May Weather in Chiang Khan, Thailand

Last updated: August 27, 2025

In May, Chiang Khan, Thailand experiences warm and humid weather, with temperatures peaking at a sizzling 40°C (105°F) and averaging around 29°C (84°F). The evenings bring a slight reprieve, as temperatures dip to a comfortable 21°C (70°F). However, this period is also characterized by significant precipitation, totaling 171 mm (6.7 in) over approximately 20 days, adding to the lush scenery. With an average humidity of 69%, visitors can expect a tropical ambiance, making this vibrant destination both lively and refreshing during the month of May.

May Temperature in Chiang Khan

In Chiang Khan, Thailand, May marks a notable transition into warmer weather, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 40°C (105°F). This month showcases an increase in both average temperatures, sitting at a comfortable 29°C (84°F), and a slight rise from the previous months. As the region progresses from the pleasant conditions of April, May's warmth heralds the onset of the hotter summer months, with evening breezes still offering some respite. The gradual increase in nighttime temperatures also hints at the upcoming humidity typical of the season, encouraging visitors to enjoy the bustling daytime activities while embracing the vibrant atmosphere of this charming town.

May Weather in Chiang Khan: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Chiang Khan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chiang Khan, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec737581838383828281807772
Data source: Temperature data for Chiang Khan generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Chiang Khan

May in Chiang Khan witnesses a significant uptick in rainfall, marked by a striking 171 mm (6.7 in) of precipitation over 20 days. This surge not only highlights May as one of the wettest months of the year but also sets the stage for the monsoon season that follows. As temperatures rise, the frequency of rain increases dramatically compared to earlier months, where January to April saw relatively minimal precipitation—ranging from just 7 mm to 78 mm. The gradual transition from the dry season to the lush greenery of late spring signals a vibrant shift in the landscape, with the town preparing for the abundance that comes with the heavier rains of June and beyond. This pattern underscores Chiang Khan's climate rhythm, where May serves as a pivotal gateway to the lush, vibrant summer months ahead.

May Precipitation Trends in Chiang Khan

The chart displays monthly precipitation patterns in Chiang Khan, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Chiang Khan, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec82232781712212333212531431510
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Chiang Khan

As the vibrant month of May arrives in Chiang Khan, Thailand, residents and visitors alike experience a notable shift in humidity levels, which soar to a considerable 69%. This marks a stark contrast to the drier months preceding it, with January peaking at just 52% and February even lower at 49%. The rising humidity in May hints at the onset of the monsoon season, setting the stage for the more humid months ahead, where June reaches 81%, July 83%, and August hits a peak of 87%. This trend not only highlights the transition to a wetter season but also serves as a reminder of the lush landscape and vibrant greenery that follows these humid conditions, enriching the natural beauty of Chiang Khan.

May Average Humidity in Chiang Khan

This chart illustrates the average monthly humidity levels in Chiang Khan, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Chiang Khan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec52%49%39%40%69%81%83%87%86%74%63%57%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Chiang Khan

May marks a peak in the UV Index for Chiang Khan, Thailand, reaching an intense 14, categorized as extreme. The trend observed throughout the months leading up to May shows a consistent rise, with UV levels climbing from 9 in January to 14 starting in May and continuing through August. With a burn time of just 10 minutes, it's crucial for residents and visitors alike to prioritize sun protection during this time. As summer approaches, awareness of the high UV levels becomes essential. For detailed information on UV exposure in the area, check out Chiang Khan UV Index.

Maximum UV Index Levels in Chiang Khan for May

The chart shows the monthly maximum UV Index (UVI) for Chiang Khan in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Chiang Khan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9121313141414141412108
Data source: Chiang Khan May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Chiang Khan

As May unfolds in Chiang Khan, Thailand, the days remain wonderfully sun-drenched, boasting an impressive 304 hours of sunshine. This marks a slight dip from the previous month, yet still reflects the area’s radiant spring charm. Following the peak of March at 322 hours, it's evident that the sun glimmers consistently throughout the earlier months of the year, with April also basking in ample light at 310 hours. As summer approaches, sunshine hours begin to gradually decrease, signaling a transition as June brings 262 hours. Yet May’s allure lies in its harmonious balance of warmth and daylight, inviting visitors to soak in the vibrant atmosphere before the rainy season softly takes its place.

Monthly Sunshine Duration in Chiang Khan: May Highlighted

The May sunshine duration represents the total number of hours Chiang Khan experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec252h294h322h310h304h262h261h233h272h284h305h313h
Data source: Chiang Khan May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Chiang Khan During May

When planning a trip to Chiang Khan, Thailand, in May, be prepared for a shift in weather patterns. While the chances of sunny skies shine brightly during the early months, such as January and February with probabilities soaring above 80%, they take a noticeable dip as the year progresses. In April, the likelihood drops to 25%, and by May, it stabilizes at a modest 37%. This trend indicates that while May offers some potential for sunshine, visitors should also anticipate a mix of clouds and rain, as the rainy season begins to set in. Thus, packing an umbrella along with your sunglasses might be the wisest choice for this enchanting destination.

