Climate of Ketchikan
Ketchikan has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Ketchikan is 9° degrees and there is about 1603 mm of rain in a year. It is dry for 116 days a year with an average humidity of 85% and an UV-index of 2.
Climate averages for the whole year
- Day: the average daily temperature during the day is between 2°C and 16°C
- Night:the average nighttime temperature is between -1°C and 11°C
- Sea temperature: the sea temperature is between 7°C and 16°C
- Rain: it rains 216 days and there is a total of approximately 1603 mm rainfall
- Snow: it snows an average of 41 days per year
- Sun hours: throughout the year there are 1949 sun hours
Maximum temperature: | between 2°C and 16°C |
Warmest month: | 16°C in July |
Coldest month: | 2°C in December |
Night temperature: | between -1°C and 11°C |
Sea temperature: | between 7°C and 16°C |
Dry days: | 108 days |
Days with rain: | 216 days |
Days with snow: | 41 days |
Total rain sum: | 1603 mm |
Hours of sunshine: | 1949 hours |
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Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for Ketchikan.
Precipitation graph
This graph shows the average amount of rainfall per month for Ketchikan.
Climate table of Ketchikan
In this climate table you can see at a glance what the average weather per month is for Ketchikan. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Ketchikan might be like in a given month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Day temp. (°C) | 3 | 3 | 5 | 8 | 11 | 14 | 16 | 16 | 13 | 9 | 5 | 2 |
Night temp. (°C) | 0 | -1 | 1 | 3 | 6 | 9 | 11 | 11 | 9 | 6 | 2 | 0 |
Water temp. (°C) | 8 | 7 | 7 | 9 | 11 | 15 | 15 | 16 | 13 | 11 | 10 | 9 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Precipitation (mm) | 216 | 117 | 136 | 105 | 84 | 72 | 75 | 102 | 156 | 183 | 190 | 167 |
Days with rain | 20 | 13 | 16 | 21 | 17 | 18 | 16 | 17 | 19 | 20 | 21 | 18 |
Days with snow | 7 | 7 | 11 | 3 | - | - | - | - | - | - | 5 | 8 |
Dry days | 4 | 8 | 4 | 6 | 14 | 12 | 15 | 14 | 11 | 11 | 4 | 5 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Sun hours per day | 3 | 4 | 5 | 6 | 7 | 7 | 7 | 7 | 6 | 4 | 3 | 4 |
Wind force (Bft) | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 |
UV-index | 1 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 3 | 2 | 1 | 1 |
Best time to visit Ketchikan
The best time to visit Ketchikan in the state of Alaska is in July and August. In this period you have a mild temperature and sometimes precipitation. The highest average temperature in Ketchikan is 16°C in July and the lowest is 2°C in December. The maximum water temperature is 16°C and the lowest water temperature is 7°C.
Climate of Ketchikan by month
What is the average climate in a given month for Ketchikan? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.
Ketchikan weather experiences
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