Climate Insights for Phai Sali

Amphoe Phai Sali, Changwat Nakhon Sawan, Thailand

Hottest
April
37°C peak
Coldest
January
21°C low
Wettest
September
295mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Phai Sali is hot. The average annual temperature is 28°C and approximately 1418mm of precipitation falls per year. September is the wettest month, receiving around 295mm of rainfall. Phai Sali is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, March, May. The coldest months are January, December, February, when temperatures can drop to 21°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 32° Average: 26° Min: 21° Feb Max: 34° Average: 28° Min: 22° Mar Max: 36° Average: 30° Min: 25° Apr Max: 37° Average: 31° Min: 26° May Max: 36° Average: 30° Min: 27° Jun Max: 34° Average: 30° Min: 26° Jul Max: 33° Average: 29° Min: 26° Aug Max: 33° Average: 29° Min: 26° Sep Max: 32° Average: 28° Min: 25° Oct Max: 32° Average: 28° Min: 25° Nov Max: 32° Average: 27° Min: 23° Dec Max: 31° Average: 26° Min: 21°
Max
Average
Min

Phai Sali sees moderate temperature variation throughout the year, ranging from 21°C to 37°C. April is the hottest month, with daytime highs reaching 37°C and an average of 31°C. January is the coolest month, with minimum temperatures around 21°C and an average of 26°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between February and March, with a 3°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 13mm Feb Precipitation: 18mm Mar Precipitation: 37mm Apr Precipitation: 71mm May Precipitation: 137mm Jun Precipitation: 172mm Jul Precipitation: 214mm Aug Precipitation: 263mm Sep Precipitation: 295mm Oct Precipitation: 162mm Nov Precipitation: 30mm Dec Precipitation: 6mm
Precipitation

Phai Sali is a fairly wet location, receiving approximately 1418mm of precipitation annually, which averages out to around 118mm per month. The wettest month is September, averaging 295mm of rainfall. August and July also tend to see above-average precipitation. The driest month is December, with just 6mm. That's 289mm less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 14km/h Feb Wind Speed: 14km/h Mar Wind Speed: 14km/h Apr Wind Speed: 14km/h May Wind Speed: 13km/h Jun Wind Speed: 14km/h Jul Wind Speed: 13km/h Aug Wind Speed: 13km/h Sep Wind Speed: 10km/h Oct Wind Speed: 11km/h Nov Wind Speed: 13km/h Dec Wind Speed: 15km/h
Wind Speed

Phai Sali is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

89 days until Summer

It is currently spring in Phai Sali, which began on March 20, 2026. Phai Sali is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in April at around 37°C, while the coldest stretch bottoms out in January near 21°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 25 to 37°C. Precipitation is moderate at around 245mm for the season, averaging 82mm per month. Winds are generally light, averaging 14km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 26 to 34°C. Rainfall is heavy, totalling around 649mm across the season with a monthly average of 216mm. Winds are generally light, averaging 13km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 23 to 32°C. Rainfall is heavy, totalling around 487mm across the season with a monthly average of 162mm. Winds are generally light, averaging 11km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 21 to 34°C. Precipitation is minimal, with only around 37mm for the entire season. Winds are generally light, averaging 14km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Phai Sali based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
21 °C
32 °C
14 km/h
13 mm
0 cm
Feb
22 °C
34 °C
14 km/h
18 mm
0 cm
Mar Current
25 °C
36 °C
14 km/h
37 mm
0 cm
Apr
26 °C
37 °C
14 km/h
71 mm
0 cm
May
27 °C
36 °C
13 km/h
137 mm
0 cm
Jun
26 °C
34 °C
14 km/h
172 mm
0 cm
Jul
26 °C
33 °C
13 km/h
214 mm
0 cm
Aug
26 °C
33 °C
13 km/h
263 mm
0 cm
Sep
25 °C
32 °C
10 km/h
295 mm
0 cm
Oct
25 °C
32 °C
11 km/h
162 mm
0 cm
Nov
23 °C
32 °C
13 km/h
30 mm
0 cm
Dec
21 °C
31 °C
15 km/h
6 mm
0 cm
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Metric (°C, km/h)