diff --git a/Common/System/System.h b/Common/System/System.h
index 7bfe71828fa3..a713616a1095 100644
--- a/Common/System/System.h
+++ b/Common/System/System.h
@@ -59,6 +59,7 @@ enum SystemProperty {
 	// Need hacky solutions to get at this.
 	SYSPROP_HAS_ADDITIONAL_STORAGE,
 	SYSPROP_ADDITIONAL_STORAGE_DIRS,
+	SYSPROP_TEMP_DIRS,
 
 	SYSPROP_HAS_FILE_BROWSER,
 	SYSPROP_HAS_FOLDER_BROWSER,
diff --git a/Qt/QtMain.cpp b/Qt/QtMain.cpp
index 32ae76e6c614..5ed1349ddae6 100644
--- a/Qt/QtMain.cpp
+++ b/Qt/QtMain.cpp
@@ -150,9 +150,19 @@ std::string System_GetProperty(SystemProperty prop) {
 }
 
 std::vector<std::string> System_GetPropertyStringVec(SystemProperty prop) {
+	std::vector<std::string> result;
 	switch (prop) {
+	case SYSPROP_TEMP_DIRS:
+		if (getenv("TMPDIR") && strlen(getenv("TMPDIR")) != 0)
+			result.push_back(getenv("TMPDIR"));
+		if (getenv("TMPDIR") && strlen(getenv("TMP")) != 0)
+			result.push_back(getenv("TMP"));
+		if (getenv("TMPDIR") && strlen(getenv("TEMP")) != 0)
+			result.push_back(getenv("TEMP"));
+		return result;
+
 	default:
-		return std::vector<std::string>();
+		return result;
 	}
 }
 
diff --git a/SDL/SDLMain.cpp b/SDL/SDLMain.cpp
index c65f583fc6b9..e04edae1e4bc 100644
--- a/SDL/SDLMain.cpp
+++ b/SDL/SDLMain.cpp
@@ -326,9 +326,20 @@ std::string System_GetProperty(SystemProperty prop) {
 }
 
 std::vector<std::string> System_GetPropertyStringVec(SystemProperty prop) {
+	std::vector<std::string> result;
+
 	switch (prop) {
+	case SYSPROP_TEMP_DIRS:
+		if (getenv("TMPDIR") && strlen(getenv("TMPDIR")) != 0)
+			result.push_back(getenv("TMPDIR"));
+		if (getenv("TMPDIR") && strlen(getenv("TMP")) != 0)
+			result.push_back(getenv("TMP"));
+		if (getenv("TMPDIR") && strlen(getenv("TEMP")) != 0)
+			result.push_back(getenv("TEMP"));
+		return result;
+
 	default:
-		return std::vector<std::string>();
+		return result;
 	}
 }
 
diff --git a/UI/MainScreen.cpp b/UI/MainScreen.cpp
index 375d09a39eb9..ca870ab8ff27 100644
--- a/UI/MainScreen.cpp
+++ b/UI/MainScreen.cpp
@@ -15,8 +15,9 @@
 // Official git repository and contact information can be found at
 // https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
 
-#include <cmath>
 #include <algorithm>
+#include <cmath>
+#include <sstream>
 
 #include "ppsspp_config.h"
 
@@ -64,13 +65,6 @@
 #include "Core/HLE/sceDisplay.h"
 #include "Core/HLE/sceUmd.h"
 
-#ifdef _WIN32
-// Unfortunate, for undef DrawText...
-#include "Common/CommonWindows.h"
-#endif
-
-#include <sstream>
-
 bool MainScreen::showHomebrewTab = false;
 
 bool LaunchFile(ScreenManager *screenManager, std::string path) {
@@ -97,8 +91,13 @@ bool LaunchFile(ScreenManager *screenManager, std::string path) {
 
 static bool IsTempPath(const std::string &str) {
 	std::string item = str;
+#ifdef _WIN32
+	// Normalize slashes.
+	item = ReplaceAll(str, "/", "\\");
+#endif
 
-	const auto testPath = [&](std::string temp) {
+	std::vector<std::string> tempPaths = System_GetPropertyStringVec(SYSPROP_TEMP_DIRS);
+	for (auto temp : tempPaths) {
 #ifdef _WIN32
 		temp = ReplaceAll(temp, "/", "\\");
 		if (!temp.empty() && temp[temp.size() - 1] != '\\')
@@ -107,37 +106,9 @@ static bool IsTempPath(const std::string &str) {
 		if (!temp.empty() && temp[temp.size() - 1] != '/')
 			temp += "/";
 #endif
-		return startsWith(item, temp);
-	};
-
-	const auto testCPath = [&](const char *temp) {
-		if (temp && temp[0])
-			return testPath(temp);
-		return false;
-	};
-
-#ifdef _WIN32
-	// Normalize slashes.
-	item = ReplaceAll(str, "/", "\\");
-
-	std::wstring tempPath(MAX_PATH, '\0');
-	size_t sz = GetTempPath((DWORD)tempPath.size(), &tempPath[0]);
-	if (sz >= tempPath.size()) {
-		tempPath.resize(sz);
-		sz = GetTempPath((DWORD)tempPath.size(), &tempPath[0]);
+		if (startsWith(item, temp))
+			return true;
 	}
-	// Need to resize off the null terminator either way.
-	tempPath.resize(sz);
-	if (testPath(ConvertWStringToUTF8(tempPath)))
-		return true;
-#endif
-
-	if (testCPath(getenv("TMPDIR")))
-		return true;
-	if (testCPath(getenv("TMP")))
-		return true;
-	if (testCPath(getenv("TEMP")))
-		return true;
 
