Phak Hai in Summer

In summer (June, July and August), Phak Hai sees average daytime highs around 35°C and overnight lows near 27°C, with 419 mm of rain over about 67 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.

Across summer, daytime highs hold fairly steady around 35°C. The sky is clear or mostly clear about 2% of the time across summer, and the air most often feels oppressive.

Summer is Phak Hai's 3rd-best season to visit on our travel score. For the whole year in context, see Phak Hai's year-round climate.

Avg daytime high: 35°C; 2nd-warmest season
Avg overnight low: 27°C
Rainfall: 419 mm; 67 wet days
Avg wind: 10 km/h
Travel score: 1.8; 3rd-best season
Months: Jun · Jul · Aug

← Spring Phak Hai year-round climate Fall →

Spring Summer Fall Winter

Temperature in Phak Hai in Summer

Average highAverage lowShaded bands: 10–90% of days

Across summer, daytime highs hold fairly steady around 35°C.

A typical summer day in Phak Hai reaches about 35°C and drops to 27°C overnight. The warmest of the three months is June, the coolest August.

How summer really feels in Phak Hai

Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C

92 feel dangerously hot (≥ 39°C)

Days feeling ≤ 0°C

wind chill below the day's low

The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Phak Hai weather by month

How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	33° / 22°	13	2.8	11.2	4.2
Feb	35° / 24°	14	3.2	11.5	3.2
Mar	36° / 26°	43	7.5	11.9	2.1
Apr	37° / 27°	84	13.7	12.3	1.3
May	36° / 27°	154	21.1	12.7	1.4
Jun	35° / 27°	129	21.6	12.8	1.6
Jul	34° / 27°	134	22.6	12.8	1.9
Aug	34° / 26°	157	22.9	12.5	1.9
Sep	33° / 26°	253	25.2	12.1	2.0
Oct	33° / 25°	168	19.3	11.7	2.8
Nov	33° / 24°	35	5.9	11.3	3.8
Dec	32° / 22°	10	1.7	11.2	4.6

Cloud cover in Summer

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time across summer.

Chance of precipitation in Summer

Any precipitation

Phak Hai gets around 419 mm of rain over 67 wet days across summer. The line is the day-by-day chance of measurable precipitation.

Humidity in Summer

DryComfortableHumidMuggyOppressiveMiserable

Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

Wind in Summer

Winds average 10 km/h across summer.

Sunrise & sunset in Summer

DaylightNight

Daylight runs from about 12 h 48 min in early June to 12 h 18 min by late August. The lit band spans sunrise to sunset each day.

Solar energy in Summer

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across summer, about 4.9 kWh/m².

Planning a trip in summer

Hazard calendar for Phak Hai

In seasonPeak

In summer, Phak Hai overlaps its rainy season season. The full year is below, with each hazard's peak months called out.

Phak Hai's rainy season runs May–October, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is summer a good time to visit Phak Hai?

Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

1.8

Sightseeing

3rd-best month of the year

3.8

Beach & pool

4th-best month of the year

summer is a weaker month for outdoor sightseeing in Phak Hai.

What to pack for Phak Hai in Summer

From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In summer, Phak Hai sees daytime highs around 35°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 67 days see rain.

light clothesrain gearsun protection

UV index in Phak Hai in Summer

LowModerateHighVery highExtreme

Clear-sky midday UV across summer averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Phak Hai peaks around August 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 8 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	9	9	12	11	11	12	12	13	12	10	8	8
Level	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Very high

	UV index (midday)	Level
Jan	9	Very high
Feb	9	Very high
Mar	12	Extreme
Apr	11	Extreme
May	11	Extreme
Jun	12	Extreme
Jul	12	Extreme
Aug	13	Extreme
Sep	12	Extreme
Oct	10	Very high
Nov	8	Very high
Dec	8	Very high

Air quality in Phak Hai in Summer

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.

Air quality in Phak Hai is worst in January — around 83 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (July, 43 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	83	81	70	64	54	44	43	43	54	66	67	66
Level	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Poor	Poor	Poor	Poor	Poor	Unhealthy	Unhealthy	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	83	Unhealthy
Feb	81	Unhealthy
Mar	70	Unhealthy
Apr	64	Unhealthy
May	54	Poor
Jun	44	Poor
Jul	43	Poor
Aug	43	Poor
Sep	54	Poor
Oct	66	Unhealthy
Nov	67	Unhealthy
Dec	66	Unhealthy

Location & terrain

Where is Phak Hai?

Phak Hai sits at 14.5°N, 100.4°E, 11 m above sea level, in Thailand. The nearest listed city is Bang Ban, 15 km away.

Topography around Phak Hai

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Phak Hai.

Within 3 km, the terrain around Phak Hai has only modest variations in elevation — a maximum elevation change of 11 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 27 m; within 80 km, large variations in elevation — a maximum elevation change of 642 m.

The land around Phak Hai is covered by cropland (70%) within 3 km, cropland (69%) within 16 km, and cropland (66%) within 80 km.

3 km

11 m

cropland 70%

16 km

27 m

cropland 69%

80 km

642 m

cropland 66%

treesgrasslandcroplandartificial surfacesbare terrainwater

← Spring Phak Hai year-round climate Fall →

Summer weather nearby: Bang Ban 15 km · Wiset Chaichan 16 km · Ayutthaya 25 km · Nakhon Luang 26 km · Suphan Buri 27 km · Bang Pa-in 34 km · Tha Ruea 40 km · Ban Mo 42 km

Thailand travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type A / B / C; 230 V · 50 Hz
Prices: ≈ 31% of US; price level, 2025
GDP per capita: $8,057; 2025
Happiness: 6.3 / 10; World Happiness, 2025
Homicide rate: 4.8; per 100k, 2011
Road deaths: 32.2; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Very low; EF EPI 402
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Phak Hai (14.4568°, 100.37°, elevation 11 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.