Climate Insights for Chatham Seaplane Base

Sitka City and Borough, Alaska, United States

Based on 10 years of historical weather data

Current Season

What season is it in Chatham Seaplane Base?

Astronomical Season

winter

Based on Earth's position relative to the sun

Meteorological Season

winter

Based on temperature cycles and weather patterns

spring begins on March 20, 2026 (58 days from now)

Season Timeline for 2026

spring
Mar 20
Next
summer
Jun 21
Future
fall
Sep 23
Future
winter
Dec 21
Current

Hottest Month

July
Peak: 18°C
Average: 15°C

Coldest Month

February
Low: -3°C
Average: 0°C

Wettest Month

January
244 mm rain
62 mm snow

Best Time to Visit

Climate varies throughout the year
Monthly Climate Data
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan Current
-1 °C
3 °C
14 km/h
244 mm
62 cm
Feb
-3 °C
3 °C
14 km/h
152 mm
63 cm
Mar
-1 °C
5 °C
14 km/h
133 mm
54 cm
Apr
2 °C
9 °C
14 km/h
148 mm
25 cm
May
6 °C
14 °C
13 km/h
121 mm
1 cm
Jun
10 °C
17 °C
12 km/h
105 mm
0 cm
Jul
12 °C
18 °C
11 km/h
119 mm
0 cm
Aug
12 °C
18 °C
12 km/h
150 mm
0 cm
Sep
9 °C
14 °C
13 km/h
220 mm
0 cm
Oct
5 °C
9 °C
14 km/h
224 mm
6 cm
Nov
1 °C
5 °C
15 km/h
222 mm
50 cm
Dec
-1 °C
3 °C
14 km/h
224 mm
71 cm
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Metric (°C, km/h)
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