Percentage of Sunny Days in May in Chiang Khan

The chart illustrates the percentage of sunny days in Chiang Khan throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Chiang Khan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec81%84%66%25%37%14%13%13%14%26%61%84%
Data source: Chiang Khan May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Chiang Khan in May

In Chiang Khan, Thailand, daylight duration experiences a distinct rhythm throughout the year. Starting the year with a consistent 11 hours in January and February, the days gradually lengthen as spring arrives, reaching 12 hours by March and April. Interestingly, May maintains this 12-hour mark, offering ample daylight for outdoor activities. As summer approaches in June, daylight peaks at 13 hours, creating the longest days of the year. This extended sunlight continues into July but tapers back to 12 hours by August. The transition into autumn sees a return to 11 hours by October and a consistent rhythm through November and December, portraying a beautiful cycle of light and dark that harmonizes with the changing seasons in this charming town.

Average Daylight Hours in Chiang Khan for May

The chart illustrates the variation in daylight duration in Chiang Khan throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 10m11h 32m12h 2m12h 32m12h 57m13h 10m13h 3m12h 41m12h 12m11h 42m11h 16m11h 3m
Data source: Chiang Khan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Chiang Khan

In May, Chiang Khan experiences a gentle breeze with an average wind speed of 1.3 m/s (3 mph), maintaining the tranquil feel of the early summer month. This slight dip in wind speed from April reflects a trend where the calmness of spring lingers just before the winds pick up in June. As the seasons transition, the consistent patterns of gentle winds in January through April give way to the more brisk breezes often found in mid-year, suggesting a shift in the local climate. Visitors in May can enjoy the serene atmosphere while anticipating the invigorating winds of summer, which are just around the corner.

Average May Wind Speed in Chiang Khan

The chart displays monthly wind speed patterns in Chiang Khan, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.61.61.31.3 m/s2.02.01.71.41.31.51.5
Data source: Chiang Khan May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Chiang Khan Compares to Other Months

Weather in Chiang Khan varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Chiang Khan, focusing on differences in temperature, rainfall, humidity, and UV levels.

May and January present starkly contrasting weather patterns. In May, temperatures can soar between a minimum of 21°C (70°F) and a scorching maximum of 40°C (105°F), with an average of 29°C (84°F). This month experiences significant rainfall, totaling 171 mm (6.7 in) over approximately 20 days, accompanied by high humidity levels of 69%. In contrast, January showcases much cooler temperatures, ranging from a minimum of 10°C (50°F) to a maximum of 35°C (95°F), with an average of 23°C (73°F). Rainfall is minimal, with only 7 mm (0.3 in) occurring over just 1 day, and the humidity is lower at 52%. For a detailed look at January’s weather specifics, you can visit Chiang Khan weather in January.

In comparing the weather between May and February, it's evident that May is significantly warmer and more humid. May sees temperatures ranging from a minimum of 21°C (70°F) to a scorching maximum of 40°C (105°F), with an average temperature of 29°C (84°F). In contrast, February is cooler, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 37°C (99°F) and an average of 24°C (75°F). Additionally, May experiences much higher precipitation, totaling 171 mm (6.7 in) over 20 days, compared to February's mere 22 mm (0.9 in) over just 2 days. The humidity is also higher in May at 69%, while February’s humidity is a more comfortable 49%. For a closer look at February weather patterns, you can check out Chiang Khan weather in February.

In comparing the weather between March and May, it is clear that May features significantly warmer temperatures, with average highs reaching 40°C (105°F) compared to March's peak of 39°C (102°F). Additionally, May experiences a much higher level of humidity at 69% versus March's 39%, resulting in a more tropical feel. However, March boasts significantly less precipitation, with only 32 mm (1.3 in) over 6 days, while May sees a notable increase in rainfall, accumulating 171 mm (6.7 in) over 20 days. For more details on the climate during this month, check out Chiang Khan weather in March.

In comparing the weather between April and May, we see a notable shift in temperature and humidity levels. April welcomes slightly cooler temperatures, with a minimum of 17°C (62°F) and an average of 28°C (83°F), while May presents warmer conditions, with a minimum of 21°C (70°F) and an average of 29°C (84°F). Interestingly, both months share the same maximum temperature of 41°C (105°F).

However, May experiences significantly more precipitation, totaling 171 mm (6.7 in) over 20 days, compared to April's 78 mm (3.1 in) over just 12 days. This increased rainfall contributes to a higher humidity level in May at 69%, versus April's relatively lower humidity of 40%. If you would like more specifics on April weather patterns, consider checking out Chiang Khan weather in April.

