Ko Jum Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Ko Jum.

Climate overview of Ko Jum

Ko Jum, Krabi Province, Thailand, has a stable climate with little temperature variation across the year. Average daytime temperatures hover around 30°C (86°F), peaking in March at 32°C (90°F) and dipping in October to 30°C (86°F).

Rainfall is high, totalling around 2347 mm (92 in) per year. October is the wettest month and February the driest. The city also experiences a distinct rainy season from May to November. Sunshine peaks in February, when the city sees around 7.2 hours of sunshine per day.

Ko Jum Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Ko Jum - and find the best time to visit.

Monthly Temperature in Ko Jum

With minimal seasonal shifts, Ko Jum experiences a constant climate year-round. Average maximum daytime temperatures range from a very warm 32°C (90°F) in March, the warmest time of the year, to a comfortable 30°C (86°F) during cooler months like October.

At night, you can expect temperatures ranging from 27°C (81°F) in March to around 25°C (77°F) during October.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Ko Jum

Ko Jum has a notably wet climate with abundant precipitation, recording 2347 mm (92 in) of rainfall per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, October it receives heavy rainfall, averaging 320 mm (13 in) of precipitation, recorded across 22 rainy days. In contrast, the driest month February brings less rainfall, with 36 mm (1.4 in) over 3 rainy days. For more details, please visit our Ko Jum Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Ko Jum

Seasonal changes in sunshine hours are quite dramatic in Ko Jum. While February receives considerable daily sunshine with up to 7.2 hours, October marks the darkest time of the year, where sunshine is scarce with only 3.7 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Railey, Thailand (24 KM, 15 Miles).

Daily hours of sunshine

Data from: Railey, Thailand (24 KM, 15 Miles).

Humidity in Ko Jum by Month

Best Time to Visit Ko Jum

The most favourable weather available in Ko Jum usually occurs in January, February and March. Conditions are generally most challenging in May, June, July, August, September, October and November.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: January, February and March
  • Warmest weather: January, February, March, April, May, June, July, August and December
  • Most sunshine: February
  • Fewest rainy days: January, February and March
  • Seasonal pattern: A distinct rainy season from May to November

Frequently asked questions about the climate in Ko Jum

What is the best time to visit Ko Jum?

January, February and March typically offer the most optimal weather in Ko Jum. In contrast, May, June, July, August, September, October and November tend to have less optimal conditions. Ko Jum has a distinct rainy season from May to November.

What temperatures can I expect in Ko Jum?

Daytime highs range from 30°C (86°F) in October to 32°C (90°F) in March. Nighttime lows range from 25°C (77°F) to 27°C (81°F). Temperatures stay relatively stable year-round.

How much rain does Ko Jum get?

Annual rainfall is around 2347 mm (92 in). October is the wettest month with 320 mm (13 in), while February is the driest with 36 mm (1.4 in).

How sunny is Ko Jum?

Ko Jum receives around 1,993 hours of sunshine per year. February is the sunniest month with 215 hours, while October is the cloudiest with just 110 hours.

Ko Jum 3-Day Forecast

Ko Jum on the map

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