May weather forecastAptos, CA
May
Weather in May
The last month of the spring, May, is also an enjoyable month in Aptos, California, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 64.9°F (18.3°C).Temperature
The advent of May observes an average high-temperature of a still comfortable 64.9°F (18.3°C), nearly identical to April's 63.1°F (17.3°C). Aptos's temperature drops to an average low of 49.1°F (9.5°C) during the nights of May.Humidity
The average relative humidity in May is 74%.Rainfall
In May, in Aptos, the rain falls for 6.5 days. Throughout May, 0.67" (17mm) of precipitation is accumulated. Throughout the year, in Aptos, there are 77.9 rainfall days, and 14.45" (367mm) of precipitation is accumulated.Daylight
In May, the average length of the day is 14h and 10min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:21 pm PDT.
Sunshine
The average sunshine in May is 10.3h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 4 in May transforms into the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Aptos, CA
- Average high temperature in May: 64.9°F
The warmest months (with the highest average high temperature) are August and September (73°F).
The month with the lowest average high temperature is December (57.2°F).
- Average low temperature in May: 49.1°F
The month with the highest average low temperature is September (55.2°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).
Average pressure in May
Aptos, CA
- Average pressure in May: 29.99"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 May
Aptos, CA
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in May
Aptos, CA
- Average humidity in May: 74%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
Aptos, CA
- Average rainfall in May: 0.67"
The wettest month (with the highest rainfall) is December (2.8").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Aptos, CA
- Average rainfall days in May: 6.5 days
The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (1.2 days).
Average daylight in May /
Average sunshine in May
Aptos, CA
- Average daylight in May: 14h and 12min
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 42min).
- Average sunshine in May: 10h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in May
Aptos, CA
- Average sunshine days in May: 22.1 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (16.4 days).
Average UV index in May
Aptos, CA
- Average UV index in May: 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 and November (UV index 3).
Average cloud cover in May
Aptos, CA
- Average cloud cover in May: 30
The month with the most cloud cover is March (Cloud cover 38).
The months with the least cloud cover are July and September (Cloud cover 15).
Average visibility in May
Aptos, 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).





