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Saipan in August: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Saipan in August will be like? Take a look at our weather guide for Saipan, based on historical data.
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August

Weather in Saipan in August 2025

OK Weather
Warm
🌧️
Rainy
If you plan to visit Saipan in August, the weather is typically alright, with an average high temperature of +28°C during the day and approximately 0 sunny days. Expect some rainy, though, as there are typically 30 rainy days in the month and around 374 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+28°C
Avg. max. temperature
+22°C
Min.
+33°C
Max.
374 mm
Total precipitation
84%
Avg. humidity
3 m/s
Avg. wind
0 ☀️
Sunny Days
0 ⛅️
Cloudy
30 🌦
Rainy
Our opinion: Saipan has OK weather in August.

Average temperature in Saipan in August

Here are the expected maximum, average and minimum temperatures in Saipan for August based on the historical data.
Last Year
Historical Data

Going from a maximum of +28°C during the day to a minimum of +25°C during the night, the temperature in August averages around +27°C.

The average maximum temperature goes down 33% by the end of the month, compared with the beginning of the month, from +28°C to +27°C.

Is Saipan warm or cold in August?

Saipan is typically warm in August.

Maximum temperatures go up compared to the previous month from +28°C to +28°C. The minimum temperature also goes up from +25°C to +25°C.

It’s generally warm, but pack a long-sleeve shirt for evenings.

August is one of the warmest months in Saipan, here is the comparison with other months:

Climate in Saipan in August

Saipan weather looks like this, on average, in August and the surrounding months.
JulyAugustSeptember
Avg. temperature
+28°C+28°C+28°C
Min. temperature
+22°C+22°C+19°C
Max. temperature
+33°C+33°C+33°C
Rainfall
261 mm374 mm338 mm
Wind
4 m/s3 m/s3 m/s
Humidity
83%84%84%
Air pressure
1009 HPa1008 HPa1008 HPa
Sunny days
000
Cloudy days
101
Rainy days
303029
Snowy days
000

August weather is still as ok as in July. The temperature levels stay the same in the area of +28°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 261 mm to 374 mm. Humidity rises from 83% to 84%. Winds are calmer in comparison to July, going down from 4 m/s to 3 m/s on average. The amount of sunny days stay about the same, averaging 0 sunny days during the month.

September brings much the same weather, it remains ok.

Wind

Wind speed in Saipan in August based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Saipan is gradually increasing during August, going from 1 m/s to 5 m/s over the course of the month.

Rain

Amount of rainfall in mm during August in Saipan based on historical data.
Last Year
Historical Data
Typically, there is a 97% chance of rain on an average day in August, with total rainfall of approximately 536 mm. The maximum amount of rainfall per day is around 68 mm, which is considered heavy rain. August is a pretty wet month with over 30 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
August is one of the rainiest months in Saipan, here is a comparison with other months, total mm:
Saipan wettest month is August, where a typical day has a 97% chance of precipitation and 374 mm of rainfall per day. March, on the other hand, is the driest month with a mere 74% chance of precipitation and 49 mm of rainfall per day.

How was the weather last August in Saipan?

This is the weather in Saipan in August 2024:
1 August
🌧️
+28°C
2 August
🌧️
+28°C
3 August
🌧️
+27°C
4 August
☀️
+28°C
5 August
☀️
+28°C
6 August
☁️
+28°C
7 August
🌧️
+28°C
8 August
🌧️
+28°C
9 August
🌧️
+27°C
10 August
🌧️
+27°C
11 August
🌧️
+27°C
12 August
🌧️
+27°C
13 August
🌧️
+28°C
14 August
🌧️
+27°C
15 August
🌧️
+27°C
16 August
☀️
+28°C
17 August
🌧️
+27°C
18 August
☀️
+28°C
19 August
🌧️
+27°C
20 August
🌧️
+28°C
21 August
☀️
+28°C
22 August
🌧️
+28°C
23 August
🌧️
+28°C
24 August
🌧️
+28°C
25 August
🌧️
+27°C
26 August
🌧️
+27°C
27 August
🌧️
+27°C
28 August
🌧️
+27°C
29 August
🌧️
+26°C
30 August
🌧️
+27°C
31 August
🌧️
+27°C
In August 2024 Saipan had 5 sunny days, 1 cloudy days, and 25 rainy days. The average maximum temperature was +27°C, with an absolute maximum of +28°C and a minimum of +26°C. The average humidity was 93%, with a maximum of 100% and a minimum of 70%. The average wind speed was 2 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in August?

Climate Change over Years

This is how Saipan climate have been changing during last 43 years period.

The climate in Saipan in August has not changed much over the last 43 years.

The average temperature was the lowest in 1992 (+26°C) and the highest in 2020 (+30°C). The driest year was 1998 with only 954 mm of rainfall, and the wettest year was 2011 with 3183 mm.

FAQ

Frequently asked questions about the weather in Saipan in August:

Is August a good time to visit Saipan?

It’s always a good time to visit Saipan, but the weather is changeable in August, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Saipan in August?

August is warm in Saipan. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Saipan rainy in August?

Saipan is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Saipan in August?

Usually, it’s not very sunny in Saipan in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Monthly weather in Saipan

Source of the data

For this page, we’ve looked at the typical weather in Saipan, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.