In comparing the weather of May and June, both months exhibit similar average temperatures, hovering around 29°C (84°F). However, June experiences slightly warmer nights with a minimum temperature of 23°C (74°F) compared to May's 21°C (70°F). June also sees increased precipitation, accumulating 221 mm (8.7 in) over 22 days, compared to May's 171 mm (6.7 in) over 20 days. Additionally, June boasts higher humidity levels at 81%, compared to May's 69%. This shift in weather conditions signals a transition into the wetter season in the region. For more details, check out Chiang Khan weather in June.

In comparing the weather between May and July, June typically experiences slightly warmer nights with a minimum temperature of 23°C (74°F) compared to May's 21°C (70°F). However, the average temperature in May is a bit higher at 29°C (84°F) compared to July's average of 28°C (83°F). July sees more precipitation, with 233 mm (9.2 in) over 23 days, which is significantly higher than May’s 171 mm (6.7 in) across 20 days, and the humidity also rises in July, reaching 83% compared to May's 69%. For a detailed look at July weather, you can check Chiang Khan weather in July.

May and August in Chiang Khan present notably different weather patterns. In May, temperatures range from a minimum of 21°C (70°F) to a maximum of 40°C (105°F), with an average of 29°C (84°F). The month sees significant precipitation, totaling 171 mm (6.7 in) across 20 days, accompanied by a humidity level of 69%. Conversely, August experiences slightly warmer minimum temperatures at 23°C (74°F) and a cooler maximum of 36°C (97°F), with an average of 28°C (82°F). Precipitation in August is even more pronounced, amounting to 321 mm (12.6 in) over 25 days, and humidity peaks at 87%. For more detailed insights, check Chiang Khan weather in August.

May and September showcase distinct weather patterns, with May being characterized by higher average and maximum temperatures, ranging from a minimum of 21°C (70°F) to a sweltering maximum of 40°C (105°F). In contrast, September features a milder temperature range, with averages around 27°C (82°F) and maximums reaching 35°C (96°F). However, September experiences increased precipitation, averaging 253 mm (10.0 in) over 23 days, compared to May's 171 mm (6.7 in) spread across 20 days. The humidity also rises notably in September, reaching 86% versus May's 69%, making it feel more humid. For those interested in specific conditions, check out Chiang Khan weather in September for more details.

May and October offer distinctly different weather experiences. In May, temperatures can soar with a minimum of 21°C (70°F) and maximum highs reaching up to 40°C (105°F), while the average temperature hovers around 29°C (84°F). The month is characterized by high humidity at 69% and significant rainfall, with precipitation measured at 171 mm (6.7 in) over about 20 days. In contrast, October is slightly cooler, featuring a minimum temperature of 19°C (66°F) and maximum temperatures peaking at 36°C (96°F), with a comfortable average of 27°C (80°F). The humidity rises to 74%, but overall precipitation decreases to 143 mm (5.6 in) across 17 rainy days. For further details, you can check Chiang Khan weather in October.

May and November exhibit contrasting weather patterns. In May, temperatures soar with a minimum of 21°C (70°F), an average of 29°C (84°F), and a peak reaching as high as 40°C (105°F). Additionally, May experiences significant rainfall, with 171 mm (6.7 in) of precipitation spread over 20 days, contributing to a humidity level of 69%.

In contrast, November offers a more comfortable climate, with lower temperatures ranging from a minimum of 17°C (62°F) to an average of 25°C (78°F) and a maximum of 35°C (95°F). Rainfall is minimal during this month, totaling only 15 mm (0.6 in) over just 5 days, and humidity decreases to 63%. For more insights, check Chiang Khan weather in November.

May and December present contrasting weather experiences. In May, temperatures range from a minimum of 21°C (70°F) to a scorching maximum of 40°C (105°F), with an average temperature of 29°C (84°F). The month is characterized by high humidity at 69% and significant rainfall, totaling 171 mm (6.7 in) over approximately 20 days. In sharp contrast, December offers a cooler climate, with temperatures ranging from a low of 9°C (48°F) to a maximum of 34°C (93°F), averaging at 22°C (72°F). Precipitation decreases dramatically to just 10 mm (0.4 in) over only 2 days, and humidity drops to 57%. For a deeper look into the December weather specifically, visit Chiang Khan weather in December.

Compare Chiang Khan's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Chiang Khan

As May arrives in Chiang Khan, the weather showcases a blend of warmth and humidity, setting it apart from other months. With temperatures soaring to a scorching maximum of 40°C (105°F), the average feels pleasantly balmy at around 29°C (84°F). However, it comes with the trade-off of increased precipitation, averaging 171 mm over approximately 20 rainy days, which adds a lush vibrancy to the landscape. The humidity at 69% can make the air feel quite muggy, a stark contrast to the crisp and dry months preceding it. Visitors should be prepared for this tropical shift while enjoying the beauty of this charming town. For further insights on weather patterns, check out Chiang Khan Climate.