Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The transition from April to May brings a subtle temperature rise, with average high-temperatures increasing from a wintry 39.4°F (4.1°C) to a chilly 48°F (8.9°C). In Gustavus, May is characterized by an average low-temperature of 39.9°F (4.4°C), indicating a minor drop from daytime highs.Humidity
In Gustavus, the average relative humidity in May is 85%.Rainfall
May is the month with the least rainfall. Rain falls for 15.3 days and accumulates 1.61" (41mm) of precipitation.Snowfall
In Gustavus, snow does not fall in May through September.Daylight
The average length of the day in May is 16h and 51min.On the first day of the month, sunrise is at 5:05 am and sunset at 8:54 pm. On the last day of May, sunrise is at 4:06 am and sunset at 9:55 pm AKDT.
Sunshine
In May, the average sunshine is 7.1h.UV index
The average daily maximum UV index in May is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 3 during May morphs into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
What is the driest month?
How many days does it rain in May?
When it does not snow?
Does it snow in Gustavus in May?
How many hours of daylight does Gustavus have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Gustavus have in May?
What is the UV index intensity in May in Gustavus?
Average temperature in May
Gustavus, AK
- Average high temperature in May: 48°F
The warmest month (with the highest average high temperature) is July (57.2°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in May: 39.9°F
The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is February (25.9°F).
Average pressure in May
Gustavus, AK
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is July (30.03"Hg).
The month with the lowest atmospheric pressure is November (29.77"Hg).
Average wind speed in May
Gustavus, AK
- Average wind speed in May: 3.9mph
The windiest month (with the highest average wind speed) is January (7mph).
The calmest months (with the lowest average wind speed) are June and July (3.7mph).
Average humidity in May
Gustavus, AK
- Average humidity in May: 85%
The month with the highest relative humidity is August (90%).
The month with the lowest relative humidity is November (84%).
Average rainfall in May
Gustavus, AK
- Average rainfall in May: 1.61"
The wettest months (with the highest rainfall) are October and November (4.21").
The driest month (with the least rainfall) is May (1.61").
Average rainfall days in May
Gustavus, AK
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in May
Gustavus, AK
- Average snowfall in May: 0"
The month with the highest snowfall is January (11.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Gustavus, AK
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is March (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Gustavus, AK
- Average daylight in May: 16h and 5min
The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in May: 7h and 1min
The month with the most sunshine is June (Average sunshine: 7h and 42min).
The months with the least sunshine are January and December (Average sunshine: 2h and 54min).
Average sunshine days in May
Gustavus, AK
- Average sunshine days in May: 12.5 days
The months with the most sunshine days are February and May (12.5 days).
The month with the least sunshine days is June (7.7 days).
Average UV index in May
Gustavus, AK
- Average UV index in May: 3
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in May
Gustavus, AK
- Average cloud cover in May: 56
The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is May (Cloud cover 56).
Average visibility in May
Gustavus, AK
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
The months with the lowest visibility are July and August (4mi).
Gustavus, Alaska, USA
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