Weather in Hua Hin in July
Thailand · 20-year averages, July
A hard month. July asks something of you. Go in knowing what. You should expect rain on 27 days of the month, which is more days wet than dry.
July ranks 9 of 12 in Hua Hin: past the worst of the year but short of December, which is the month to book if the dates are open.
Rain on 27 of the month's 31 days, 5 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Pack for 30.7 °C days and 26.1 °C nights; the spread matters more here than any single number.
What the averages hide
Averages flatten a month, and this one hides a few things: 22 days top 30 °C, making the heat continuous rather than occasional; the day barely swings — 4.7 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest July day reached 34.5 °C and the coldest night fell to 24.7 °C, and the wettest single day dropped 62 mm — roughly 35% of the month's rain in one day.
July is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest July on record still delivered 322 mm against 87 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 179 mm average is a reasonable planning figure, not a promise.
Wind is light at 12.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 81%, high enough to notice on the warm days without dominating them.
How July sits in the year
Temperatures hold steady either side: 31.2 °C in June, 30.7 here, 30.7 in August. Nothing about the timing within the month matters much.
Daylight in July
Hua Hin sits close enough to the equator that daylight barely moves all year — 12.8 hours in July, against a range of just 1.5 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.
Sea temperature
The sea sits at about 29.4 °C in July — warm enough that the water offers no relief from the heat. The sea peaks at 30.5 °C in May and bottoms out at 27.8 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.
How busy it gets
Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
July in Hua Hin versus nearby
If Hua Hin is one option among several, the nearby comparison is worth making. Bangkok is close enough to be a coin toss — within a degree on temperature, 3 days less rain. Lat Krabang is close enough to be a coin toss — within a degree on temperature, 3 days less rain.
So: July is a compromise. December is 38 points better and is what Hua Hin is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Hua Hin
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 28.8 | 23.4 | 6 | 35 | 74 | 11.5 | 27.8 | 81 |
| February | 30.5 | 24.3 | 4 | 15 | 74 | 11.7 | 28.1 | 78 |
| March | 31.8 | 25.7 | 10 | 61 | 74 | 12 | 28.9 | 61 |
| April | 32.9 | 27.1 | 14 | 69 | 73 | 12.4 | 30 | 50 |
| May | 32.1 | 27.3 | 27 | 157 | 77 | 12.7 | 30.5 | 42 |
| June | 31.2 | 26.5 | 27 | 167 | 80 | 12.9 | 29.8 | 46 |
| July | 30.7 | 26.1 | 27 | 179 | 81 | 12.8 | 29.4 | 47 |
| August | 30.7 | 26 | 29 | 160 | 81 | 12.6 | 29.1 | 47 |
| September | 30 | 25.9 | 28 | 212 | 82 | 12.2 | 29.1 | 50 |
| October | 29.1 | 26 | 27 | 254 | 83 | 11.9 | 29.3 | 53 |
| November | 28.7 | 25.2 | 15 | 93 | 80 | 11.6 | 29.2 | 66 |
| December | 28.2 | 23.6 | 6 | 27 | 76 | 11.4 | 28.4 | 85 |
See all twelve months in Hua Hin, or where else to go in July.
Planning the rest of the trip
- Flight time to Hua Hin how long you are actually in the air
- Hua Hin time zone and the difference from home
- Days until your trip count down to the departure date