 	return false;
 }
diff --git a/UWP/PPSSPP_UWPMain.cpp b/UWP/PPSSPP_UWPMain.cpp
index 60a73f86952a..6b4404e5f581 100644
--- a/UWP/PPSSPP_UWPMain.cpp
+++ b/UWP/PPSSPP_UWPMain.cpp
@@ -357,9 +357,31 @@ std::string System_GetProperty(SystemProperty prop) {
 }
 
 std::vector<std::string> System_GetPropertyStringVec(SystemProperty prop) {
+	std::vector<std::string> result;
 	switch (prop) {
+	case SYSPROP_TEMP_DIRS:
+	{
+		std::wstring tempPath(MAX_PATH, '\0');
+		size_t sz = GetTempPath((DWORD)tempPath.size(), &tempPath[0]);
+		if (sz >= tempPath.size()) {
+			tempPath.resize(sz);
+			sz = GetTempPath((DWORD)tempPath.size(), &tempPath[0]);
+		}
+		// Need to resize off the null terminator either way.
+		tempPath.resize(sz);
+		result.push_back(ConvertWStringToUTF8(tempPath));
+
+		if (getenv("TMPDIR") && strlen(getenv("TMPDIR")) != 0)
+			result.push_back(getenv("TMPDIR"));
+		if (getenv("TMPDIR") && strlen(getenv("TMP")) != 0)
+			result.push_back(getenv("TMP"));
+		if (getenv("TMPDIR") && strlen(getenv("TEMP")) != 0)
+			result.push_back(getenv("TEMP"));
+		return result;
+	}
+
 	default:
-		return std::vector<std::string>();
+		return result;
 	}
 }
 
diff --git a/Windows/main.cpp b/Windows/main.cpp
index c7e9dc9fd678..21bfe67f1adf 100644
--- a/Windows/main.cpp
+++ b/Windows/main.cpp
@@ -217,9 +217,31 @@ std::string System_GetProperty(SystemProperty prop) {
 }
 
 std::vector<std::string> System_GetPropertyStringVec(SystemProperty prop) {
+	std::vector<std::string> result;
 	switch (prop) {
+	case SYSPROP_TEMP_DIRS:
+	{
+		std::wstring tempPath(MAX_PATH, '\0');
+		size_t sz = GetTempPath((DWORD)tempPath.size(), &tempPath[0]);
+		if (sz >= tempPath.size()) {
+			tempPath.resize(sz);
+			sz = GetTempPath((DWORD)tempPath.size(), &tempPath[0]);
+		}
+		// Need to resize off the null terminator either way.
+		tempPath.resize(sz);
+		result.push_back(ConvertWStringToUTF8(tempPath));
+
+		if (getenv("TMPDIR") && strlen(getenv("TMPDIR")) != 0)
+			result.push_back(getenv("TMPDIR"));
+		if (getenv("TMPDIR") && strlen(getenv("TMP")) != 0)
+			result.push_back(getenv("TMP"));
+		if (getenv("TMPDIR") && strlen(getenv("TEMP")) != 0)
+			result.push_back(getenv("TEMP"));
+		return result;
+	}
+
 	default:
-		return std::vector<std::string>();
+		return result;
 	}
 }
 
diff --git a/android/jni/app-android.cpp b/android/jni/app-android.cpp
index 90070eedd102..a5a172432597 100644
--- a/android/jni/app-android.cpp
+++ b/android/jni/app-android.cpp
@@ -372,6 +372,8 @@ std::vector<std::string> System_GetPropertyStringVec(SystemProperty prop) {
 	switch (prop) {
 	case SYSPROP_ADDITIONAL_STORAGE_DIRS:
 		return g_additionalStorageDirs;
+
+	case SYSPROP_TEMP_DIRS:
 	default:
 		return std::vector<std::string>();
 	}
diff --git a/ios/main.mm b/ios/main.mm
index 80825849334c..4b3e768d5cf7 100644
--- a/ios/main.mm
+++ b/ios/main.mm
@@ -66,6 +66,7 @@ kern_return_t catch_exception_raise(mach_port_t exception_port,
 
 std::vector<std::string> System_GetPropertyStringVec(SystemProperty prop) {
 	switch (prop) {
+	case SYSPROP_TEMP_DIRS:
 	default:
 		return std::vector<std::string>();
 	}