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Contents
- The climate of Negombo
- The best time to visit Negombo
- The worst time to visit Negombo
- Spring weather in Negombo
- Summer weather in Negombo
- Autumn weather in Negombo
- Winter weather in Negombo
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
The climate of Negombo
Located in the tropical zone, Negombo's climate predominantly falls under the Köppen climate classification of Af, known as a tropical rainforest climate. This classification represents regions where high temperatures and a significant amount of rainfall are recorded throughout the year. A bedtime examination of the provided dataset reinforces this classification and brings to light further features of Negombo's weather.
Negombo experiences a consistent and high temperature range, with the lowest average monthly temperature being 22.8°C (73°F) and the highest average monthly temperature peaking at 32.1°C (89.8°F). Rainfall, too, is frequent, with each month receiving not less than 29mm (1.14") of rain. Relative humidity sticks to the higher side of the percentage scale, falling within 73% - 82%.
The number of days with rainfall each month ranges between 9.7 to 28.4, indicating that rain is a common occurrence. Contrasting this, the hours of sunshine recorded each day dances around the 7-9 hours mark, regardless of the month, with the sunniest months featuring approximately 9.2 hours of daily sunshine. The slightly exceptional feature here is the sea temperature, varying between 27°C (80.6°F) to 29.7°C (85.5°F), offering a warm, tropical swimming experience all year round.
Negombo experiences a consistent and high temperature range, with the lowest average monthly temperature being 22.8°C (73°F) and the highest average monthly temperature peaking at 32.1°C (89.8°F). Rainfall, too, is frequent, with each month receiving not less than 29mm (1.14") of rain. Relative humidity sticks to the higher side of the percentage scale, falling within 73% - 82%.
The number of days with rainfall each month ranges between 9.7 to 28.4, indicating that rain is a common occurrence. Contrasting this, the hours of sunshine recorded each day dances around the 7-9 hours mark, regardless of the month, with the sunniest months featuring approximately 9.2 hours of daily sunshine. The slightly exceptional feature here is the sea temperature, varying between 27°C (80.6°F) to 29.7°C (85.5°F), offering a warm, tropical swimming experience all year round.
The best time to visit Negombo
Although Negombo hosts a welcoming climate throughout the year, the months from December to April present the most favourable conditions for tourists. During this period, the city experiences slightly lesser rainfall, with December recording the least at 29mm (1.14") of rain. The city also exhibits maximum hours of sunshine during these months, offering a pleasing environment for sightseeing and outdoor activities.
The worst time to visit Negombo
The months from May to November are characterized by significantly heavier rainfall due to the monsoon season. The precipitation peaks in June, with about 231mm (9.09") of rainfall. The intensity of the rain during these months can hinder outdoor activities and sightseeing. Hence, it might not be the best time to visit for tourists seeking to explore the city extensively.
Spring weather in Negombo
In Negombo, the months of March to May are the spring months. This period begins with a moderate amount of rainfall, which rapidly increases to reach its peak in May with about 204mm (8.03"). The temperature, too, climbs during these months, reaching 32°C (89.6°F) in May.
Summer weather in Negombo
Summers in Negombo, from June to August, witness the heaviest rainfall with June receiving the highest precipitation of 231mm (9.09"). Temperatures stay fairly consistent during these months, with the average highs hovering around 29.2°C (84.6°F) to 30.8°C (87.4°F). Humidity also remains on the higher side during these months.
Autumn weather in Negombo
Autumn, from September through November, ushers in a downward trend in rainfall, but it still remains quite substantial, scarcely going below 153mm (6.02"). Temperatures also start to slightly descend with 29.5°C (85.1°F) being the high in September moving down to 29.2°C (84.6°F) in November.
Winter weather in Negombo
Winters, from December through February, grant the city a bit of respite from the demanding rainfall. However, they come with their share of humidity, lingering above 79%. The temperature doesn't plummet drastically, remaining rather snug between 22.8°C (73°F) to 31.7°C (89.1°F). Sea temperatures, too, hold a steady warmth, staying around the 28°C (82.4°F) mark, an inviting proposition for swimming enthusiasts.
