Yearly weather

Calculations are based on the last 8 years of historical weather data.

Weather Score #

Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.

Perfect for sun worshippers, beach lovers, and those seeking warm, dry climates for outdoor activities and relaxation.

Formula optimized for hot weather enthusiasts who prefer temperatures above 25°C (77°F) with maximum sun exposure and minimal precipitation.

Key factors in the calculation:

High temperatures: Favors locations with warm to hot daily highs
Abundant sunshine: Rewards areas with maximum daylight hours
Low precipitation: Penalizes frequent rain and wet conditions
Warm nights: Considers comfortable evening temperatures

Temperatures #

Temperatures across these Thai cities generally remain within the comfort zone throughout the year.
Nakhon Ratchasima, Chiang Mai and Khon Kaen experience slightly cooler minimum temperatures in January and December, potentially dropping just below the comfort threshold.
Chiang Mai, Nakhon Ratchasima and Khon Kaen also have the highest maximum temperatures, exceeding 36C in March and April, which may be considered uncomfortable.
Si Racha exhibits the most stable temperatures, with both the lowest maximum temperatures and highest minimum temperatures, while Chiang Mai has the widest temperature range, experiencing the lowest minimum and highest maximum.
Hat Yai has the lowest change in temperatures between seasons.

Maximum Temperatures

Period	Bangkok	Chiang Mai	Nakhon Ratchasima	Khon Kaen	Hat Yai	Chon Buri	Phatthaya	Si Racha	Nonthaburi
Jan	32.8°C	30.1°C	31.0°C	30.8°C	29.2°C	32.2°C	30.2°C	29.7°C	32.8°C
Feb	33.6°C	33.6°C	33.9°C	33.4°C	31.1°C	32.5°C	30.6°C	30.0°C	33.7°C
Mar	35.0°C	37.5°C	36.1°C	36.1°C	33.3°C	33.5°C	31.5°C	30.9°C	35.1°C
Apr	35.5°C	37.8°C	36.2°C	36.7°C	33.3°C	34.1°C	32.4°C	31.9°C	35.6°C
May	34.8°C	35.5°C	34.4°C	34.8°C	32.4°C	33.4°C	32.1°C	31.6°C	34.8°C
Jun	33.5°C	32.0°C	33.2°C	33.5°C	31.7°C	32.4°C	31.3°C	30.7°C	33.5°C
Jul	32.0°C	31.0°C	31.5°C	31.9°C	31.3°C	31.2°C	30.5°C	29.8°C	32.0°C
Aug	32.3°C	29.7°C	31.2°C	31.4°C	31.5°C	31.2°C	30.4°C	29.6°C	32.2°C
Sep	31.8°C	30.4°C	30.4°C	30.9°C	30.5°C	30.8°C	30.0°C	29.6°C	31.8°C
Oct	31.3°C	30.0°C	29.3°C	30.1°C	30.3°C	30.7°C	29.8°C	29.6°C	31.2°C
Nov	31.7°C	30.0°C	29.0°C	30.3°C	28.8°C	31.0°C	30.0°C	29.7°C	31.6°C
Dec	31.8°C	28.9°C	29.0°C	29.4°C	28.4°C	31.3°C	29.9°C	29.6°C	31.7°C
Average	33.0°C	32.2°C	32.0°C	31.0°C	32.4°C	32.1°C	33.0°C	30.7°C	30.2°C

