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Ratnapura Climate Guide
Sri Lanka
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Maximum Daytime Temperature (°C)
Minimum Night-time Temperature (°C)
29
29 °C (84°F) Maximum Daytime Temperature in January
30
30 °C (86°F) Maximum Daytime Temperature in February
31
31 °C (88°F) Maximum Daytime Temperature in March
31
31 °C (88°F) Maximum Daytime Temperature in April
29
29 °C (84°F) Maximum Daytime Temperature in May
28
28 °C (82°F) Maximum Daytime Temperature in June
28
28 °C (82°F) Maximum Daytime Temperature in July
28
28 °C (82°F) Maximum Daytime Temperature in August
28
28 °C (82°F) Maximum Daytime Temperature in September
29
29 °C (84°F) Maximum Daytime Temperature in October
29
29 °C (84°F) Maximum Daytime Temperature in November
28
28 °C (82°F) Maximum Daytime Temperature in December
J F M A M J J A S O N D
20
20 °C (68°F) Minimum Night-time Temperature in January
20
20 °C (68°F) Minimum Night-time Temperature in February
21
21 °C (70°F) Minimum Night-time Temperature in March
22
22 °C (72°F) Minimum Night-time Temperature in April
23
23 °C (73°F) Minimum Night-time Temperature in May
23
23 °C (73°F) Minimum Night-time Temperature in June
23
23 °C (73°F) Minimum Night-time Temperature in July
22
22 °C (72°F) Minimum Night-time Temperature in August
22
22 °C (72°F) Minimum Night-time Temperature in September
22
22 °C (72°F) Minimum Night-time Temperature in October
21
21 °C (70°F) Minimum Night-time Temperature in November
20
20 °C (68°F) Minimum Night-time Temperature in December
J F M A M J J A S O N D
Hours of Sunshine
Hours of Daylight
7
7 Hours of Sunshine (61% of Daylight Hours) in January
8
8 Hours of Sunshine (66% of Daylight Hours) in February
8
8 Hours of Sunshine (69% of Daylight Hours) in March
7
7 Hours of Sunshine (60% of Daylight Hours) in April
6
6 Hours of Sunshine (48% of Daylight Hours) in May
6
6 Hours of Sunshine (47% of Daylight Hours) in June
6
6 Hours of Sunshine (46% of Daylight Hours) in July
6
6 Hours of Sunshine (47% of Daylight Hours) in August
6
6 Hours of Sunshine (47% of Daylight Hours) in September
6
6 Hours of Sunshine (50% of Daylight Hours) in October
6
6 Hours of Sunshine (53% of Daylight Hours) in November
6
6 Hours of Sunshine (53% of Daylight Hours) in December
J F M A M J J A S O N D
12
12 Hours of Daylight in January
12
12 Hours of Daylight in February
12
12 Hours of Daylight in March
12
12 Hours of Daylight in April
12
12 Hours of Daylight in May
13
13 Hours of Daylight in June
13
13 Hours of Daylight in July
12
12 Hours of Daylight in August
12
12 Hours of Daylight in September
12
12 Hours of Daylight in October
12
12 Hours of Daylight in November
12
12 Hours of Daylight in December
J F M A M J J A S O N D
Days with some Rain
Monthly Rainfall (mm)
5
5 Days with some Rain in January
5
5 Days with some Rain in February
8
8 Days with some Rain in March
13
13 Days with some Rain in April
13
13 Days with some Rain in May
15
15 Days with some Rain in June
11
11 Days with some Rain in July
11
11 Days with some Rain in August
14
14 Days with some Rain in September
16
16 Days with some Rain in October
15
15 Days with some Rain in November
11
11 Days with some Rain in December
J F M A M J J A S O N D
97
97 mm (3.8 inches) Monthly Rainfall in January
112
112 mm (4.4 inches) Monthly Rainfall in February
147
147 mm (5.8 inches) Monthly Rainfall in March
271
271 mm (10.7 inches) Monthly Rainfall in April
319
319 mm (12.6 inches) Monthly Rainfall in May
258
258 mm (10.2 inches) Monthly Rainfall in June
205
205 mm (8.1 inches) Monthly Rainfall in July
191
191 mm (7.5 inches) Monthly Rainfall in August
264
264 mm (10.4 inches) Monthly Rainfall in September
357
357 mm (14.1 inches) Monthly Rainfall in October
308
308 mm (12.1 inches) Monthly Rainfall in November
198
198 mm (7.8 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)
M
Moderate Heat & Humidity in January
H
High Heat & Humidity in February
H
High Heat & Humidity in March
H
High Heat & Humidity in April
H
High Heat & Humidity in May
M
Moderate Heat & Humidity in June
M
Moderate Heat & Humidity in July
M
Moderate Heat & Humidity in August
M
Moderate Heat & Humidity in September
M
Moderate Heat & Humidity in October
M
Moderate Heat & Humidity in November
M
Moderate Heat & Humidity in December
J F M A M J J A S O N D
11
UV 11+ (Extreme) in January
11
UV 11+ (Extreme) in February
11
UV 11+ (Extreme) in March
11
UV 11+ (Extreme) in April
11
UV 11+ (Extreme) in May
11
UV 11+ (Extreme) in June
11
UV 11+ (Extreme) in July
11
UV 11+ (Extreme) in August
11
UV 11+ (Extreme) in September
11
UV 11+ (Extreme) in October
11
UV 11 (Extreme) in November
11
UV 11 (Extreme) in December
J F M A M J J A S O N D
Sea Temperature (°C)
Ratnapura Climate Guide (Historical Weather Averages), Sri Lanka
Elev: 100 m   Long: 080°23'E   Lat: 06°41'N
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