May weather forecast
Port Orchard, WA

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Weather in May

May, the last month of the spring in Port Orchard, is a comfortable month, with an average temperature varying between 65.1°F (18.4°C) and 45°F (7.2°C).

Temperature

May witnesses a minor rise in the average high-temperature, transitioning from a mild 56.7°F (13.7°C) in April to a still refreshing 65.1°F (18.4°C). The nights of May anticipate an average low-temperature of 45°F (7.2°C).

Humidity

In May, the average relative humidity is 75%.

Rainfall

In Port Orchard, during May, the rain falls for 11.8 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, there are 138.9 rainfall days, and 12.24" (311mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Port Orchard, Washington.

Ocean temperature

In May, the average ocean temperature in Port Orchard is 46.6°F (8.1°C).
Note: Swimming in 46.6°F (8.1°C) is deemed hazardous. Exposure to temperatures below 50°F (10°C) leads to immediate severe cold shock and hyperventilation.

Daylight

In May, the average length of the day in Port Orchard is 15h and 9min.
On the first day of the month, sunrise is at 5:51 am and sunset at 8:23 pm. On the last day of May, in Port Orchard, sunrise is at 5:17 am and sunset at 8:59 pm PDT.

Sunshine

In May, the average sunshine in Port Orchard, Washington, is 9.2h.

UV index

In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In May, the maximum UV index of 4 suggests these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What are May temperatures in Port Orchard?

The high-temperature, in May, in Port Orchard, is 65.1°F (18.4°C), while the low-temperature averages to 45°F (7.2°C).

What is the average humidity in May in Port Orchard?

In May, the average relative humidity in Port Orchard is 75%.

How many days does it rain in May in Port Orchard?

In Port Orchard, during May, the rain falls for 11.8 days and regularly aggregates up to 0.83" (21mm) of precipitation.

When it does not snow in Port Orchard?

In Port Orchard, Washington, snow does not fall in April through October.

How cold is the water in May in Port Orchard?

In Port Orchard, Washington, in May, the average water temperature is 46.6°F (8.1°C). Swimming in 46.6°F (8.1°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 Port Orchard have in May?

In May, the average day length is 15h and 9min.

When is the sunrise / sunset in May in Port Orchard?

In May, on the first day of the month, sunrise is at 5:51 am and sunset at 8:23 pm. On the last day of the month, in Port Orchard, sunrise is at 5:17 am and sunset at 8:59 pm PDT.

How many hours of sunshine does Port Orchard have in May?

In Port Orchard, Washington, the average sunshine duration in May is 9.2h.

What is the UV index reading in May in Port Orchard?

The average daily maximum UV index in May in Port Orchard, Washington, is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMayJJASOND
Apr
May
Jun
Average high temperature
56.7°F 13.7°C
65.1°F 18.4°C
69.4°F 20.8°C
Average low temperature
39.9°F 4.4°C
45°F 7.2°C
48.4°F 9.1°C
Average pressure
30.05" 763mmHg
30.03" 763mmHg
30.03" 763mmHg
Average wind speed
5mph 8km/h
4.2mph 6.8km/h
4mph 6.4km/h
Average max. wind speed
5.5mph 8.9km/h
4.6mph 7.4km/h
4.5mph 7.2km/h
Average wind speed gusts
7.7mph 12.4km/h
6.4mph 10.3km/h
6mph 9.7km/h
Average humidity
79%
75%
74%
Average rainfall
0.79" 20mm
0.83" 21mm
0.51" 13mm
Average rainfall days
13.3
11.8
9.7
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0.1
0
0
Average sea temperature
45.8°F 7.7°C
46.6°F 8.1°C
47.6°F 8.7°C
Average daylight
13h 4min
15h 1min
15h 5min
Average sunshine
8h 1min
9h 1min
9h 3min
Average sunshine days
13.8
16.4
17.3
Average UV index
4
4
5
Average cloud cover
50%
42%
42%
Average visibility
5mi 8km
6mi 9.7km
6mi 9.7km

Average temperature in May
Port Orchard, WA

Average temperature in May - Port Orchard, WA
  • Average high temperature in May: 65.1°F

The warmest month (with the highest average high temperature) is August (77.2°F).
The month with the lowest average high temperature is December (43.2°F).

  • Average low temperature in May: 45°F

The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.9°F).

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Average pressure in May
Port Orchard, WA

Average pressure in May - Port Orchard, WA
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

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Average wind speed in May
Port Orchard, WA

Average wind speed in May - Port Orchard, WA
  • Average wind speed in May: 4.2mph

The windiest month (with the highest average wind speed) is March (5.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).

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Average humidity in May
Port Orchard, WA

Average humidity in May - Port Orchard, WA
  • Average humidity in May: 75%

The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in May
Port Orchard, WA

Average rainfall in May - Port Orchard, WA
  • Average rainfall in May: 0.83"

The wettest months (with the highest rainfall) are January and December (2.05").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in May
Port Orchard, WA

Average rainfall days in May - Port Orchard, WA
  • Average rainfall days in May: 11.8 days

The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (5.4 days).

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Average snowfall in May
Port Orchard, WA

Average snowfall in May - Port Orchard, WA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Port Orchard, WA

Average snowfall days in May - Port Orchard, WA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in May
Port Orchard, WA

Average sea temperature in May - Port Orchard, WA
  • Average sea temperature in May: 46.6°F

The best month for swimming (with the highest average sea temperature) is August (53.2°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).

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Average daylight in May /
Average sunshine in May
Port Orchard, WA

Average daylight in May / Average sunshine in May - Port Orchard, WA
  • Average daylight in May: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).

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Average sunshine days in May
Port Orchard, WA

Average sunshine days in May - Port Orchard, WA
  • Average sunshine days in May: 16.4 days

The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (11.8 days).

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Average UV index in May
Port Orchard, WA

Average UV index in May - Port Orchard, WA
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Port Orchard, WA

Average cloud cover in May - Port Orchard, WA
  • Average cloud cover in May: 42

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in May
Port Orchard, WA

Average visibility in May - Port Orchard, WA
  • Average visibility in May: 6mi

The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).

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Port Orchard, Washington, USA

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