Minimum Temperatures

Period	Bangkok	Chiang Mai	Nakhon Ratchasima	Khon Kaen	Hat Yai	Chon Buri	Phatthaya	Si Racha	Nonthaburi
Jan	24.5°C	16.7°C	19.4°C	18.7°C	22.3°C	23.6°C	24.4°C	24.8°C	24.3°C
Feb	25.7°C	18.5°C	22.1°C	21.2°C	22.2°C	25.1°C	25.6°C	25.8°C	25.6°C
Mar	27.5°C	22.3°C	25.0°C	24.8°C	22.9°C	26.7°C	26.9°C	27.3°C	27.4°C
Apr	28.3°C	24.7°C	26.1°C	26.7°C	24.0°C	27.5°C	27.8°C	28.1°C	28.2°C
May	28.4°C	24.7°C	26.1°C	26.7°C	24.6°C	27.8°C	28.0°C	28.3°C	28.3°C
Jun	27.6°C	23.7°C	25.1°C	26.0°C	24.0°C	27.4°C	27.4°C	27.8°C	27.6°C
Jul	26.8°C	23.2°C	24.5°C	25.3°C	23.8°C	26.8°C	26.9°C	27.3°C	26.7°C
Aug	26.7°C	22.7°C	24.3°C	24.7°C	23.8°C	26.6°C	26.9°C	27.3°C	26.6°C
Sep	26.1°C	22.5°C	23.8°C	24.2°C	23.6°C	26.0°C	26.6°C	26.9°C	26.0°C
Oct	25.5°C	21.4°C	22.4°C	22.6°C	23.7°C	25.1°C	25.8°C	26.2°C	25.4°C
Nov	24.9°C	19.8°C	20.9°C	21.4°C	23.3°C	24.2°C	25.2°C	25.7°C	24.7°C
Dec	23.9°C	17.5°C	19.1°C	18.8°C	22.8°C	23.1°C	24.0°C	24.4°C	23.8°C
Average	26.3°C	21.5°C	25.8°C	23.4°C	23.4°C	23.2°C	26.2°C	26.3°C	26.7°C

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions #

Chiang Mai consistently receives the highest total sun hours throughout the year, with peaks of around 10 hours in January and February, indicating a sunny climate compared to other cities. In contrast, Nakhon Ratchasima experiences a significant drop in sun hours during the rainy season, particularly in September, where it records just 0.4 hours alongside a substantial increase in precipitation.
When analyzing precipitation levels, Hat Yai shows an increase towards the end of the year, peaking in November with 14.72mm, indicating a shift towards more rainfall. Meanwhile, both Phatthaya and Si Racha also show notable rainfall in the later months, but to a lesser extent than Hat Yai, suggesting they have drier climates comparatively.

