Negombo at a glance
- Best time
- Jan – Mar
- Warmest month
- Feb · 32°
- Warmest sea
- Apr · 29.9°
- Sunshine a year
- 2,410 h
- Rain a year
- 2,400 mm
- Climate
- Tropical
- Time zone
- UTC+5:30
- Elevation
- 8 m
Climate in Negombo
Negombo has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. February is the warmest month with average highs of 32 °C, while August is the coolest at 29 °C. With around 2,410 hours of sunshine a year, Negombo is sunny; February is the sunniest month with 8.8 hours a day.
Weather in October
Holiday weather in October
Good
Best time to visit: January – March
What is the weather like in Negombo in October?
In October, Negombo is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 28.4 °C – lovely and warm for swimming. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 358 mm. The air is often humid and muggy. All in all, October is a good month for a holiday in Negombo.
More details for October
- Daylight
- 11 h 58 min05:57 – 17:55
- UV index
- 13 · extremeclear sky, noon (estimate)
- Muggy days
- 31 daysdew point 18 °C or more
- Wind
- 14 km/haverage daily peak
- Cloud cover
- 83 %on average
- Hot days
- 2 days30 °C or more
- Time zone
- UTC+5:30Asia/Colombo
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %38 %
- Few rainy daysweight 20 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Sea temperature in Negombo
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 27.8 – 28.9 °C
Swimming season: All year
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Negombo ranges from 27.6 °C in August to 29.9 °C in April. At 20 °C and more, the sea is warm enough for swimming all year round.
The sea warms up slowly: it is warmest in April, while the air already peaks in February. The sea temperature varies from year to year: in April, eight out of ten years were between 29.2 and 30.5 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 27.8° | 27.2° | 28.5° | warm |
| FebruaryFeb | 28.2° | 27.7° | 28.8° | warm |
| MarchMar | 29.2° | 28.7° | 29.7° | very warm |
| AprilApr | 29.9° | 29.2° | 30.5° | very warm |
| MayMay | 29.4° | 28.8° | 30.0° | very warm |
| JuneJun | 28.6° | 27.8° | 29.1° | warm |
| JulyJul | 27.8° | 26.9° | 28.4° | warm |
| AugustAug | 27.6° | 26.8° | 28.1° | warm |
| SeptemberSep | 27.9° | 27.5° | 28.5° | warm |
| OctoberOct | 28.4° | 27.8° | 28.9° | warm |
| NovemberNov | 28.7° | 28.2° | 29.2° | warm |
| DecemberDec | 28.3° | 27.9° | 28.9° | warm |
Sunshine hours in Negombo
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.3 of 12.0 hours of daylight in Negombo, 44 % of the day.
Sunshine hours count the time with bright, direct sunshine (WMO definition, estimated from model data); daylight is the time from sunrise to sunset on the 15th of the month.
Rain in Negombo: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Negombo has about 28 rainy days with 358 mm of rain in total.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 92 | 30° | 23° | 27.8° | 8.1 h | 8 | 62 |
| FebruaryFeb | 91 | 32° | 24° | 28.2° | 8.8 h | 7 | 49 |
| MarchMar | 78 | 32° | 25° | 29.2° | 8.4 h | 15 | 93 |
| AprilApr | 74 | 31° | 26° | 29.9° | 7.2 h | 27 | 186 |
| MayMay | 70 | 30° | 26° | 29.4° | 6.0 h | 29 | 254 |
| JuneJun | 70 | 29° | 26° | 28.6° | 5.9 h | 29 | 246 |
| JulyJul | 70 | 29° | 25° | 27.8° | 6.1 h | 28 | 218 |
| AugustAug | 71 | 29° | 25° | 27.6° | 6.2 h | 28 | 210 |
| SeptemberSep | 69 | 29° | 25° | 27.9° | 5.8 h | 28 | 242 |
| OctoberOct | 68 | 29° | 25° | 28.4° | 5.3 h | 28 | 358 |
| NovemberNov | 67 | 29° | 24° | 28.7° | 5.2 h | 23 | 329 |
| DecemberDec | 76 | 29° | 24° | 28.3° | 6.4 h | 15 | 152 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)
7.21° N, 79.84° E · 8 m · Asia/Colombo
Best time to visit Negombo
The best time to visit Negombo is from January to March. For a beach holiday with the sea above 21 °C, go from January to February. Rain is most frequent from March to December; the wettest month is October with 358 mm.
Find your perfect month
Tell us what you like and we rate every month in Negombo for you.
Your best months: December – February
Based on the climate averages; tap a month to see its details.