Weather in January
January in Negombo, Sri Lanka, features warm temperatures that create a pleasant atmosphere. Although it is colder than the following month, it still brings about favorable conditions for outdoor activities. It has a stable sea temperature, ideal for beach activities. Weather in January »
Weather in February
The weather patterns shift subtly from January to February in Negombo, Sri Lanka. The temperature increases slightly, and with a gentle breeze, outdoor activities become more enjoyable. Negombo experiences more rainfall in February, which adds to the city's lush greenery. Weather in February »
Weather in March
Negombo's weather in March experiences significant changes compared to February. Rainfall increases noticeably, transitioning into the wet season, and the city's vegetation flourishes. Although the humidity escalates, it is offset by comfortable temperatures and refreshing coastal winds. Weather in March »
Weather in April
April brings more heat and humidity to Negombo, Sri Lanka, than March, signifying the height of the warmer season. With the rise in temperature, locals and tourists can enjoy various water-based activities due to the warm sea temperature. Weather in April »
Weather in May
May in Negombo, Sri Lanka, continues to display warm temperatures; however, an upward shift in rainfall can be observed. Despite the increase in rainfall, sunshine persists, enabling continuous outdoor activities. There is a slight elevation in wind speeds, which maintains a refreshing atmosphere amidst the higher temperature and relative humidity. Weather in May »
Weather in June
June signals the commencement of the rainy season in Negombo, Sri Lanka, with more rainfall compared to May. The temperatures drop slightly, taking into account the cloud cover increase. Even though sunshine hours drop, the daylight duration remains constant, ensuring tourists and locals have adequate time for daytime activities. Weather in June »
Weather in July
July's weather exhibits similar characteristics to June, with high rainfall and comfortable temperatures in Negombo, Sri Lanka. Visibility remains high, rendering it ideal for exploring the city's spectacular landscapes. July holds steady wind speeds, which provide relief from the slightly higher temperatures. Weather in July »
Weather in August
August's weather conditions display minor changes compared to July in Negombo, Sri Lanka. Slight ups and downs in temperature, wind speed, and humidity characterize this month. There is a very slight dip in daily sunshine hours, but sufficient daylight remains to explore the city's attractions. Weather in August »
Weather in September
September marks the transition towards the end of the rainy season in Negombo, Sri Lanka. Slight fluctuations in temperature and rainfall can be observed compared to August. The sea temperature starts to rise, making water activities more enjoyable. Weather in September »
Weather in October
October in Negombo, Sri Lanka, is known for its minor decrease in temperature compared to September. Sunny days become more prevalent, providing ample opportunities for sightseeing and outdoor activities. Constant rainfall ensures that Negombo's greenery continues to be vibrant and lush. Weather in October »
Weather in November
Negombo, Sri Lanka, in November, offers considerably stable weather conditions with slightly cooler temperatures than in October. Despite a reduction in rainfall, the landscape remains lush, enhancing the city's beauty. The sea temperature remains warm, appreciated by water activity enthusiasts. Weather in November »
Weather in December
December concludes the year in Negombo, Sri Lanka, with a further decrease in temperature compared to November. Less rainfall compared to the previous month marks the beginning of the dry season. While there is a discernible decrease in daily sunshine hours, there are still enough daylight hours for sightseeing. Weather in December »
Updated: Feb 6, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the least humid months in Negombo?
The months with the lowest humidity are January and February, with an average relative humidity of 73%.
What is the driest month in Negombo?
January is the month with the least rainfall. Rain falls for 9.7 days and accumulates 29mm (1.14") of precipitation.
How much does it rain in Negombo?
In Negombo, Sri Lanka, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.
What are the months with the most sunshine in Negombo?
The months with the most sunshine are January through April, with an average of 9.2h of sunshine.
What are the months with the highest UV index in Negombo?
The months with the highest UV index in Negombo, Sri Lanka, are January through April, July, September, November and December, with an average maximum UV index of 7.
What part of the year is the hottest in Negombo?
Negombo, Sri Lanka, reaches its average highest temperatures in March, measuring 32.1°C (89.8°F) at the peak and 24.5°C (76.1°F) at the lowest.
What is the month with the warmest sea water in Negombo?
With an average sea temperature of 29.7°C (85.5°F), April is the month with the warmest seawater.
What are the months with the lowest UV index in Negombo?
May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index.
What are the most humid months in Negombo?
June through August, with an average relative humidity of 82%, are most humid months in Negombo, Sri Lanka.
What is the wettest month in Negombo?
June is the month with the most rainfall. Rain falls for 27.6 days and accumulates 231mm (9.09") of precipitation.
When are the longest days in Negombo?
June has the longest days of the year in Negombo, with an average of 12h and 30min of daylight.
What are the coldest months in Negombo?
The coldest period in Negombo tends to be July, when average temperatures fluctuate between a high of 29.2°C (84.6°F) and a low of 25.5°C (77.9°F).
What month is the sea coldest in Negombo?
With an average sea temperature of 27°C (80.6°F), August is the month with the coldest seawater in Negombo, Sri Lanka.
What is the month with the least sunshine in Negombo?
November has the least sunshine of the year, with an average of 6.6h of sunshine.
What is the month with the shortest days in Negombo?
