day of May in California, sunrise is at 05:47 and sunset at 18:18. On the last day of the month, sunrise is at 05:42 and sunset at 18:24 AST.

Sunshine

In California, the average sunshine in May is 10.3h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in California, Trinidad and Tobago. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 7 during May translates into the following directions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

How hot is it in California in May?
In California, 29.8°C (85.6°F) is the average high-temperature and 26.2°C (79.2°F) is the average low-temperature during May. In May, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 36°C (96.8°F).
What is the average humidity in May in California?
The average relative humidity in May in California, Trinidad and Tobago, is 75%.
How many days does it rain in May in California?
In California, during May, the rain falls for 13 days and regularly aggregates up to 20mm (0.79") of precipitation.
What is the average length of the day in May in California?
In May, the average day length in California is 12h and 37min.
When are sunrise and sunset in May in California?
On the first day of May in California, sunrise is at 05:47 and sunset at 18:18. On the last day of the month, sunrise is at 05:42 and sunset at 18:24 AST.
How long on average sun shines in May in California?
The average sunshine duration in May in California, Trinidad and Tobago, is 10.3h.
What is the month with the highest UV index in California?
January through December, with an average maximum UV index of 7, are months with the highest UV index in California, Trinidad and Tobago.
What are the months with the lowest UV index in California?
January through December, with an average maximum UV index of 7, are months with the lowest UV index.
What is the UV index intensity in May in California?
In California, Trinidad and Tobago, the average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - California, Trinidad and Tobago
Average temperature in May
California, Trinidad and Tobago
  • Average high temperature in May: 29.8°C

The warmest month (with the highest average high temperature) is September (30.5°C).
The month with the lowest average high temperature is January (28.2°C).

  • Average low temperature in May: 26.2°C

The months with the highest average low temperature are September and October (26.5°C).
The coldest month (with the lowest average low temperature) is February (24.7°C).

Average pressure in May - California, Trinidad and Tobago
Average pressure in May
California, Trinidad and Tobago
  • Average pressure in May: 1013mbar

The month with the highest atmospheric pressure is June (1013.7mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).

Average wind speed in May - California, Trinidad and Tobago
Average wind speed in May
California, Trinidad and Tobago
  • Average wind speed in May: 17km/h

The windiest month (with the highest average wind speed) is May (17km/h).
The calmest month (with the lowest average wind speed) is August (12.6km/h).

Average humidity in May - California, Trinidad and Tobago
Average humidity in May
California, Trinidad and Tobago
  • Average humidity in May: 75%

The months with the highest relative humidity are July, November and December (78%).
The months with the lowest relative humidity are March and April (74%).

Average rainfall in May - California, Trinidad and Tobago
Average rainfall in May
California, Trinidad and Tobago
  • Average rainfall in May: 20mm

The wettest month (with the highest rainfall) is August (97mm).
The driest month (with the least rainfall) is April (17mm).

Average rainfall days in May - California, Trinidad and Tobago
Average rainfall days in May
California, Trinidad and Tobago
  • Average rainfall days in May: 13 days

The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is April (11.6 days).

Average daylight in May / Average sunshine in May - California, Trinidad and Tobago
Average daylight in May /
Average sunshine in May
California, Trinidad and Tobago
  • Average daylight in May: 12h and 4min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in May: 10h and 2min

The months with the most sunshine are August and September (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in May - California, Trinidad and Tobago
Average sunshine days in May
California, Trinidad and Tobago
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is April (14.3 days).
The month with the least sunshine days is July (5.6 days).

Average UV index in May - California, Trinidad and Tobago
Average UV index in May
California, Trinidad and Tobago
  • Average UV index in May: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in May - California, Trinidad and Tobago
Average cloud cover in May
California, Trinidad and Tobago
  • Average cloud cover in May: 39

The month with the most cloud cover is June (Cloud cover 42).
The month with the least cloud cover is September (Cloud cover 27).

Average visibility in May - California, Trinidad and Tobago
Average visibility in May
California, Trinidad and Tobago
  • Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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