Which month for what?
Beach & swimming
Jan – Feb
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
Mar – Dec
12 or more rainy days
Negombo month by month
The typical weather for every month at a glance.
92January30° · Sea 28° · 8 h
In January, Negombo is hot: daytime highs average 30 °C, and even at night it stays warm at around 23 °C. The sea averages 27.8 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain falls on about 8 days, adding up to 62 mm. On about 16 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is an excellent month for a holiday in Negombo.
Negombo in January91February32° · Sea 28° · 9 h
In February, Negombo is hot: daytime highs average 32 °C, and even at night it stays warm at around 24 °C. The sea averages 28.2 °C – lovely and warm for swimming. The sun shines for around 9 hours a day. Rain falls on about 7 days, adding up to 49 mm. On about 24 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, February is an excellent month for a holiday in Negombo.
Negombo in February78March32° · Sea 29° · 8 h
In March, Negombo is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.2 °C – almost as warm as a bath. The sun shines for around 8 hours a day. It is the rainy season: rain falls on about 15 days, totalling 93 mm. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, March is a good month for a holiday in Negombo.
Negombo in March74April31° · Sea 30° · 7 h
In April, Negombo is hot: daytime highs average 31 °C, and even at night it stays warm at around 26 °C. The sea averages 29.9 °C – almost as warm as a bath. The sun shines for around 7 hours a day. It is the rainy season: rain falls on about 27 days, totalling 186 mm. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a good month for a holiday in Negombo.
Negombo in April70May30° · Sea 29° · 6 h
In May, Negombo is hot: daytime highs average 30 °C, and even at night it stays warm at around 26 °C. The sea averages 29.4 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 29 days, totalling 254 mm. On about 11 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is a good month for a holiday in Negombo.
Negombo in May70June29° · Sea 29° · 6 h
In June, Negombo is hot: daytime highs average 29 °C, and even at night it stays warm at around 26 °C. The sea averages 28.6 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 29 days, totalling 246 mm. The air is often humid and muggy. All in all, June is a good month for a holiday in Negombo.
Negombo in June70July29° · Sea 28° · 6 h
In July, Negombo is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 27.8 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 218 mm. The air is often humid and muggy. All in all, July is a good month for a holiday in Negombo.
Negombo in July71August29° · Sea 28° · 6 h
In August, Negombo is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 27.6 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 210 mm. The air is often humid and muggy. All in all, August is a good month for a holiday in Negombo.
Negombo in August69September29° · Sea 28° · 6 h
In September, Negombo is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 27.9 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 242 mm. The air is often humid and muggy. All in all, September is a good month for a holiday in Negombo.
Negombo in September68October29° · Sea 28° · 5 h
In October, Negombo is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 28.4 °C – lovely and warm for swimming. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 358 mm. The air is often humid and muggy. All in all, October is a good month for a holiday in Negombo.
Negombo in October67November29° · Sea 29° · 5 h
In November, Negombo is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 28.7 °C – lovely and warm for swimming. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 23 days, totalling 329 mm. On about 6 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is a good month for a holiday in Negombo.
Negombo in November76December29° · Sea 28° · 6 h
In December, Negombo is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 28.3 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 15 days, totalling 152 mm. On about 7 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is a good month for a holiday in Negombo.
Negombo in DecemberPlanning a trip to Negombo
Getting there
Flying from
- Nonstop flight
- about 11 h
- Distance
- 8,710 km
- Time zone
- UTC+5:30
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Negombo
When is the best time to visit Negombo?
The best time to visit Negombo is from January to March. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Negombo?
The sea temperature in Negombo ranges from 27.6 °C in August to 29.9 °C in April. At 20 °C and more, the sea is warm enough for swimming all year round.
Can you swim in Negombo in October?
Yes. In October the sea averages 28.4 °C – lovely and warm for swimming.
What is the warmest month in Negombo?
February is the warmest month, with average highs of 32 °C and nights around 24 °C. August is the coolest month at 29 °C.
When does it rain most in Negombo?
Rain is most frequent from March to December; the wettest month is October with 358 mm. The driest month is February with 49 mm.
How many hours of sunshine does Negombo get?
Negombo gets around 2,410 hours of sunshine a year. The sunniest month is February with 8.8 hours a day; in November there are 5.2 hours a day.
What time zone is Negombo in?
Negombo uses the time zone Asia/Colombo, at UTC+5:30 all year.
How long is the flight from London to Negombo?
A nonstop flight from London to Negombo takes about 11 h, for a straight-line distance of about 8,710 km.
Near Negombo
Other destinations close by.