Ubon Ratchathani is rarely comfortable to be outside at midday. It comes closest in late December, and even then it is too hot. For sun, aim for late December to early January.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
The sun season here runs from late December to early January. It peaks in late December, at 59. The weakest stretch is from mid April to June, when it drops to 5, mostly because it is too hot. The clearest skies come in February, when the sky is typically 37% covered at midday (partly cloudy).
Being outside is not what Ubon Ratchathani is for: the Easy outdoors rating tops out at 30, mostly because it is too hot.
Walking is not what Ubon Ratchathani is for: the Active outdoors rating tops out at 8, mostly because it is too warm.
The year, measured
The average temperature in Ubon Ratchathani over the whole year is 27°C. April is the hottest month, with highs of about 35°C; January is the coldest, with lows of about 19°C. The rainy (wet) season in Ubon Ratchathani runs from April to October, peaking in September with a 69% chance of rain on a given day. The dry season is November to March; December is the driest month, at 25%. Winds in Ubon Ratchathani are highest in December, averaging 2.3 m/s (8 km/h), and lightest in September, at 1.0 m/s (4 km/h). The prevailing wind is from the N. The clearest skies in Ubon Ratchathani come in February, when the sky is typically 34% covered; August is the cloudiest month, at 72%.
Month by month Ubon Ratchathani climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 30°C | 19°C | 31°C | 26% | 39% | 1.6 m/s | 20 | 55 | 6 |
| February | 32°C | 20°C | 33°C | 45% | 34% | 1.5 m/s | 12 | 45 | 3 |
| March | 34°C | 24°C | 36°C | 46% | 41% | 1.3 m/s | 3 | 19 | 0 |
| April | 35°C | 26°C | 38°C | 53% | 48% | 1.3 m/s | 2 | 9 | 0 |
| May | 33°C | 26°C | 38°C | 66% | 61% | 1.1 m/s | 1 | 6 | 0 |
| June | 32°C | 26°C | 37°C | 64% | 66% | 1.3 m/s | 1 | 7 | 0 |
| July | 31°C | 26°C | 36°C | 67% | 72% | 1.3 m/s | 2 | 14 | 0 |
| August | 31°C | 26°C | 36°C | 65% | 72% | 1.2 m/s | 0 | 11 | 0 |
| September | 31°C | 25°C | 36°C | 69% | 70% | 1.0 m/s | 1 | 13 | 0 |
| October | 31°C | 24°C | 35°C | 63% | 57% | 1.4 m/s | 3 | 23 | 0 |
| November | 31°C | 22°C | 34°C | 38% | 46% | 1.9 m/s | 8 | 40 | 1 |
| December | 30°C | 20°C | 31°C | 25% | 39% | 2.3 m/s | 26 | 55 | 7 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Ubon Ratchathani weather by season
Year round, Ubon Ratchathani has days of about 30°C at their warmest in December, its coolest month, and 35°C in April, its warmest; the coolest hours of the day run from 19°C to 26°C through the year, and the average temperature over the year is 27°C around the clock. Rain is most likely around September and least likely around December. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Ubon Ratchathani weather in winterDecember to February
Winter in Ubon Ratchathani has typical daily highs of about 30°C and lows of about 20°C, with a 32% chance of rain on a given day.
Ubon Ratchathani weather in springMarch to May
Spring in Ubon Ratchathani has typical daily highs of about 34°C and lows of about 25°C, with a 55% chance of rain on a given day.
Ubon Ratchathani weather in summerJune to August
Summer in Ubon Ratchathani has typical daily highs of about 32°C and lows of about 26°C, with a 65% chance of rain on a given day.
Ubon Ratchathani weather in autumnSeptember to November
Autumn in Ubon Ratchathani has typical daily highs of about 31°C and lows of about 24°C, with a 56% chance of rain on a given day.
When is the rainy season in Ubon Ratchathani?
The rainy (wet) season in Ubon Ratchathani runs from April to October, peaking in September with a 69% chance of rain on a given day. The dry season is November to March; December is the driest month, at 25%.
What time of year is Ubon Ratchathani windiest?
Winds in Ubon Ratchathani are highest in December, averaging 2.3 m/s (8 km/h), and lightest in September, at 1.0 m/s (4 km/h). The prevailing wind is from the N.
What is the average temperature in Ubon Ratchathani year round?
The average temperature in Ubon Ratchathani over the whole year is 27°C. April is the hottest month, with highs of about 35°C; January is the coldest, with lows of about 19°C.
Where to go instead in late April, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.