Weather data information for Chumphon, Gulf of Thailand

Climate table for Chumphon - Southern Thailand - Gulf of Thailand. Information provided by Thailand Meterological Department.

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	All
Mean temperature (^oC)
Daily	25.4	26.4	27.6	28.5	28.0	27.4	27.0	26.9	26.8	26.5	25.9	25.1	26.8
Morning Mininum	20.9	21.8	22.8	24.1	24.4	24.3	24.0	24.0	23.9	23.5	22.7	21.1	23.1
Extreme Min	12.1	14.4	17.0	19.4	21.2	21.9	19.9	21.3	21.6	18.8	15.1	12.2	12.1
Afternoon Maximun	30.6	31.8	33.2	34.2	33.3	31.9	31.6	31.3	31.4	31.0	30.0	29.8	31.7
Extreme Max	34.8	36.4	38.0	38.8	38.2	36.2	35.4	35.6	34.8	35.2	34.5	33.8	38.8
Mean relative humidity(%)
at 0700 am.	94	94	93	93	93	93	93	93	94	95	94	91	93
at 0100 pm.	63	62	58	59	65	68	68	69	70	71	71	64	66
Surface wind
Mean Speed (km./hr.)	5.2	5.0	5.2	4.6	4.6	5.4	5.4	5.6	4.6	3.3	5.0	6.5	5.0
Direction	east	east	east	east	west	west	west	west	west	west	northeast	northeast	west
Mean rainfall
Amount (mm./month)	74.7	59.6	67.9	80.1	174.0	173.8	177.0	217.5	168.0	250.8	340.9	98.7	1883.0
Rainy Day (day/month)	7.0	5.1	5.4	7.7	17.0	20.0	20.5	21.6	19.4	19.7	14.7	7.7	165.8
Heavy Rainy Day (day/month) Greater Than 35 mm./day	0.4	0.3	0.9	0.5	1.1	0.9	0.7	1.1	0.7	1.9	2.9	0.9	11.9
Visibility (km.)
Time 07.00	5.6	6.0	6.2	7.7	9.7	10.1	10.0	9.9	10.2	8.9	7.7	7.1	8.3
Daily	9.4	9.7	9.7	10.1	11.1	11.0	11.0	10.8	11.1	10.6	9.8	9.7	10.3
Mean sunshine duration
Daily	-	-	-	-	-	-	-	-	-	-	-	-	-