Sunny Weather

Period	Bangkok	Chiang Mai	Nakhon Ratchasima	Khon Kaen	Hat Yai	Chon Buri	Phatthaya	Si Racha	Nonthaburi
Jan	8.5 hours/day	9.6 hours/day	8.8 hours/day	8.7 hours/day	3.0 hours/day	8.5 hours/day	8.2 hours/day	8.5 hours/day	8.5 hours/day
Feb	8.3 hours/day	10.7 hours/day	8.2 hours/day	8.8 hours/day	5.7 hours/day	7.4 hours/day	7.4 hours/day	7.7 hours/day	8.3 hours/day
Mar	8.8 hours/day	10.7 hours/day	6.4 hours/day	6.9 hours/day	6.8 hours/day	6.5 hours/day	7.4 hours/day	7.6 hours/day	8.7 hours/day
Apr	7.8 hours/day	9.0 hours/day	5.6 hours/day	6.2 hours/day	4.5 hours/day	6.4 hours/day	7.2 hours/day	6.9 hours/day	7.8 hours/day
May	4.6 hours/day	5.2 hours/day	3.2 hours/day	3.3 hours/day	2.1 hours/day	4.1 hours/day	4.9 hours/day	4.6 hours/day	4.5 hours/day
Jun	2.3 hours/day	1.5 hours/day	2.6 hours/day	2.4 hours/day	2.1 hours/day	2.9 hours/day	3.7 hours/day	3.6 hours/day	2.3 hours/day
Jul	1.2 hours/day	0.9 hours/day	1.2 hours/day	1.2 hours/day	2.2 hours/day	1.4 hours/day	1.9 hours/day	1.8 hours/day	1.2 hours/day
Aug	1.3 hours/day	0.4 hours/day	1.4 hours/day	1.0 hours/day	2.2 hours/day	1.8 hours/day	2.4 hours/day	2.2 hours/day	1.2 hours/day
Sep	1.3 hours/day	1.8 hours/day	1.0 hours/day	1.3 hours/day	1.1 hours/day	1.4 hours/day	1.9 hours/day	2.0 hours/day	1.3 hours/day
Oct	1.9 hours/day	2.6 hours/day	1.9 hours/day	2.6 hours/day	1.3 hours/day	2.4 hours/day	2.8 hours/day	3.0 hours/day	1.9 hours/day
Nov	3.8 hours/day	4.8 hours/day	3.7 hours/day	5.0 hours/day	0.6 hours/day	4.4 hours/day	4.4 hours/day	4.9 hours/day	3.9 hours/day
Dec	6.1 hours/day	7.0 hours/day	6.6 hours/day	7.5 hours/day	1.3 hours/day	6.8 hours/day	7.1 hours/day	7.2 hours/day	6.2 hours/day
Average	4.7 hours/day	5.3 hours/day	4.5 hours/day	2.7 hours/day	4.6 hours/day	4.2 hours/day	4.6 hours/day	4.9 hours/day	5.0 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Period	Bangkok	Chiang Mai	Nakhon Ratchasima	Khon Kaen	Hat Yai	Chon Buri	Phatthaya	Si Racha	Nonthaburi
Jan	0.6mm	0.3mm	0.1mm	0.1mm	3.9mm	0.6mm	0.9mm	0.7mm	0.5mm
Feb	0.9mm	0.3mm	0.3mm	0.4mm	2.1mm	1.2mm	1.1mm	1.0mm	0.9mm
Mar	1.2mm	0.5mm	1.3mm	1.1mm	2.4mm	1.8mm	1.3mm	1.4mm	1.3mm
Apr	2.8mm	2.0mm	2.9mm	2.0mm	5.5mm	3.2mm	2.3mm	2.9mm	2.8mm
May	5.0mm	5.2mm	6.1mm	6.0mm	7.0mm	5.3mm	5.3mm	5.5mm	5.2mm
Jun	3.6mm	4.8mm	4.1mm	4.8mm	4.4mm	4.4mm	4.5mm	4.7mm	3.7mm
Jul	5.2mm	6.4mm	6.7mm	7.6mm	4.0mm	5.8mm	5.0mm	6.1mm	5.3mm
Aug	5.2mm	8.8mm	6.4mm	7.1mm	5.0mm	5.4mm	4.7mm	5.6mm	5.2mm
Sep	8.8mm	8.2mm	10.2mm	9.1mm	7.2mm	8.5mm	8.2mm	9.3mm	8.9mm
Oct	9.2mm	6.6mm	6.8mm	5.4mm	9.8mm	8.0mm	9.4mm	9.0mm	9.2mm
Nov	2.7mm	1.9mm	1.5mm	1.0mm	16.0mm	2.5mm	3.4mm	2.9mm	2.6mm
Dec	0.6mm	0.5mm	0.2mm	0.1mm	10.2mm	0.6mm	0.9mm	0.7mm	0.6mm
Average	3.8mm	3.8mm	3.9mm	6.5mm	3.7mm	3.9mm	3.9mm	3.9mm	4.2mm

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Period	Bangkok	Chiang Mai	Nakhon Ratchasima	Khon Kaen	Hat Yai	Chon Buri	Phatthaya	Si Racha	Nonthaburi
Jan	14.2km/h	6.8km/h	15.4km/h	15.2km/h	17.0km/h	16.6km/h	18.9km/h	19.2km/h	14.0km/h
Feb	17.5km/h	8.0km/h	14.7km/h	16.1km/h	18.3km/h	18.3km/h	19.7km/h	21.4km/h	17.4km/h
Mar	20.7km/h	9.6km/h	15.5km/h	16.5km/h	15.8km/h	19.4km/h	21.1km/h	24.0km/h	20.6km/h
Apr	19.7km/h	9.3km/h	15.1km/h	16.1km/h	11.5km/h	18.0km/h	19.9km/h	22.1km/h	19.6km/h
May	17.8km/h	8.8km/h	14.4km/h	14.6km/h	10.2km/h	16.5km/h	19.0km/h	20.8km/h	17.7km/h
Jun	18.2km/h	8.2km/h	18.1km/h	17.0km/h	10.7km/h	18.2km/h	21.9km/h	22.4km/h	18.1km/h
Jul	17.5km/h	7.1km/h	18.7km/h	16.4km/h	11.9km/h	18.2km/h	22.4km/h	22.3km/h	17.5km/h
Aug	17.0km/h	6.3km/h	17.5km/h	15.9km/h	13.0km/h	17.5km/h	21.6km/h	21.7km/h	16.8km/h
Sep	14.5km/h	5.9km/h	13.4km/h	12.2km/h	12.0km/h	14.6km/h	18.8km/h	19.1km/h	14.4km/h
Oct	11.9km/h	5.7km/h	13.7km/h	13.8km/h	9.9km/h	12.7km/h	15.4km/h	15.9km/h	11.7km/h
Nov	12.7km/h	5.4km/h	16.1km/h	15.1km/h	11.6km/h	14.7km/h	18.2km/h	18.2km/h	12.5km/h
Dec	13.4km/h	5.9km/h	17.8km/h	16.2km/h	15.4km/h	16.9km/h	20.7km/h	20.1km/h	13.2km/h
Average	16.3km/h	7.3km/h	16.8km/h	13.1km/h	15.4km/h	15.9km/h	16.1km/h	19.8km/h	20.6km/h