The month with the shortest days in Negombo, Sri Lanka, is December, with an average of 11h and 42min of daylight.
Is there Daylight Saving Time (DST) in Negombo?
Negombo does not utilize Daylight Saving Time (DST). +0530 timezone is used over the entire year.
Average temperature
Negombo, Sri Lanka
The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°C).
The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).
Average pressure
Negombo, Sri Lanka
- Average pressure in January:
1011.7mbar - Average pressure in February:
1011.3mbar - Average pressure in March:
1010.7mbar - Average pressure in April:
1009.6mbar - Average pressure in May:
1008.4mbar - Average pressure in June:
1008.4mbar
- Average pressure in July:
1008.5mbar - Average pressure in August:
1008.8mbar - Average pressure in September:
1009.6mbar - Average pressure in October:
1009.9mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1010.5mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The months with the lowest atmospheric pressure are May and June (1008.4mbar).
Average wind speed
Negombo, Sri Lanka
- Average wind speed in January:
16.2km/h - Average wind speed in February:
12.9km/h - Average wind speed in March:
9.1km/h - Average wind speed in April:
10km/h - Average wind speed in May:
15.5km/h - Average wind speed in June:
18.3km/h
- Average wind speed in July:
17.1km/h - Average wind speed in August:
17km/h - Average wind speed in September:
16km/h - Average wind speed in October:
11.8km/h - Average wind speed in November:
10.3km/h - Average wind speed in December:
14.1km/h
The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).
Average humidity
Negombo, Sri Lanka
The months with the highest relative humidity are June, July and August (82%).
The months with the lowest relative humidity are January and February (73%).
Average rainfall
Negombo, Sri Lanka
- Average rainfall in January:
29mm - Average rainfall in February:
36mm - Average rainfall in March:
55mm - Average rainfall in April:
112mm - Average rainfall in May:
204mm - Average rainfall in June:
231mm
- Average rainfall in July:
177mm - Average rainfall in August:
210mm - Average rainfall in September:
153mm - Average rainfall in October:
224mm - Average rainfall in November:
174mm - Average rainfall in December:
139mm
The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).
Average rainfall days
Negombo, Sri Lanka
- Average rainfall days in January:
9.7 days - Average rainfall days in February:
10.2 days - Average rainfall days in March:
18.2 days - Average rainfall days in April:
23.4 days - Average rainfall days in May:
26.3 days - Average rainfall days in June:
27.6 days
- Average rainfall days in July:
27.7 days - Average rainfall days in August:
28.4 days - Average rainfall days in September:
24.4 days - Average rainfall days in October:
25.9 days - Average rainfall days in November:
23.3 days - Average rainfall days in December:
20.3 days
The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).
Average sea temperature
Negombo, Sri Lanka
The best month for swimming (with the highest average sea temperature) is April (29.7°C).
The coldest month (with the lowest average sea temperature) is August (27°C).
Average daylight / Average sunshine
Negombo, Sri Lanka
- Average daylight in January:
11h and 5min - Average daylight in February:
11h and 5min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 2min - Average daylight in May:
12h and 3min - Average daylight in June:
12h and 3min
- Average daylight in July:
12h and 3min - Average daylight in August:
12h and 2min - Average daylight in September:
12h and 1min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 5min - Average daylight in December:
11h and 4min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in January:
9h and 1min - Average sunshine in February:
9h and 1min - Average sunshine in March:
9h and 1min - Average sunshine in April:
9h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
8h and 1min
- Average sunshine in July:
8h and 0min - Average sunshine in August:
7h and 3min - Average sunshine in September:
7h and 4min - Average sunshine in October:
7h and 5min - Average sunshine in November:
6h and 4min - Average sunshine in December:
7h and 0min
The months with the most sunshine are January, February, March and April (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).
Average sunshine days
Negombo, Sri Lanka
- Average sunshine days in January:
20 days - Average sunshine days in February:
16.5 days - Average sunshine days in March:
10.4 days - Average sunshine days in April:
4.6 days - Average sunshine days in May:
3.6 days - Average sunshine days in June:
1.7 days
- Average sunshine days in July:
2.1 days - Average sunshine days in August:
1.2 days - Average sunshine days in September:
3 days - Average sunshine days in October:
3.3 days - Average sunshine days in November:
6.3 days - Average sunshine days in December:
9.5 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).
Average UV index
Negombo, Sri Lanka
The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).
Average cloud cover
Negombo, Sri Lanka
The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 21).
Average visibility
Negombo, Sri Lanka
The months with the highest visibility are January, February, March, April, June, July, September and December (10km).
The months with the lowest visibility are May, August, October and November (9km).
