Bangkok
Thailand
Long-term weather forecast
Long-term weather forecast
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April weather forecast and Climate
Bangkok, Thailand

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A beautiful park in spring outside the Wat Ratchanatdaram Temple in the heart of Bangkok, Thailand
A beautiful park in spring outside the Wat Ratchanatdaram Temple in the heart of Bangkok, Thailand
April is the peak of summer with an average high temperature around 35.6°C (96.1°F). The heat is scorching, particularly around mid-day, and air-conditioners run everywhere from offices to hotels. April sees many days that cross 37.8°C (100°F) while the nights are mostly above 26.7°C (80.1°F).
The seawaters are around 29.4°C (84.9°F) and do not offer any respite from the heat. April gathers a few clouds as the rain registers to 91.4mm (3.6") in the month. The daylight lasts for a minimum of 12 hours, so it is not necessary to trundle in the glaring sun that is present for a daily 8.6 hours.
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  • The average high temperature in April: 35.4°C

The warmest month (with the highest average high temperature) is April (35.4°C).
The month with the lowest average high temperature is December (31.7°C).

  • The average low temperature in April: 26.9°C

The month with the highest average low temperature is April (26.9°C).
The coldest month (with the lowest average low temperature) is December (22°C).

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  • The average humidity in April: 72%

The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is December (66%).

  • The average rainfall in April: 91.4mm

The wettest month (with the highest rainfall) is September (334.3mm).
The driest month (with the lowest rainfall) is December (6.3mm).

  • The average rainfall days in April: 6 days

The month with the highest number of rainy days is September (21 days).
Months with the lowest number of rainy days are January and December (1 days).

  • The average sea temperature in April: 29.4°C

The best month for swimming (with the highest average sea temperature) is May (29.9°C).
The coldest month (with the lowest average sea temperature) is January (26.7°C).

  • The average daylight in April: 12h

Months with the longest days are May, June, July and August (Average daylight: 13h).
Months with shortest days are January, November and December (Average daylight: 11h).

  • The average sunshine in April: 8.6h

The month with most sunshine is February (Average sunshine: 9h).
Months with least sunshine are August and September (Average sunshine: 5.2).

  • The average UV index in April: 12

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

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