Humidity

Period	Bangkok	Chiang Mai	Nakhon Ratchasima	Khon Kaen	Hat Yai	Chon Buri	Phatthaya	Si Racha	Nonthaburi
Jan	48.4%	53.5%	50.2%	50.2%	83.7%	55.8%	65.4%	65.6%	48.6%
Feb	55.7%	39.1%	45.8%	44.8%	78.7%	61.7%	70.5%	70.9%	55.6%
Mar	58.5%	33.7%	47.2%	43.3%	76.5%	64.3%	72.5%	73.1%	58.3%
Apr	56.9%	42.4%	51.3%	45.5%	77.9%	62.8%	70.7%	70.7%	56.6%
May	59.4%	61.5%	61.9%	57.7%	80.4%	66.2%	73.0%	71.6%	59.5%
Jun	61.3%	75.1%	68.6%	66.4%	80.7%	68.3%	75.0%	72.6%	61.5%
Jul	67.3%	80.2%	74.7%	73.1%	81.4%	71.6%	76.5%	74.3%	67.6%
Aug	67.0%	84.7%	77.0%	76.5%	79.9%	71.3%	76.8%	74.5%	67.4%
Sep	71.1%	82.9%	81.4%	79.1%	82.3%	74.0%	77.2%	75.1%	71.6%
Oct	72.4%	81.9%	81.9%	76.2%	83.6%	74.6%	77.4%	74.9%	72.9%
Nov	65.1%	76.3%	75.0%	65.7%	87.9%	69.3%	73.6%	71.4%	65.6%
Dec	53.1%	69.5%	62.2%	57.6%	86.8%	58.6%	66.4%	65.1%	53.6%
Average	61.4%	65.1%	66.5%	81.6%	61.3%	64.8%	61.6%	72.9%	71.6%

Daylight Hours #

In examining the sunrise and sunset times along with day lengths of the cities mentioned, Chiang Mai stands out with the longest day duration at 13 hours and 14 minutes in June, significantly longer than other cities like Hat Yai, which has a maximum of 12 hours and 31 minutes. Additionally, Khon Kaen records the earliest sunrise at 5:36 AM in June, while Bangkok, Nakhon Ratchasima, and others consistently show latest sunrise times around 6:40 AM in January.
Among the cities, Nakhon Ratchasima and Si Racha experience the latest sunset times, both reaching 18:46 in July, which is indicative of the minimal variability in sunset times compared to sunrise. Overall, all cities exhibit similar seasonal patterns in sunrise and sunset timings, with early sunrises and longer days peaking in June and progressively shorter days towards the end of the year.

Sunrise Time

Period	Bangkok	Chiang Mai	Nakhon Ratchasima	Khon Kaen	Hat Yai	Chon Buri	Phatthaya	Si Racha	Nonthaburi
Jan	6:44	6:59	6:40	6:40	6:34	6:42	6:42	6:42	6:45
Feb	6:41	6:52	6:35	6:34	6:35	6:38	6:38	6:38	6:41
Mar	6:25	6:31	6:19	6:16	6:24	6:23	6:23	6:23	6:25
Apr	6:05	6:07	5:58	5:54	6:10	6:04	6:04	6:04	6:05
May	5:52	5:50	5:44	5:39	6:02	5:50	5:52	5:51	5:52
Jun	5:51	5:47	5:43	5:37	6:03	5:50	5:51	5:50	5:51
Jul	5:58	5:56	5:50	5:44	6:09	5:57	5:58	5:58	5:58
Aug	6:05	6:05	5:57	5:53	6:12	6:03	6:04	6:04	6:05
Sep	6:07	6:11	6:00	5:57	6:08	6:05	6:05	6:05	6:07
Oct	6:09	6:19	6:04	6:02	6:05	6:07	6:07	6:07	6:09
Nov	6:18	6:31	6:13	6:13	6:09	6:16	6:15	6:16	6:18
Dec	6:34	6:49	6:29	6:29	6:22	6:31	6:31	6:31	6:34
Average	6:12	6:18	6:12	6:12	6:06	6:06	6:12	6:12	6:12

Sunrise times are output in the local timezone of each place.

