Serai Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Serai.
Climate overview of Serai
Serai, North Sulawesi, Indonesia, enjoys a steady climate throughout the year, with daytime temperatures typically around 30°C (86°F). September is the warmest month at 30°C (86°F), while January is the coolest at 29°C (84°F).
The city has a wet climate, receiving around 2128 mm (84 in) of rainfall per year. Despite the high annual total, it has a distinct rainy season from November to June. January is the wettest month. The most sunshine falls in August, with an average of 7.0 hours of daily sunshine.
Serai Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Serai — and find the best time to visit.
Monthly Temperature in Serai
The temperature in Serai remains steady throughout the year, providing a consistently very warm climate. On average, daytime temperatures range from a very warm 30°C (86°F) in September to a comfortable 29°C (84°F) in January.
Nighttime temperatures range from 26°C (79°F) in September to 26°C (79°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Serai
Serai has a relatively rainy climate with high precipitation levels, averaging 2128 mm (84 in) of rainfall annually. The seasons in Serai bring significant changes in precipitation. The wettest month, January, receives heavy rainfall, with an average of 283 mm (11 in) of precipitation. This rainfall is distributed across 21 rainy days.
In contrast, the driest month, August, experiences much less rainfall, totaling 65 mm (2.6 in) over 10 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Serai Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Serai
In Serai, summer days are longer and more sunny, with daily sunshine hours peaking at 7.0 hours in August. As the darker season arrives, the brightness of the sun becomes less. February sees a soft sun for only 4.0 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Water Temperature in Serai
The mean water temperature over the year ranges from 28°C (82°F) in January to 29°C (84°F) in April.
Water temperature over the year
Humidity in Serai by Month
The relative humidity is high throughout the year in Serai.
The city experiences its highest humidity in January, reaching 84%. In August, the humidity drops to its lowest level at 72%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Serai
For a more comfortable experience, start your day early when the weather is cooler, or take advantage of the gentle breezes in the late afternoon.
The rainy season occurs during January, February, March, April, May, June, November and December, when the area experiences its heaviest rainfall. Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Serai
What is the best time to visit Serai?
March, August and September typically offer the most optimal weather in Serai. In contrast, January, April, November and December tend to have less optimal conditions. Serai has a distinct rainy season from November to June.
What temperatures can I expect in Serai?
Daytime highs range from 29°C (84°F) in January to 30°C (86°F) in September. Nighttime lows range from 26°C (79°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does Serai get?
Annual rainfall is around 2128 mm (84 in). January is the wettest month with 283 mm (11 in), while August is the driest with 65 mm (2.6 in).
How sunny is Serai?
Serai receives around 1,870 hours of sunshine per year. August is the sunniest month with 211 hours, while February is the cloudiest with just 120 hours.
Serai 3-Day Forecast
Serai 3-Day Forecast
Serai on the map
Serai is highlighted — select any city to see its climate.
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