When is the best time to go to Siao
The chart above shows the best time of year to visit Siao, Thailand. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Siao
Siao weather by month
Please note our recommendations for when to visit Siao are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 28°C | 1mm | 10hrs | 12.1hrs |
Hot and very dry weather often prevails in Siao during the month of January
It is perhaps a good month to visit Siao, with some extremely good weather at this time of year.
January is in the winter in Siao and is typically the coldest month of the year. Daytime maximum temperatures average around 31°C (88°F), whilst at night 17°C (63°F) is normal.
On average January is the driest month of the year in Siao with around 1mm 0 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 10 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 30°C | 10mm | 9.8hrs | 12.4hrs |
February in Siao is generally very dry with the temperature being hot.
It is perhaps a good month to visit Siao, with some very good weather at this time of year.
February is in the winter in Siao and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a warm 34°C (92°F), whilst at night 20°C (68°F) is normal.
On average February is the 2nd driest month of the year in Siao with around 10mm 0.4 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 9.8 hours of sunshine per day.
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 32°C | 26mm | 9.3hrs | 12.7hrs |
The weather in March in Siao is characteristically very hot and dry.
It is perhaps a good month to visit Siao, with some very good weather at this time of year.
March is in the spring in Siao and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a warm 36°C (96°F), whilst at night 23°C (73°F) is normal.
On average March is the 3rd driest month of the year in Siao with around 26mm 1 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.3 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 32°C | 82mm | 8.6hrs | 13.2hrs |
Siao's weather in April is typically very hot and a little damp in nature.
Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit Siao.
April is in the spring in Siao and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a hot 36°C (96°F), whilst at night 24°C (76°F) is normal.
On average April is the 4th driest month of the year in Siao with around 82mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.6 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 31°C | 200mm | 7.8hrs | 13.5hrs |
May is a very wet, humid month in Siao and the temperature is generally very hot.
Based on weather alone, this is probably a time of year to avoid going to Siao for your holidays. The weather is often not a good and not conducive to spending time outdoors.
May is in the spring in Siao and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a steamy 34°C (93°F), whilst at night 24°C (76°F) is normal.
On average May is the 5th driest month of the year in Siao with around 200mm 7.9 inches of rain making it a very wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.8 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 29°C | 262mm | 6.2hrs | 12.1hrs |
The climate in Siao during June can be summarized as very hot, humid and very wet.
Based on weather alone, this is probably a time of year to avoid going to Siao for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
June is in the summer in Siao and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 32°C (90°F), whilst at night 24°C (75°F) is normal.
On average June is the 6th driest month of the year in Siao with around 262mm 10.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.2 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 28°C | 273mm | 6.3hrs | 12.4hrs |
July in Siao is generally very wet with the temperature being hot.
Based on weather alone, this is probably a time of year to avoid going to Siao for your holidays. The weather is often not a good and not conducive to spending time outdoors.
July is in the summer in Siao and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 24°C (75°F) is normal.
On average July is the 6th wettest month of the year in Siao with around 273mm 10.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.3 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 28°C | 321mm | 5.6hrs | 12.7hrs |
The weather in August in Siao is characteristically hot, humid and very wet.
Based on weather alone, this is probably a time of year to avoid going to Siao for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
August is in the summer in Siao and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 24°C (75°F) is normal.
On average August is the 5th wettest month of the year in Siao with around 321mm 12.6 inches of rain making it a very wet time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.6 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 28°C | 289mm | 5.8hrs | 13.2hrs |
Siao's weather in September is typically hot, humid and very wet in nature.
Based on weather alone, this is probably a time of year to avoid going to Siao for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
September is in the fall / autumn in Siao and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 24°C (74°F) is normal.
On average September is the 4th wettest month of the year in Siao with around 289mm 11.4 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 hours of sunshine per day.
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 28°C | 118mm | 7.5hrs | 13.5hrs |
October is a damp, humid month in Siao and the temperature is generally hot.
Based on weather alone, this is probably a time of year to avoid going to Siao for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
October is in the fall / autumn in Siao and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 23°C (73°F) is normal.
On average October is the 3rd wettest month of the year in Siao with around 118mm 4.6 inches of rain making it a damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.5 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 27°C | 21mm | 8.8hrs | 12.1hrs |
Hot, humid and dry weather often prevails in Siao during the month of November
Although outside the main holiday season, there is still plenty of pretty acceptable weather around this time of year. This makes it an okay time to visit Siao.
November is in the fall / autumn in Siao and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 21°C (69°F) is normal.
On average November is the 2nd wettest month of the year in Siao with around 21mm 0.8 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.8 hours of sunshine per day.
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 27°C | 2mm | 9.4hrs | 12.4hrs |
December in Siao is generally very dry with the temperature being hot.
It is perhaps the perfect month to visit Siao, with some extremely good weather at this time of year.
December is in the winter in Siao and is typically the warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (86°F), whilst at night 18°C (64°F) is normal.
On average December is the wettest month of the year in Siao with around 2mm 0.1 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 9.4 hours of sunshine per day.
Other monthly averages
Siao weather stats
| Hottest month: | April | 35.5°C 95.9°F |
|---|---|---|
| Driest month: | January | 1mm 0ins |
| Sunniest month: | January | 10hrs |
| Coldest month: | December | 29.8°C 85.6°F |
| Wettest month: | August | 321mm 12.6ins |
| Warmest sea: | June | 29.5°C 85.1°F |
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