Sunset Time

Period	Bangkok	Chiang Mai	Nakhon Ratchasima	Khon Kaen	Hat Yai	Chon Buri	Phatthaya	Si Racha	Nonthaburi
Jan	18:10	18:08	18:01	17:56	18:20	18:08	18:10	18:09	18:10
Feb	18:22	18:24	18:15	18:11	18:29	18:21	18:22	18:22	18:23
Mar	18:28	18:34	18:22	18:19	18:29	18:26	18:26	18:26	18:28
Apr	18:31	18:41	18:26	18:24	18:26	18:29	18:29	18:29	18:31
May	18:37	18:52	18:33	18:32	18:28	18:35	18:35	18:35	18:38
Jun	18:46	19:02	18:42	18:42	18:34	18:44	18:43	18:43	18:46
Jul	18:49	19:04	18:44	18:44	18:38	18:46	18:46	18:46	18:49
Aug	18:39	18:50	18:34	18:32	18:32	18:37	18:37	18:37	18:39
Sep	18:19	18:26	18:13	18:10	18:17	18:17	18:17	18:17	18:19
Oct	17:59	18:01	17:52	17:47	18:03	17:57	17:58	17:57	17:59
Nov	17:48	17:47	17:40	17:35	17:58	17:47	17:48	17:47	17:48
Dec	17:54	17:50	17:45	17:40	18:05	17:53	17:54	17:53	17:53
Average	18:24	18:30	18:18	18:24	18:12	18:18	18:24	18:18	18:18

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	Bangkok	Chiang Mai	Nakhon Ratchasima	Khon Kaen	Hat Yai	Chon Buri	Phatthaya	Si Racha	Nonthaburi
Jan	11:10 hours	11:08 hours	11:01 hours	10:56 hours	11:20 hours	11:08 hours	11:10 hours	11:09 hours	11:10 hours
Feb	11:22 hours	11:24 hours	11:15 hours	11:11 hours	11:29 hours	11:21 hours	11:22 hours	11:22 hours	11:23 hours
Mar	11:28 hours	11:34 hours	11:22 hours	11:19 hours	11:29 hours	11:26 hours	11:26 hours	11:26 hours	11:28 hours
Apr	11:31 hours	11:41 hours	11:26 hours	11:24 hours	11:26 hours	11:29 hours	11:29 hours	11:29 hours	11:31 hours
May	11:37 hours	11:52 hours	11:33 hours	11:32 hours	11:28 hours	11:35 hours	11:35 hours	11:35 hours	11:38 hours
Jun	11:46 hours	12:02 hours	11:42 hours	11:42 hours	11:34 hours	11:44 hours	11:43 hours	11:43 hours	11:46 hours
Jul	11:49 hours	12:04 hours	11:44 hours	11:44 hours	11:38 hours	11:46 hours	11:46 hours	11:46 hours	11:49 hours
Aug	11:39 hours	11:50 hours	11:34 hours	11:32 hours	11:32 hours	11:37 hours	11:37 hours	11:37 hours	11:39 hours
Sep	11:19 hours	11:26 hours	11:13 hours	11:10 hours	11:17 hours	11:17 hours	11:17 hours	11:17 hours	11:19 hours
Oct	10:59 hours	11:01 hours	10:52 hours	10:47 hours	11:03 hours	10:57 hours	10:58 hours	10:57 hours	10:59 hours
Nov	10:48 hours	10:47 hours	10:40 hours	10:35 hours	10:58 hours	10:47 hours	10:48 hours	10:47 hours	10:48 hours
Dec	10:54 hours	10:50 hours	10:45 hours	10:40 hours	11:05 hours	10:53 hours	10:54 hours	10:53 hours	10:53 hours
Average	11:24 hours	11:30 hours	11:18 hours	11:24 hours	11:12 hours	11:18 hours	11:24 hours	11:18 hours	11:18 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

Share comparison

Was this page helpful?