Climate Insights for Tinian International Airport

Tinian Municipality, Northern Mariana Islands

Hottest
July
29°C peak
Coldest
February
26°C low
Wettest
August
393mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Tinian International Airport is hot. The average annual temperature is 27°C and approximately 2002mm of precipitation falls per year. Tinian International Airport receives a notable amount of rainfall throughout the year, including during its driest month. Tinian International Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are February, March, January, when temperatures can drop to 26°C.

Temperature

0° 5° 10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 27° Average: 27° Min: 26° Feb Max: 27° Average: 26° Min: 26° Mar Max: 27° Average: 27° Min: 26° Apr Max: 28° Average: 27° Min: 26° May Max: 28° Average: 28° Min: 27° Jun Max: 29° Average: 28° Min: 27° Jul Max: 29° Average: 28° Min: 27° Aug Max: 29° Average: 28° Min: 27° Sep Max: 29° Average: 28° Min: 27° Oct Max: 29° Average: 28° Min: 27° Nov Max: 29° Average: 28° Min: 27° Dec Max: 28° Average: 28° Min: 27°
Max
Average
Min

Tinian International Airport has relatively stable temperatures year-round, staying within a 3°C range. The warmest month is July, when average highs reach 29°C and the mean temperature sits around 28°C. February is the coolest month, with minimum temperatures around 26°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 80mm Feb Precipitation: 48mm Mar Precipitation: 47mm Apr Precipitation: 56mm May Precipitation: 63mm Jun Precipitation: 117mm Jul Precipitation: 274mm Aug Precipitation: 393mm Sep Precipitation: 356mm Oct Precipitation: 354mm Nov Precipitation: 136mm Dec Precipitation: 76mm
Precipitation

Tinian International Airport is a very wet location, receiving approximately 2002mm of precipitation annually, which averages out to around 167mm per month. The wettest month is August, averaging 393mm of rainfall. September and October also tend to see above-average precipitation. The driest month is March, with just 47mm. That's 346mm less than August, 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 20km/h 25km/h 30km/h 35km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 30km/h Feb Wind Speed: 31km/h Mar Wind Speed: 26km/h Apr Wind Speed: 26km/h May Wind Speed: 23km/h Jun Wind Speed: 21km/h Jul Wind Speed: 21km/h Aug Wind Speed: 19km/h Sep Wind Speed: 20km/h Oct Wind Speed: 22km/h Nov Wind Speed: 27km/h Dec Wind Speed: 30km/h
Wind Speed

Tinian International Airport is moderately windy, with an average annual wind speed of 25km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 31km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in August, with average winds dropping to 19km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 12km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 30km/h in winter, 25km/h in spring, 20km/h in summer, 23km/h in autumn.

Seasons

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

89 days until Winter

It is currently autumn in Tinian International Airport, which began on September 23, 2026. Tinian International Airport 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 July at around 29°C, while the coldest stretch bottoms out in February near 26°C. Winter is next, beginning on December 21, 2026 (89 days from now).

Spring

Temperatures range from 26 to 28°C. Precipitation is moderate at around 166mm for the season, averaging 55mm per month. Winds are moderate at around 25km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.

Summer

Temperatures range from 27 to 29°C. Rainfall is heavy, totalling around 784mm across the season with a monthly average of 261mm. Winds are moderate at around 20km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 27 to 29°C. Rainfall is heavy, totalling around 846mm across the season with a monthly average of 282mm. Winds are moderate at around 23km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 26 to 28°C. Precipitation is moderate at around 205mm for the season, averaging 68mm per month. Winds are strong, averaging 30km/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 Tinian International Airport 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
26 °C
27 °C
30 km/h
80 mm
0 cm
Feb
26 °C
27 °C
31 km/h
48 mm
0 cm
Mar
26 °C
27 °C
26 km/h
47 mm
0 cm
Apr
26 °C
28 °C
26 km/h
56 mm
0 cm
May
27 °C
28 °C
23 km/h
63 mm
0 cm
Jun
27 °C
29 °C
21 km/h
117 mm
0 cm
Jul
27 °C
29 °C
21 km/h
274 mm
0 cm
Aug
27 °C
29 °C
19 km/h
393 mm
0 cm
Sep Current
27 °C
29 °C
20 km/h
356 mm
0 cm
Oct
27 °C
29 °C
22 km/h
354 mm
0 cm
Nov
27 °C
29 °C
27 km/h
136 mm
0 cm
Dec
27 °C
28 °C
30 km/h
76 mm
0 cm
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Metric (°C, km/h)