June Weather in Mattawa, United States

Last updated: June 24, 2025

In June, the average temperature in Mattawa, United States hovers around 21°C (70°F), with an interesting range where the minimum dips to 8°C (46°F) and the maximum peaks at a scorching 46°C (115°F). Expect a touch of moisture as well, with an average precipitation of 7 mm (0.3 in) over just 2 days. The air maintains a high humidity level of 82%, adding a tropical feel to this vibrant locale.

June Temperature in Mattawa

In June in Mattawa, the average temperature is 21°C (70°F). The maximum can reach 46°C (115°F) while the minimum can dip as low as 8°C (46°F). Be prepared for a wide range of temperatures when planning your travels.

June Weather in Mattawa: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Mattawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mattawa, June typically has an average temperature of 21°C (70°F), with highs reaching up to 46°C (115°F) and lows dropping to around 8°C (46°F).

Data source: Temperature data for Mattawa generated using information from the Copernicus Climate Change Service.

June Precipitation in Mattawa

In Mattawa in June, the precipitation amount is 7 mm (0.3 in) over a period of 2 days.

June Precipitation Trends in Mattawa

The chart displays monthly precipitation patterns in Mattawa, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Mattawa, June typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

June Humidity in Mattawa

In Mattawa in June, humidity is 82%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace that can quickly lead to discomfort for travelers, making outdoor activities less enjoyable and requiring frequent breaks for hydration.

June Average Humidity in Mattawa

This chart illustrates the average monthly humidity levels in Mattawa, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Mattawa is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Mattawa

In Mattawa in June, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Mattawa.

Maximum UV Index Levels in Mattawa for June

The chart shows the monthly maximum UV Index (UVI) for Mattawa in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In June, the maximum UV index in Mattawa typically reaches 9, which falls under the very high exposure category.

Data source: Mattawa June UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How June Weather in Mattawa Compares to Other Months

Weather in Mattawa varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Mattawa, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Mattawa, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	45 mm (1.8 inches)	86%	low
February Weather	0°C (33°F)	43 mm (1.7 inches)	86%	moderate
March Weather	6°C (43°F)	27 mm (1.1 inches)	87%	moderate
April Weather	11°C (52°F)	26 mm (1.0 inches)	84%	high
May Weather	17°C (63°F)	17 mm (0.7 inches)	81%	very high
June Weather	21°C (70°F)	7 mm (0.3 inches)	82%	very high
July Weather	25°C (77°F)	1 mm (0.0 inches)	79%	very high
August Weather	25°C (77°F)	5 mm (0.2 inches)	63%	very high
September Weather	19°C (66°F)	14 mm (0.5 inches)	62%	high
October Weather	11°C (51°F)	33 mm (1.3 inches)	83%	moderate
November Weather	4°C (40°F)	35 mm (1.4 inches)	89%	moderate
December Weather	0°C (33°F)	38 mm (1.5 inches)	88%	low