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St. Moritz Climate Guide
Switzerland
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Maximum Daytime Temperature (°C)
Minimum Night-time Temperature (°C)
0
0 °C (32°F) Maximum Daytime Temperature in April
5
5 °C (41°F) Maximum Daytime Temperature in May
8
8 °C (46°F) Maximum Daytime Temperature in June
11
11 °C (52°F) Maximum Daytime Temperature in July
10
10 °C (50°F) Maximum Daytime Temperature in August
8
8 °C (46°F) Maximum Daytime Temperature in September
5
5 °C (41°F) Maximum Daytime Temperature in October
0
-0 °C (32°F) Maximum Daytime Temperature in November
J F M A M J J A S O N D
2
2 °C (36°F) Minimum Night-time Temperature in June
4
4 °C (39°F) Minimum Night-time Temperature in July
4
4 °C (39°F) Minimum Night-time Temperature in August
3
3 °C (37°F) Minimum Night-time Temperature in September
0
-0 °C (32°F) Minimum Night-time Temperature in October
J F M A M J J A S O N D
-4 °C (25°F) Maximum Daytime Temperature in January
-4
-4 °C (25°F) Maximum Daytime Temperature in February
-4
-3 °C (27°F) Maximum Daytime Temperature in March
-3
-3 °C (27°F) Maximum Daytime Temperature in December
-3
-10 °C (14°F) Minimum Night-time Temperature in January
-10
-9 °C (16°F) Minimum Night-time Temperature in February
-9
-8 °C (18°F) Minimum Night-time Temperature in March
-8
-5 °C (23°F) Minimum Night-time Temperature in April
-5
-1 °C (30°F) Minimum Night-time Temperature in May
-1
-5 °C (23°F) Minimum Night-time Temperature in November
-5
-8 °C (18°F) Minimum Night-time Temperature in December
-8
Hours of Sunshine
Hours of Daylight
4
4 Hours of Sunshine (43% of Daylight Hours) in January
5
5 Hours of Sunshine (46% of Daylight Hours) in February
5
5 Hours of Sunshine (41% of Daylight Hours) in March
5
5 Hours of Sunshine (36% of Daylight Hours) in April
5
5 Hours of Sunshine (35% of Daylight Hours) in May
5
5 Hours of Sunshine (34% of Daylight Hours) in June
6
6 Hours of Sunshine (40% of Daylight Hours) in July
6
6 Hours of Sunshine (42% of Daylight Hours) in August
6
6 Hours of Sunshine (48% of Daylight Hours) in September
6
6 Hours of Sunshine (53% of Daylight Hours) in October
4
4 Hours of Sunshine (45% of Daylight Hours) in November
4
4 Hours of Sunshine (44% of Daylight Hours) in December
J F M A M J J A S O N D
9
9 Hours of Daylight in January
10
10 Hours of Daylight in February
12
12 Hours of Daylight in March
14
14 Hours of Daylight in April
15
15 Hours of Daylight in May
16
16 Hours of Daylight in June
15
15 Hours of Daylight in July
14
14 Hours of Daylight in August
12
12 Hours of Daylight in September
11
11 Hours of Daylight in October
9
9 Hours of Daylight in November
9
9 Hours of Daylight in December
J F M A M J J A S O N D
Days with some Rain
Monthly Rainfall (mm)
16
16 Days with some Rain in January
15
15 Days with some Rain in February
17
17 Days with some Rain in March
19
19 Days with some Rain in April
19
19 Days with some Rain in May
19
19 Days with some Rain in June
18
18 Days with some Rain in July
19
19 Days with some Rain in August
14
14 Days with some Rain in September
13
13 Days with some Rain in October
15
15 Days with some Rain in November
16
16 Days with some Rain in December
J F M A M J J A S O N D
93
93 mm (3.7 inches) Monthly Rainfall in January
80
80 mm (3.1 inches) Monthly Rainfall in February
92
92 mm (3.6 inches) Monthly Rainfall in March
104
104 mm (4.1 inches) Monthly Rainfall in April
121
121 mm (4.8 inches) Monthly Rainfall in May
136
136 mm (5.4 inches) Monthly Rainfall in June
144
144 mm (5.7 inches) Monthly Rainfall in July
152
152 mm (6.0 inches) Monthly Rainfall in August
117
117 mm (4.6 inches) Monthly Rainfall in September
92
92 mm (3.6 inches) Monthly Rainfall in October
112
112 mm (4.4 inches) Monthly Rainfall in November
93
93 mm (3.7 inches) Monthly Rainfall in December
J F M A M J J A S O N D
Heat & Humidity / Chance of Frost
UV Index (Maximum)
29
29 Days with Frost in January
26
26 Days with Frost in February
27
27 Days with Frost in March
24
24 Days with Frost in April
19
19 Days with Frost in May
14
14 Days with Frost in June
11
11 Days with Frost in July
11
11 Days with Frost in August
13
13 Days with Frost in September
18
18 Days with Frost in October
25
25 Days with Frost in November
29
29 Days with Frost in December
J F M A M J J A S O N D
1
UV 1 (Low) in January
2
UV 2 (Low) in February
4
UV 4 (Moderate) in March
5
UV 5 (Moderate) in April
7
UV 7 (High) in May
8
UV 8 (Very High) in June
8
UV 8 (Very High) in July
7
UV 7 (High) in August
5
UV 5 (Moderate) in September
3
UV 3 (Moderate) in October
2
UV 2 (Low) in November
1
UV 1 (Low) in December
J F M A M J J A S O N D
Sea Temperature (°C)
St. Moritz Climate Guide (Historical Weather Averages), Switzerland
Elev: 1,900 m   Long: 009°50'E   Lat: 46°30'N
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