Ranong, Thailand climate

Am Tropical monsoon

Ranong has a remarkably steady tropical climate (Tropical monsoon, Köppen Am). The hottest month is April with an average daily high near 94°F, while the coldest is December averaging around 73°F at night. Precipitation totals about 156 inches a year and is strongly seasonal — August alone averages 28.4 inches while February barely receives 0.85 inches.

☀️ All year

Hot

Daytime highs near 94°F most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 73°F.

🌧️ Rain

Very wet

About 156 in of rain a year.

Wettest in August

⛅ Sky & trend

Often grey

Overcast skies dominate much of the year.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Ranong climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	91	93	94	94	91	89	88	87	87	88	89	89
Avg temp (°F)	81	83	84	85	84	82	82	81	81	81	81	81
Avg low (°F)	72	72	74	76	77	76	76	76	75	74	74	73
Precipitation (in)	1.6	0.9	2.7	5.3	17.6	22.9	27.1	28.4	26.5	15.4	5.1	2.6

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	91	93	94	94	91	89
Avg temp (°F)	81	83	84	85	84	82
Avg low (°F)	72	72	74	76	77	76
Precipitation (in)	1.6	0.9	2.7	5.3	17.6	22.9

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	88	87	87	88	89	89
Avg temp (°F)	82	81	81	81	81	81
Avg low (°F)	76	76	75	74	74	73
Precipitation (in)	27.1	28.4	26.5	15.4	5.1	2.6

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	55	48	52	68	86	89	89	89	91	86	78	68
Relative humidity (%)	85	81	77	77	86	91	91	91	92	91	90	87
Wind speed (mph)	1.6	1.5	1.4	1.3	1.5	1.7	1.8	1.9	1.7	1.4	1.6	1.7

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	55	48	52	68	86	89
Relative humidity (%)	85	81	77	77	86	91
Wind speed (mph)	1.6	1.5	1.4	1.3	1.5	1.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	89	89	91	86	78	68
Relative humidity (%)	91	91	92	91	90	87
Wind speed (mph)	1.8	1.9	1.7	1.4	1.6	1.7

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Ranong, a weather station, about 22 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →