Coupeville Weather in May
Average highs run from 60°F on May 1 to 63°F on May 31, and lows from 44°F to 49°F. Normal precipitation for the month is 1.73 in over about 9 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 62°F
- Average low
- 47°F
- Precipitation
- 1.73 in
- Record high
- 86°FMay 12, 1926
- Record low
- 28°FMay 1, 1954
- Chance of a freeze
- 0%
- Daylight
- 14 h 33 min to 15 h 47 min
- Cloud cover
- 68%
- Humidity
- 79%
- Dew point
- 47°F
- Wind
- 3.4 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| May 1 | 60°F | 44°F | 76°F 2014 | 28°F 1954 | 33% | 0% |
| May 2 | 60°F | 44°F | 85°F 2016 | 33°F 1899 | 33% | 0% |
| May 3 | 60°F | 44°F | 81°F 1898 | 35°F 1950 | 32% | 0% |
| May 4 | 60°F | 45°F | 79°F 1898 | 34°F 1955 | 32% | 0% |
| May 5 | 60°F | 45°F | 75°F 1966 | 33°F 1949 | 32% | 0% |
| May 6 | 61°F | 45°F | 75°F 1957 | 35°F 1926 | 31% | 0% |
| May 7 | 61°F | 45°F | 73°F 1994 | 32°F 1962 | 31% | 0% |
| May 8 | 61°F | 45°F | 78°F 2020 | 36°F 1975 | 31% | 0% |
| May 9 | 61°F | 46°F | 80°F 1975 | 33°F 1985 | 31% | 0% |
| May 10 | 61°F | 46°F | 83°F 1931 | 35°F 1929 | 31% | 0% |
| May 11 | 61°F | 46°F | 79°F 1971 | 33°F 1973 | 31% | 0% |
| May 12 | 61°F | 46°F | 86°F 1926 | 35°F 1977 | 31% | 0% |
| May 13 | 62°F | 46°F | 80°F 1898 | 34°F 1958 | 31% | 0% |
| May 14 | 62°F | 46°F | 82°F 1958 | 30°F 1964 | 31% | 0% |
| May 15 | 62°F | 47°F | 81°F 1958 | 32°F 1964 | 31% | 0% |
| May 16 | 62°F | 47°F | 76°F 1958 | 35°F 1938 | 31% | 0% |
| May 17 | 62°F | 47°F | 82°F 2008 | 31°F 1964 | 31% | 0% |
| May 18 | 62°F | 47°F | 85°F 1958 | 35°F 1971 | 31% | 0% |
| May 19 | 62°F | 47°F | 83°F 1961 | 35°F 1933 | 31% | 0% |
| May 20 | 62°F | 47°F | 84°F 1963 | 37°F 1931 | 31% | 0% |
| May 21 | 62°F | 48°F | 85°F 1963 | 35°F 1973 | 31% | 0% |
| May 22 | 63°F | 48°F | 82°F 1958 | 38°F 1955 | 31% | 0% |
| May 23 | 63°F | 48°F | 81°F 1969 | 35°F 1950 | 31% | 0% |
| May 24 | 63°F | 48°F | 80°F 1958 | 36°F 1965 | 31% | 0% |
| May 25 | 63°F | 48°F | 83°F 1898 | 33°F 1964 | 31% | 0% |
| May 26 | 63°F | 48°F | 85°F 2005 | 34°F 1964 | 31% | 0% |
| May 27 | 63°F | 48°F | 85°F 2005 | 34°F 1973 | 31% | 0% |
| May 28 | 63°F | 49°F | 81°F 1983 | 36°F 1973 | 31% | 0% |
| May 29 | 63°F | 49°F | 83°F 1983 | 37°F 1951 | 31% | 0% |
| May 30 | 63°F | 49°F | 82°F 1907 | 37°F 1946 | 31% | 0% |
| May 31 | 63°F | 49°F | 79°F 1986 | 36°F 1928 | 31% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 5:52 AM, sunset 8:25 PM
- May 31
- sunrise 5:15 AM, sunset 9:02 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00451783 (Coupeville 1 S), public domain. Records: NOAA GHCN-Daily, station USC00451783, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.