Juneau Weather in May

May in Juneau averages 10°C (50°F) during the day and 3°C (37°F) at night. Quite a bit of rainfall is typical this month, with around 143 mm (5.6 in) on average. An umbrella is a good idea.

Rainfall in Juneau in May

Climate statistics over the past 30 years suggest around 15 days of rain, with 143 mm (5.6 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Juneau in May

Daytime highs in Juneau in May reach 10°C (50°F), with nights around 3°C (37°F). Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Juneau in May

There are approximately 230 hours of sunshine this month, resulting in mostly clear days. Despite the cool temperatures, the sunshine makes it an enjoyable time to be outside.

Wind Speed in Juneau in May

In May, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

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