The highest day temperature in May 2026 was 90°F. The lowest night temperature was 80°F. The average values for day and night temperatures during May were 88.5°F и 83.2°F respectivly.

The average sea surface temperature in May 2026 for Santa Maria was 87.1°F. The maximum and minimum values were 85.0°F and 88.8°F respectively.

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation total in May for Santa Maria is 3.3 in. It makes may one of the most rainy months of the year.

The average wind speed in May is 13.1 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Santa Maria in May is 8.4 hours.