Climate Insights for Tinian International Airport

, Tinian Municipality, Northern Mariana Islands

Hottest
July
29°C peak
Coldest
February
26°C low
Wettest
August
407mm 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 1956mm 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, September, August. The coldest months are February, March, January, when temperatures can drop to 26°C.

Temperature

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: 28° Average: 28° Min: 27° Nov Max: 28° Average: 28° Min: 27° Dec Max: 28° Average: 27° 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 450mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 88mm Feb Precipitation: 40mm Mar Precipitation: 47mm Apr Precipitation: 49mm May Precipitation: 73mm Jun Precipitation: 100mm Jul Precipitation: 241mm Aug Precipitation: 407mm Sep Precipitation: 340mm Oct Precipitation: 380mm Nov Precipitation: 125mm Dec Precipitation: 67mm
Precipitation

Tinian International Airport is a fairly wet location, receiving approximately 1956mm of precipitation annually, which averages out to around 163mm per month. The wettest month is August, averaging 407mm of rainfall. October and September also tend to see above-average precipitation. The driest month is February, with just 40mm. That's 368mm 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 40km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 35km/h Feb Wind Speed: 36km/h Mar Wind Speed: 31km/h Apr Wind Speed: 30km/h May Wind Speed: 28km/h Jun Wind Speed: 26km/h Jul Wind Speed: 26km/h Aug Wind Speed: 26km/h Sep Wind Speed: 26km/h Oct Wind Speed: 29km/h Nov Wind Speed: 32km/h Dec Wind Speed: 35km/h
Wind Speed

Tinian International Airport is moderately windy, with an average annual wind speed of 30km/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 36km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in July, with average winds dropping to 26km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 10km/h 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 35km/h in winter, 30km/h in spring, 26km/h in summer, 29km/h in autumn.

Seasons

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

90 days until Summer

It is currently spring in Tinian International Airport, which began on March 20, 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. Summer is next, beginning on June 21, 2026 — 90 days from now.

Spring

Temperatures range from 26 to 28°C. Precipitation is moderate at around 168mm for the season, averaging 56mm per month. Winds are strong, averaging 30km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 27 to 29°C. Rainfall is heavy, totalling around 749mm across the season with a monthly average of 250mm. Winds are strong, averaging 26km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 27 to 29°C. Rainfall is heavy, totalling around 844mm across the season with a monthly average of 281mm. Winds are strong, averaging 29km/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 195mm for the season, averaging 65mm per month. Winds are strong, averaging 35km/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
35 km/h
88 mm
0 cm
Feb
26 °C
27 °C
36 km/h
40 mm
0 cm
Mar Current
26 °C
27 °C
31 km/h
47 mm
0 cm
Apr
26 °C
28 °C
30 km/h
49 mm
0 cm
May
27 °C
28 °C
28 km/h
73 mm
0 cm
Jun
27 °C
29 °C
26 km/h
100 mm
0 cm
Jul
27 °C
29 °C
26 km/h
241 mm
0 cm
Aug
27 °C
29 °C
26 km/h
407 mm
0 cm
Sep
27 °C
29 °C
26 km/h
340 mm
0 cm
Oct
27 °C
28 °C
29 km/h
380 mm
0 cm
Nov
27 °C
28 °C
32 km/h
125 mm
0 cm
Dec
27 °C
28 °C
35 km/h
67 mm
0 cm
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Metric (°C, km/h)